Updated on 2022/10/26

写真a

 
ITOH Takashi
 
Organization
Graduate School of Engineering Chemical Systems Engineering 2 Associate professor
Graduate School
Graduate School of Engineering
Undergraduate School
School of Engineering Materials Science and Engineering
Title
Associate professor
Contact information
メールアドレス

Degree 1

  1. 工学博士 ( 1992.6   名古屋大学 ) 

Research Interests 5

  1. morphological properties of powder

  2. powder metallurgy process

  3. thermoelectric power generation system

  4. thermoelectric module

  5. thermoelectric materials

Research Areas 3

  1. Others / Others  / Inorganic Material/Physical Properties

  2. Others / Others  / Electron/Electric Material Engineering

  3. Others / Others  / Structural/Functional Materials

Current Research Project and SDGs 3

  1. Developement of high performance thermoelectric materials

  2. Development of thermoelectric power generating module for waste heat recovery

  3. Characterization of Powder and Powder Processing

Research History 11

  1. 名古屋大学大学院工学研究科化学システム工学専攻   准教授

    2017.4

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    Country:Japan

  2. 鈴鹿工業高等専門学校  (鉄鋼材料講義担当)   非常勤講師

    2015.10 - 2016.3

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    Country:Japan

  3. 東京理科大学総合研究機構未利用熱エネルギー変換研究部門   客員准教授

    2013.4 - 2018.3

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    Country:Japan

  4. 名古屋大学大学院工学研究科マテリアル理工学専攻   准教授

    2012.4 - 2017.3

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    Country:Japan

  5. 名古屋大学エコトピア科学研究所   准教授

    2007.4 - 2012.3

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    Country:Japan

  6. 名古屋大学エコトピア科学研究所   助教授

    2005.4 - 2007.3

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    Country:Japan

  7. 名古屋大学エコトピア科学研究機構   助教授

    2004.4 - 2005.3

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    Country:Japan

  8. 名古屋大学高効率エネルギー変換研究センター   助教授

    2002.4 - 2004.3

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    Country:Japan

  9. 名古屋大学大学院工学研究科材料プロセス工学専攻   助手

    1997.4 - 2002.3

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    Country:Japan

  10. 名古屋大学工学部材料プロセス工学科   助手

    1989.4 - 1997.3

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    Country:Japan

  11. 名古屋大学工学部鉄鋼工学科   助手

    1985.10 - 1989.3

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    Country:Japan

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Education 2

  1. Nagoya University   Graduate School, Division of Engineering

    - 1985

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    Country: Japan

  2. Nagoya University   Faculty of Engineering

    - 1983

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    Country: Japan

Professional Memberships 12

  1. 日本金属学会   会誌・欧文誌編集委員会査読委員

    2014.4 - 2020.3

  2. 日本金属学会

  3. The Thermoelectrics Society of Japan

    2012.9

  4. 粉体粉末冶金協会   技術・品質評価委員会委員長

    2004.4 - 2020.3

  5. Materials Research Society

  6. 日本金属学会・鉄鋼協会東海支部   評議員

    2004.4 - 2014.3

  7. 粉体粉末冶金協会   理事

    2014.4

  8. 粉体粉末冶金協会   出版編集委員会委員

    2014.4

  9. 粉体粉末冶金協会   評議員

    2012.4 - 2013.3

  10. 粉体粉末冶金協会   技術・品質評価委員会委員

    1992.4 - 2004.3

  11. 日本学術振興会   先端材料技術第156委員会委員

    1993.4 - 1998.3

  12. 粉体粉末冶金協会   参事

    1994.4

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Committee Memberships 3

  1. TC47/WG7国内小委員会 熱電発電デバイスPJ   客員委員  

    2017.2   

  2. 排熱発電コンソーシアム   会長  

    2015.8 - 2018.7   

  3. 排熱発電コンソーシアム   特別会員  

    2009.4   

Awards 7

  1. 粉体粉末冶金協会第31回技術進歩賞

    2013.5   粉体粉末冶金協会  

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    Country:Japan

  2. 優秀ポスター賞

    2011.12   日本金属学会・日本鉄鋼協会東海支部  

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    Country:Japan

  3. Excellent Presentation Award

    2011.12   EcoTopia Science Institute, Nagoya University  

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    Country:Japan

  4. 優秀ポスター賞

    2011.11   日本金属学会  

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    Country:Japan

  5. Award of Excellence, ATA

    2008.11   ATA Organizing Comittee  

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    Country:Korea, Republic of

  6. 永井科学技術財団賞「学術賞」

    2001.5   永井科学技術財団  

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    Country:Japan

  7. 粉体粉末冶金協会第17回研究進歩賞

    1993.3   粉体粉末冶金協会  

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    Country:Japan

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Papers 150

  1. Improved conversion efficiency of p-type BaSi2/n-type crystalline Si heterojunction solar cells by a low growth rate deposition of BaSi2 Reviewed

    Michinobu Fujiwara, Kazuma Takahashi, Yoshihiko Nakagawa, Kazuhiro Gotoh, Takashi Itoh, Yasuyoshi Kurokawa, Noritaka Usami

    AIP Advances   Vol. 12 ( 4 ) page: 045115   2022.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: doi.org/10.1063/5.0083812

  2. Fabrication of heterojunction crystalline Si solar cells with BaSi2 thin films prepared by a two-step evaporation method Reviewed

    Yoshihiko Nakagawa, Kazuma Takahashi, Michinobu Fujiwara, Kosuke O. Hara, Kazuhiro Gotoh, Yasuyoshi Kurokawa, Takashi Itoh, Takashi Suemasu, Noritaka Usami

    JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 60 ( 10 ) page: 105503-1 - 105503-6   2021.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.35848/1347-4065/ac23ec

    DOI: 10.35848/1347-4065/ac23ec

    Web of Science

    Other Link: https://iopscience.iop.org/article/10.35848/1347-4065/ac23ec/meta

  3. 燃焼合成を利用して作製したMg3+δSb2発泡体の形態と熱電特性 Reviewed

    古賀誉史, 伊藤孝至

    粉体および粉末冶金   Vol. 68 ( 9 ) page: 399 - 404   2021.9

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    Authorship:Corresponding author   Language:Japanese  

    DOI: 10.2497/jjspm.68.399

  4. Trends in Development of Thermoelectric Power Generation Materials for Vehicle Invited Reviewed

    Systems, Control and Information   Vol. 65 ( 6 ) page: 201 - 206   2021.6

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)  

  5. Quantitative Analysis on Influence of Structural Conditions on Thermoelectric Properties of Tilted Rod-Ni/Mg2Si Composites Based on Finite Element Simulation Reviewed

    Itoh Takashi

    MATERIALS TRANSACTIONS   Vol. 62 ( 2 ) page: 246 - 251   2021

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/matertrans.Y-M2020862

    Web of Science

  6. Optimization of Degreasing-Sintering Process for Mg2Si/PLA Mixture and Influences of Additive Amount of Al on Sintered Density and Thermoelectric Performance of Mg2Si Fabricated by the Optimized Process Reviewed

    Takashi Itoh, Takumi Nakano

    MRS Advances   Vol. 5 ( 10 ) page: 459 - 467   2020.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    Fused deposition modelling (FDM) type of 3D printing is widely used for manufacturing complex shaped polymer products. Recently, the metal/polymer composite products can be made by 3D printer using metal/polymer composite filament. Now, we are planning to develop a new manufacturing process of the thermoelectric (TE) elements or modules by combining the FDM-type 3D printing and the degreasing-sintering process. In this work, we focused on the degreasing-sintering process of the mixture of Mg2Si and polylactic acid (PLA) powders. Mg2Si compound powder was synthesized by a liquid-solid phase reaction (LSPR) method. The powder mixtures of Mg2Si, Al and PLA were pressed and heated in a pulse discharge sintering (PDS) chamber under a vacuum in various degreasing conditions. Following the degreasing, the sintering of Mg2Si was carried out in the same PDS chamber at various starting sintering temperatures. Sintered density, Seebeck coefficient and electrical resistivity of the consolidated Mg2Si were measured and the power factor as a TE performance was estimated from the TE properties. The optimum conditions of degreasing-sintering process maximizing the sintered density and the TE performance of Al-doped Mg2Si were investigated. Furthermore, the influences of the additive amount of Al on the sintered density and the TE performance of Mg2Si fabricated via the optimized degreasing-sintering process were investigated.

    DOI: 10.1557/adv.2020.87

    DOI: 10.1557/adv.2020.87

    Web of Science

  7. Synthesis of Mg2Si thin film by thermal treatment under inert gas atmosphere and evaluation of film quality Reviewed

    Issei Horiba, Michinobu Fujiwara, Yoshihiko Nakagawa, Kazuhiro Gotoh, Yasuyoshi Kurokawa, Takashi Itoh and Noritaka Usami

    JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 59   page: SFFB03-1 - SFFB03-5   2020.4

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    We report on the synthesis of Mg2Si thin films from a Mg-Si solution by thermal treatment of Mg on a Si substrate under an Ar gas atmosphere. The Mg was prepared by two methods. One is to deposit Mg films by thermal evaporation, and another is to simply place Mg ribbons on Si. After thermal treatment, a two-layer structure consisting of oxide and ~1 μm-thick Mg2Si films with {100} preferential orientation was observed for the sample prepared by thermal evaporation. On the other hand, ~10 μm-thick single layer Mg2Si with more random orientations and cracks was formed for the Mg ribbon contact samples. Possible mechanisms for different structures, crystal orientations, and crack formation are discussed.

    DOI: 10.35848/1347-4065/ab6b79

    DOI: 10.35848/1347-4065/ab6b79

    Web of Science

    Other Link: https://iopscience.iop.org/article/10.35848/1347-4065/ab6b79/meta

  8. 横方向熱電効果を有する Ni/Mg2Si複合材料の熱電特性に関する有限要素シミュレーション解析 Reviewed

    伊藤 孝至

    粉体および粉末冶金   Vol. 66 ( 2 ) page: 80-88   2019.2

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    Authorship:Lead author   Language:Japanese  

    DOI: 10.2497/jjspm.66.80

  9. 有限要素シミュレーションに基づく傾斜棒状Ni/Mg2Si複合材料の熱電特性に及ぼす構造条件の影響に関する定量解析 Reviewed

    伊藤 孝至

    粉体および粉末冶金   Vol. 65 ( 11 ) page: 713-718   2018.11

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2497/jjspm.65.713

  10. Finite Element Simulation on Thermoelectric Performance of Tilted Mg2Si/Ni Multilayer Composites Reviewed

    Takashi Itoh

    J. Jpn Soc. Powder and Powder Metallurgy   Vol. 65 ( 3 ) page: 154-157   2018.3

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    Mg2Si is a promising n-type thermoelectric (TE) material for TE power generation using waste heat with temperature range of 300 to 600oC. Construction of multilayer composites with Mg2Si and metallic material brings anisotropy in TE properties and enhancement in mechanical properties. The transverse TE force is created by giving vertical temperature difference in the tilted anisotropic TE material (transverse TE effect). In this study, the tilted Mg2Si/Ni multilayer composites were focused on, and the influences of the structural conditions on the TE performance were investigated using a finite element simulation (FES). The simulations were carried out using two types of element models of the multilayer composites with different thickness ratio and tilt angle of Mg2Si layer under the same temperature conditions of 500oC (hot side) and 100oC (cold side). The output power of the multilayer composites as a TE performance was calculated from the open-circuit voltage and the internal resistance estimated using FES. The values changed with the thickness ratio and the tilt angle. The optimum structural conditions of thickness ratio and the tilt angle which maximized the output power of the tilted multilayer composites were found out.

    DOI: 10.2497/jjspm.65.154

  11. 有限要素シミュレーションを用いたMg2Si/Ni傾斜積層複合材料の熱電特性および性能の解析 Reviewed

    伊藤 孝至

    粉体および粉末冶金   Vol. 64 ( 9 ) page: 501-509   2017.9

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.2497/jjspm.64.501

  12. Cobalt and Iron Doping Effects on Thermoelectric Properties of Higher Manganese Silicides Prepared by Mechanical Milling and Pulse Discharge Sintering Reviewed

    Takashi Itoh, Shinya Uebayashi

    J. Jpn Soc. Powder and Powder Metallurgy   Vol. 63 ( 7 ) page: 491-496   2016.7

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2497/jjspm.63.491

  13. Influence of Pulverization and CaO Nanoparticles Addition on Thermoelectric Properties and Grain Growth of Mg2Si Based Compound Reviewed

    Takashi Itoh, Akira Tominaga

    Materials Transactions   Vol. 57 ( 7 ) page: 1088-1093   2016.7

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/matertrans.Y-M2016812

  14. Thermoelectric Properties of Al-doped Mg2Si Compounds Prepared via Three Kinds of Process for Grain Refinement Reviewed

    Takashi Itoh, Akira Tominaga

    MRS Advances   Vol. 1 ( Issue 60 ) page: 3989 - 3995   2016.5

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1557/adv.2016.374

  15. Thermoelectric Properties of Crystal Aligned Higher Manganese Silicide Fabricated by Solidification under Magnetic Field Reviewed

    Kazushige Yamauchi, Takeshi Hagio, Tomoya Mitsuo, Kazuhiko Iwai, Takashi Itoh

    Japanese Journal of Applied Physics   Vol. 54 ( 11 ) page: 117102-1-6   2015.10

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    MnSi1.73 is a promising p-type thermoelectric material for use in the intermediate-temperature region owing to its high oxidation resistance. Its thermoelectric properties are highly dependent on crystallographic direction and control of crystal alignment is thus important for polycrystalline MnSi1.73. On the other hand, solidification under magnetic fields has been reported to directly yield crystal aligned structures in various alloys. Here, a 3T magnetic field was imposed during solidification of MnSi1.73 for the first time. X-ray diffraction analysis indicated that polycrystalline MnSi1.73 with c-axes aligned perpendicularly to the magnetic field was successfully obtained. The Seebeck coefficient slightly decreased while the electrical conductivity increased more than twofold along the magnetic field direction compared with those of the sample solidified without the magnetic field, which reflected the trend of a single crystal. The power factor reached a maximum of 2.09×10-4 W m-1K-2 at 771 K; however, this was about one-fifth of that of a single crystal. Improvement in electrical conductivity by prevention of crack formation shall realize high performance expected from the crystal aligned structure.

    DOI: 10.7567/JJAP.54.117102

  16. Mg2Si系化合物の熱電特性と粒成長に及ぼす粉砕とCaOナノ粒子添加の影響 Reviewed

    伊藤 孝至, 富永 彰

    粉体および粉末冶金   Vol. 62 ( 3 ) page: 114-119   2015.3

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)  

  17. 粉末冶金プロセスを用いた環境調和型シリサイド系熱電変換材料の開発 Invited Reviewed

    伊藤 孝至

    粉体および粉末冶金   Vol. 61 ( 11 ) page: 514-520   2014.11

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    Authorship:Lead author   Language:Japanese  

  18. Design of Segmented Thermoelectric Generator Based on Cost-effective and Light-weight Thermoelectric Alloys Reviewed

    Hee Seok Kim, Keiko Kikuchi, Takashi Itoh, Tsutomu Iida, Minoru Taya

    Materials Science and Engineering B   Vol. 185   page: 45-52   2014.7

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    A segmented thermoelectric (TE) generator was designed with higher temperature segments composed of n-type Mg2Si and p-type higher manganese silicide (HMS) and lower temperature segments composed of n- and p-type Bi-Te based compounds. Since magnesium and silicon based TE alloys have low densities, they produce a TE module with a high specific power density that is suitable for airborne applications. A two-pair segmented π-shaped TE generator was assembled with low contact resistance materials across bonding interfaces. The peak specific power density of this generator was measured at 42.9 W/kg under a 498 oC temperature difference, which has a good agreement with analytical predictions.

    DOI: 10.1016/j.mseb.2014.02.005

  19. 液相‐固相反応法とパルス放電焼結法を用いて作製したMg2Siの焼結性と熱電特性に及ぼすAl添加の影響 Reviewed

    伊藤 孝至, 富永 彰

    粉体および粉末冶金   Vol. 61 ( 6 ) page: 324-328   2014.6

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)  

  20. Influence of Aluminum Addition on Thermoelectric Performance of Mg2Si Compound under Air Exposure with Temperature Difference Reviewed

    T. Itoh, A. Tominaga

    Mater. Res. Soc. Symp. Proc.   Vol. 1642   page: Online mrsf13-1642-bb03-11   2014.5

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1557/opl.2014.446

  21. Design of Linear Shaped Thermoelectric Generator and Self-integration Using Shape Memory Alloy Reviewed

    Hee Seok Kim, Takashi Itoh, Tsutomu Iida, Minoru Taya, Keiko Kikuchi

    Materials Science and Engineering B   Vol. 183   page: 61-68   2014.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.mseb.2013.11.012

  22. 半導体機器用Cr-Cu材ヒートシンクの焼結条件と溶浸性の関係 Reviewed

    寺尾星明, 小日置英明, 太田裕樹, 伊藤孝至, 金武直幸

    粉体および粉末冶金   Vol. 60 ( 8 ) page: 367-372   2013.8

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  23. 液相-固相反応法で合成したMg2Si系化合物の焼結性と熱電特性に及ぼすMg仕込量とB添加量の影響 Reviewed

    富永 彰, 伊藤 孝至

    粉体および粉末冶金   Vol. 60 ( 8 ) page: 354-359   2013.8

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  24. Influence of Addition of Alumina Nanoparticles on Thermoelectric Properties of Higher Manganese Silicide Reviewed

    T. Itoh, N. Ono

    Mater. Res. Soc. Symp. Proc.   Vol. 1490   page: Online mrsf12-1490-b09-31   2013.1

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1557/opl.2012.1644

  25. Influence of Addition of Alumina Nanoparticles on Thermoelectric Properties of La-filled Skutterudite CoSb3 Compounds Reviewed

    T. Itoh, M. Matsuhara

    Materials Transactions   Vol. 53 ( 10 ) page: 1801-1805   2012.10

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  26. Development of Cr-Cu Heat-sink(J-C'CREP®) for Semiconductor Device Reviewed

    H. Terao, H. Kobiki, H. Ota, K. Tanabe, T. Itoh, N. Kanetake

    Proc. 2012 Powder Metallurgy World Congress & Exhibition (PM2012)     page: CD-ROM 16F-T14-13   2012.10

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  27. Development of Eco-Friendly Thermoelectric Silicide Compounds and Modules for Energy Harvesting Reviewed

    T. Itoh, K. Nishigata

    Proc. 2012 Powder Metallurgy World Congress & Exhibition (PM2012)     page: CD-ROM 16E-S1-15   2012.10

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    Authorship:Lead author   Language:English  

  28. Effects of Heavy Element Substitution on Electric Structure and Lattice Thermal Conductivity of Fe2VAl Thermoelectric Material Reviewed

    Y. Terazawa, M. Mikami, T. Itoh, T. Takeuchi

    J. Electronic Materials   Vol. 41 ( 6 ) page: 1348-1353   2012.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11664-011-1862-z

  29. Thermoelectric Properties of Mg2Si-Based Compounds Synthesized Partially Using Magnesium Alloy Reviewed

    T. Itoh, K. Hagio

    AIP Conf. Proc.   Vol. 1449   page: 207-210   2012.6

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    Mg2Si compounds are promising eco-friendly thermoelectric materials because both constituent elements of Mg and Si have no toxicity and exist richly in earth crust. We have a plan to use the compounds in the applications that convert waste heat in the temperature range (600-900 K) into electric power. However, the thermoelectric performance of the compounds has not yet reached to the practical use level. In addition, the compounds don't have durability in the thermoelectric performance under atmospheric circumstances in the temperature range of 750-900 K. These issues have to be solved for the practical use. In our previous work, we obtained knowledge that Al doping in Mg2Si lower the electrical resistivity and improved the thermoelectric performance. We newly attempted to use a magnesium alloy (AZ61) that includes the main three elements of aluminum (5.8-7.2 wt%), zinc (0.4-1.5 wt%) and manganese (0.15-0.35 wt%) in order to synthesize the Mg2Si-based compounds. The Mg2Si-based compound powders were synthesized from the mixture of silicon powder, AZ61 chips and Mg powder by the liquid-solid phase reaction method. The compound powders were sintered by the pulse discharge sintering method. The influence of mixing ratio of two metals of AZ61 and pure Mg on the thermoelectric properties was investigated. Addition of AZ61 greatly decreased the electrical resistivity as well as Al-doped Mg2Si and the thermoelectric performance had improved most in the 50wt%AZ61 sample.

    DOI: 10.1063/1.4731533

  30. 粉砕とパルス放電焼結を組合わせた方法による高マンガンシリサイドの合成とその熱電特性

    伊藤孝至

    日本熱電会誌   Vol. 8 ( 3 ) page: 18-21   2012.3

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    Authorship:Lead author   Language:Japanese  

  31. Fe2VAlの電子構造と熱電物性における重元素部分置換効果 Reviewed

    寺澤祐一,三上祐史,伊藤孝至,竹内恒博

    日本金属学会誌   Vol. 76 ( 3 ) page: 216-221   2012.3

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  32. Solidification of MnSi1.73 in A Magnetic Field Reviewed

    T. Mitsuo, K. Iwai, T. Itoh

    Proc. International Symposium on EcoTopia Science 2011     page: 43   2011.12

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  33. Development of Thermal Rectifier Using Unusual Electron Thermal Conductivity Reviewed

    R. Nakayama, T. Itoh, T. Takeuchi

    Proc. International Symposium on EcoTopia Science 2011     page: 173   2011.12

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  34. Synthesis of Ti-doped Higher Manganese Silicide by Pulse Discharge Sintering Reviewed

    N. Ono, T. Itoh

    Proc. International Symposium on EcoTopia Science 2011     page: 236   2011.12

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  35. Thermoelectric Properties of Mg2Si-Based Compounds Synthesized Using Three Kinds of Magnesium Alloy Reviewed

    K. Hagio, T. Itoh

    Proc. International Symposium on EcoTopia Science 2011     page: 235   2011.12

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  36. Effect of Filling of Mg and Addition of Alumina Nanoparticles on Thermoelectric Properties of N-type La Filled CoSb3 Compounds Reviewed

    M. Matsuhara, T. Itoh

    Proc. International Symposium on EcoTopia Science 2011     page: 237   2011.12

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  37. Synthesis of β-Zn4Sb3 Thermoelectric Nanoparticles by Reaction of Synthesized Sb Nanoparticles and Molten Zn Reviewed

    T. Maruyama, T. Itoh

    Proc. International Symposium on EcoTopia Science 2011     page: 234   2011.12

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  38. Synthesis of Higher Manganese Silicide and It's Thermoelectric Property Reviewed

    N. Ono, T. Itoh

    Proc. International Symposium on Materials Science and Innovation for Sustainable Society   Vol. 2   page: 11-12   2011.11

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  39. Thermoelectric Properties and Durability of Mg2Si-Based Compounds Synthesized Using Magnesium Alloy Reviewed

    K. Hagio, T. Itoh

    Proc. International Symposium on Materials Science and Innovation for Sustainable Society   Vol. 2   page: 13-14   2011.11

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  40. Thermoelectric Properties of n-type La-Mg Double Filled CoSb3 Compounds Synthesized by MA-PDS Reviewed

    T. Maruyama, T. Itoh

    Proc. International Symposium on Materials Science and Innovation for Sustainable Society   Vol. 2   page: 15-16   2011.11

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  41. Thermoelectric Properties of Mg2Si-based Compounds Synthesized Partially Using Magnesium Alloy Reviewed

    T. Itoh, K. Hagio

    Proc. 9th European Conference on Thermoelectrics     page: CD-ROM B_39_P   2011.9

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  42. Development of Thermal Rectifier Usable at High Temperature Reviewed

    T. Takeuchi, H. Goto, Y. Toyama, T. Itoh, M. Mikami

    J. Electronic Materials   Vol. 40 ( 5 ) page: 1129-1135   2011.5

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  43. Thermoelectric Properties of Carbon Nanotubes Added n-type CoSb3 Compound Reviewed

    T. Itoh, M. Tachikawa

    Mater. Res. Soc. Symp. Proc.   Vol. 1314   2011.5

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    DOI: 10.1557/opl.2011.515

  44. Synthesis of Bi2Te3 Nanosheets using Polyol Process Reviewed

    S. Nishiwaki, T. Itoh

    IOP Conference Series: Materials Science and Engineering   Vol. 18   2011.1

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    DOI: 10.1088/1757-899X/18/14/142009

  45. Thermoelectric Properties of Carbon Nanotubes Added n-type CoSb3 Compound

    T. Itoh and M. Tachikawa

    2010 MRS Fall Meeting Abstracts     page: CD-ROM ID:911936   2010.12

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  46. Fabrication and Thermoelectric Properties of Eco-Friendly Silicides for Thermoelectric Power Generation Using Waste Heat Reviewed

    T. Itoh

    Transactions of JWRI   Vol. 39 ( 2 ) page: 276-278   2010.12

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  47. Synthesis of Bi2Te3 Nanosheets Using Polyol Process Reviewed

    S. Nishiwaki and T. Itoh

    3rd International Congress on Ceramics Abstracts     page: CD-ROM, S9C-P019   2010.11

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  48. Fabrication and Thermoelectric Properties of Eco-Friendly Silicides for Thermoelectric Power Generation Using Waste Heat Reviewed

    T. Itoh

    The International Symposium on Advanced Materials Development and Integration of Novel Structured Metallic and Inorganic Materials Proc.     page: 283-284   2010.11

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  49. Synthesis of Thermoelectric Bi-Sb Alloy by Liquid-Solid Phase Reaction Method Reviewed

    S. Nishiwaki and T. Itoh

    29th International Conference on Thermoelectric Abstracts     page: 191   2010.6

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  50. Effect of Silicon Content on Thermoelectric Properties of Higher Manganese Silicide Compounds Prepared by Mechanical Grinding and Pulse Discharge Sintering

    T. Itoh and M. Yoshikura

    29th International Conference on Thermoelectric Abstracts     page: 165   2010.6

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  51. MG-PDS法で合成した高マンガンシリサイド化合物の熱電特性 Reviewed

    吉倉 雅晶,伊藤 孝至

    粉体および粉末冶金   Vol. 57 ( 4 ) page: 242-246   2010.4

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  52. 修正ポリオールプロセスによる熱電Bi-Sb合金のナノ粒子合成 Reviewed

    田中 裕介, 伊藤 孝至

    粉体および粉末冶金   Vol. 57 ( 4 ) page: 252-256   2010.4

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  53. Effect of Alumina Nanoparticles Additions on Thermoelectric Properties of n-type CoSb3 Compound Fabricated by Pulse Discharge Sintering Method Reviewed

      Vol. 36 ( 2 ) page: 85-89   2010.3

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    Thermoelectric power generation is a promising green energy system recovering waste heat. CoSb3 skutterudite compound is a candidate material for thermoelectric power generation. For improving thermoelectric performance of the material, it is necessary to lower the thermal conductivity. In this work, Al2O3 nanoparticles were added and dispersed by mechanical grinding (MG) into n-type CoSb3 compound prepared by pulse discharge sintering (PDS) method. Over long MG treatment brought high electrical resistivity, lowering thermoelectric performance of the Al2O3 nanoparticles added CoSb3 compound. Seebeck coefficient almost did not change regardless of additional amount of Al2O3 nanoparticles. Increasing additional amount of Al2O3 nanoparticles brought increasing electrical resistivity and decreasing thermal conductivity. It is found that there is an optimal additional amount of Al2O3 nanoparticles that leads to improvement of thermoelectric performance of the CoSb3 compound. The maximum thermoelectric performance (ZT=0.58) was achieved at 684K in the CoSb3 compound including Al2O3 nanoparticles of 0.1mass%.

  54. Development of Materials and Modules for Thermoelectric Power Generation Recovering Waste Heat Invited

    T. Itoh

    Abstracts of The 15th ATA Symposium (International Green Energy Conference)     page: L-06   2009.11

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    The waste heat with intermediate temperature (300-600 oC) is discharged from many kinds of combustion systems, and the thermoelectric power generation is the most effective means for its recovery. Thus, the developments of the thermoelectric materials and modules working effectively in this temperature range are required. We developed the thermoelectric materials and modules for the thermoelectric power generation recovering the waste heat

  55. Syntheses of Ni-doped and Fe-doped CoSb3 Thermoelectric Nanoparticles through Modified Polyol Process Reviewed

    T. Itoh and K. Isogai

    Mater. Res. Soc. Symp. Proc.   Vol. 1166   page: 135-140   2009.11

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    Skutterudite CoSb3 compounds are of increasing interest as materials with good thermoelectric performance over the temperature range of 600 to 800 K, but the thermal conductivity of the materials is relatively high. Nanostructured materials have been shown to enhance phonon scattering and lower the thermal conductivity of the thermoelectric materials. Partial substitution of Ni or Fe on the Co site of CoSb3 is a hopeful route for improving thermoelectric performance of the CoSb3 compounds. In the present work, synthesis of Ni-doped and Fe-doped CoSb3 nanoparticles through the modified polyol process was attempted and the optimum synthesizing condition was investigated. Co(OOCH3)2·4H2O, Ni(OOCH3)2·4H2O, FeCl3·6H2O and SbCl3, were prepared as precursors. The precursors were reduced by NaBH4 in tetraethyleneglycol at 513 K in an argon atmosphere, for different reaction times (holding times). The reaction products were characterized by the X-ray diffraction, the energy dispersive X-ray spectroscopy, and transmission electron microscopy. The nanoparticles with about 20 to 30 nm in size mainly existed in the reaction products regardless of the chemical composition and the reaction time. The skutterudite phase was identified as a main phase in the sample synthesized for long reaction time, but the other phases of Sb and MSb2 (M=Co, Ni, Fe) were also detected. The lattice parameter of the synthesized skutterudite phase linearly increased with increasing the doping agent concentration, following Vegard's law.

  56. Synthesis of thermoelectric Bi-Sb alloy nanoparticles Reviewed

    Y. Tanaka, T. Itoh

    Abstracts of R'09 Twin World Congress     page: 78   2009.10

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    Binary Bi-Sb alloy is a material with an excellent thermoelectric performance in the low temperature region below 0 oC. It is a hopeful candidate material for thermoelectric power conversion using cold heat resource. Bi-Sb alloy is a complete solid solution. However, its synthesis is difficult in the fusion method due to gravity segregation, and its single crystal is very brittle. No segregation, high mechanical strength and low thermal conductivity are required for the thermoelectric Bi-Sb alloy. These properties can be achieved by making up a polycrystalline body from nanosized Bi-Sb alloy particles. In this study, we attempted to synthesize the nanoparticles of thermoelectric Bi-Sb alloy through a modified polyol process. Two kinds of materials, Bi( NO3)3.5H2O (1mmol) and SbCl3 (1mmol) were dissolved in tetraethyleneglycole (TEG, 20ml) as a solvent by sonicating. After the solution was bubbled with Ar gas and strongly agitated at room temperature, a reducing agent NaBH4 (320 mg) dissolved in TEG (10 ml) was added slowly, and the Bi-Sb alloy was synthesized by heating to 180 oC in Ar gas. The synthesized particles in the solution were settled by centrifugation, washed with ethanol and TEG, and dried under a vacuum. The syntheses of Bi-Sb alloy nanoparticles were also attempted in various experimental conditions. The reaction products were characterized by X-ray diffraction (XRD), and transmission electron microscopy (TEM). A single phase of Bi-rich Bi-Sb alloy was identified by XRD analysis. Agglomerate of the Bi-Sb alloy particles with nano-order size were confirmed by TEM observation.

  57. Synthesis of Higher Manganese Silicide by Pulse Discharge Sintering Method Reviewed

    M. Yoshikura, T. Itoh

    Abtsracts of R'09 Twin World Congress Nagoya Venue     page: 98   2009.10

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    Higher manganese silicide (HMS) is a promising thermoelectric material available to thermoelectric power generation using the disposed heat resources of 500 to 900K. Since both of Mn and Si as constituent elements in the manganese silicide are harmless and they exist in abundance as mineral resources, the manganese silicide can become a low-cost thermoelectric material with low-environmental load. Though combination of mechanical alloying (MA) and pulse discharge sintering (PDS), that is a conventional method, may be an effective method for synthesizing HMS compound, difference of loss ratios of Mn and Si during MA process causes problems of composition shifts and poor reproductivity. In this study, a new synthesizing method of HMS was attempted. Mn and Si powders (75μm, 99.9%) were individually ground by mechanical grinding (MG) with a planetary ball milling equipment at 400 rpm for 1h. The ground powders with particle size of 44μm or less were collected by sieving. The collected Mn and Si powders were mixed at the molar ratio of 1:1.73 (a composition ratio of HMS) with a rotary blender at 75 rpm for 1h. HMS compound was synthesized from the mixed powder and simultaneously sintered by PDS at 1173K for 15 min under 60 MPa. From XRD analysis of the material consolidated by the new method, HMS phase was detected as a main phase, but MnSi phase was also detected as well as the material obtained by the conventional method. The synthesis was carried out under various experimental conditions, and thermoelectric properties were measured.

  58. Influence of Carbon Nanotube Addition on Thermoelectric Properties of Skutterudite-type Cobalt Antimonide Compound Reviewed

    M. Tachikawa, T. Itoh

    Abstracts of R'09 Twin World Congress Nagoya Venue     page: 98   2009.10

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    Skutterudite-type cobalt antimonide compounds are well known as materials with good thermoelectric properties over temperature range of 300-600 oC. However, their thermal conductivity is relatively high, and lowering of the thermal conductivity is required for further improving thermoelectric performance. This study aims at lowering the lattice thermal conductivity by the phonon scattering induced from dispersing uniformly carbon nanotubes (CNTs) into the cobalt tri-antimonide compound. Powders of Co, Ni, Sb and Te were blended with molar ratios of n-type Co0.92Ni0.08Sb2.96Te0.04 compound, and the compound was synthesized through a pulse discharge sintering (PDS) process. After coarsely grinding the synthesized compound, CNTs were added into the compound powder at different fraction, and then the mixture was mechanically ground with a planetary ball milling equipment. The composite powder obtained by the mechanical grinding (MG) was compacted and sintered by PDS. Dispersion condition of CNTs was observed by scanning electron microscopy (SEM). Thermoelectric properties (Seebeck coefficient, electrical resistivity and thermal conductivity) of the sintered samples were measured. It was confirmed by SEM observation that the fibriform CNTs existed uniformly in the Co0.92Ni0.08Sb2.96Te0.04 compound matrix. The addition and dispersion of CNTs into the compound decreased the thermal conductivity, but increased the electrical resistivity.

  59. Synthesis of Thermoelectric Manganese Silicide by Mechanical Alloying and Pulse Discharge Sintering Reviewed

    T. Itoh and M. Yamada

    J. Electronic Materials   Vol. 38 ( 7 ) page: 925-929   2009.7

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    Manganese silicide is a candidate for low-cost thermoelectric materials with low-environmental load. In this research, MnSi1.73 compound was studied as a thermoelectric material available for the thermoelectric power generation using waste heat. Manganese and silicon powders were mechanically alloyed under three different conditions (at 200 rpm for 36 ks, at 400 rpm for 3.6 ks and at 400 rpm for 36 ks) with a planetary ball milling equipment. Then, the mechanical alloyed powder was consolidated by a pulse discharge sintering process. Phases of MnSi1.73 (primary phase) and MnSi were synthesized in mechanical alloying and pulse discharge sintering. Thermoelectric properties were dependent on the mechanical alloying condition. The sample mechanically alloyed at 400 rpm for 3.6 ks had the best thermoelectric performance. The maximum dimensionless figure of merit ZT of 0.47 was achieved at 873K.

  60. Thermoelectric Properties of Al-doped Mg2Si Compounds Prepared by Liquid-Solid Phase Reaction and Pulse Discharge Sintering Reviewed

    T. Itoh, M. Matsuno

    Abstracts of ICT2009     page: 187   2009.7

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    Dimagnesium silicide is a candidate for thermoelectric materials available for the thermoelectric power generation using waste heat. This material has advantages of the constituent elements in abundance in the earth's crust and of the nontoxicity of its processing by-products as an environmental symbiosis thermoelectric semiconductor. Mg2Si Compounds doped with Al from 0 to 0.2 mol% were synthesized from Al, Mg and Si powders by a liquid-solid phase reaction method. The compounds were sintered through a pulse discharge sintering process. Influence of Al content on thermoelectric properties of Mg2Si compounds was investigated. Although Al-doping decreased the absolute value of Seebeck coefficient and increased the thermal conductivity, it drastically decreased the electrical resistivity. The maximum dimensionless figure of merit of 0.47 at 509 oC was achieved in Mg2Si doped with 0.2 mol% Al.

  61. Syntheses of Ni-doped and Fe-doped CoSb3 Thermoelectric Nanoparticles through Modified Polyol Process Reviewed

    T. Itoh, K. Isogai

    Abstracts of 2009 MRS Spring Meeting   Vol. CD-ROM   page: N3.16   2009.4

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    Skutterudite CoSb3 compounds are of increasing interest as materials with good thermoelectric performance over the temperature range of 600 to 800 K, but the thermal conductivity of the materials is relatively high. Nanostructured materials have been shown to enhance phonon scattering and lower the thermal conductivity of the thermoelectric materials. We have investigated about the synthesis of binary CoSb3 nanoparticles through a modified polyol process. Partial substitution of Ni or Fe on the Co site of CoSb3 is a hopeful route for improving thermoelectric performance of the CoSb3 compounds. In the present work, synthesis of Ni-doped and Fe-doped CoSb3 nanoparticles through the modified polyol process was attempted and the optimum synthesizing condition was investigated. Co(OOCH3)2.4H2O, Ni(OOCH3)2.4H2O, FeCl3 and SbCl3, were prepared as precursors. The precursors were reduced by NaBH4 in tetraethyleneglycol at 513 K in argon gas, for different reaction time (holding time). The reaction products were characterized by the X-ray diffraction, the energy dispersive X-ray spectroscopy, and transmission electron microscopy. The nanoparticles with about 20 to 30 nm in size mainly existed in the reaction products regardless of the chemical composition and the reaction time. The skutterudite phase was identified as a main phase in the sample synthesized for long reaction time, but the other phases of Sb and MSb2 (M=Co, Ni, Fe) were also detected. The lattice parameter of the synthesized skutterudite phase linearly increased with increasing the doping agent concentration, following Vegard's law.

  62. 新たな手法による熱電発電用モジュールの作製とその特性評価 Reviewed

    生田裕二,伊藤孝至

    粉体および粉末冶金   Vol. 56 ( 1 ) page: 30-34   2009.1

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  63. 圧縮ねじり成形法によるBi-Sb-Te系熱電材料の固化と組織制御 Reviewed

    伊藤孝至, 門井 崇, 金武直幸

    日本金属学会誌   Vol. 73 ( 1 ) page: 1-6   2009.1

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  64. 液相-固相反応法によるマグネシウムシリサイド化合物の合成とその熱電特性 Reviewed

    松野光晴, 伊藤孝至

    粉体および粉末冶金   Vol. 56 ( 1 ) page: 26-29   2009.1

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  65. Thermoelectric Properties of Sintered Bodies Made of Synthesized CoSb3 Nanoparticles

    K. Isogai and T. Itoh

    Abstracts of The IUMRS International Coference in Asia 2008     page: CD-ROM UP-10   2008.12

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    CoSb3 based skutterudite compounds are the promising thermoelectric materials that have relatively good thermoelectric properties with respect to the Seebeck
    coefficient and the electrical resistivity over temperature range of 600-800 K. The high thermal conductivity of the materials, however, prevents from achieving high thermoelectric performance. Superfine
    grain structure made by sintering superfine particles is expected to lower the thermal conductivity by phonon scattering. In our previous work, we have reported the CoSb3 nanoparticles synthesis via a modified polyol process. In the present work, we focused at investigating the thermoelectric properties of the sintered bodies made of the synthesized CoSb3 nanoparticles. The CoSb3 nanoparticles were synthesized via the modified polyol process. Two reactants Co(OOCH3)2·4H2O and SbCl3 were mixed
    at a stoichiometric mole ratio of 1:3, and were reacted with a reducing agent NaBH4 in a solvent tetraethyleneglycol at 513 K. Then, the reaction products were sintered into bulk samples by a pulse discharge
    sintering (PDS) under several operating conditions. The synthesized nanoparticles and the sintered samples were
    characterized with respect to the synthesized phases, the particle size and the grain size. The Seebeck coefficient, the electrical resistivity and the thermal conductivity of the sintered samples were also measured. The nanoparticles with size about 20 to 30 nm mainly existed in the reaction products. The CoSb3 phase was identified, but the other phases of Sb and CoSb2 were also detected. It was found
    that the synthesis of CoSb3 is promoted by PDS process. In the sample sintered at 853K for 15min under 60MPa, the grains with size about 200nm mainly existed together with several tens nanometer sized grains. The thermal conductivity of the fine grain sized sample was sufficiently reduced compared with that of the sample
    synthesized and sintered by only PDS process.

  66. The effect of the sintering conditions and addition of fullerene on thermoelectric properties of Mg2Si

    M. Matsuno and T. Itoh

    Abstracts of The IUMRS International Coference in Asia 2008     page: CD-ROM UP-9   2008.12

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    Magnesium silicide (Mg2Si) is a promising material for thermoelectric energy conversion at intermediate temperature range. This material has advantages of the abundance of its constituent elements in the earth's crust and of the nontoxicity of its processing by-products as an environmentally friendly thermoelectric semiconductor. However, there are few research reports about this material for improving thermoelectric performance because of difficulty of its synthesis. In this study, Mg2Si was synthesized from Mg and Si by a liquid-solid phase reaction (LSPR) method, which is effective in synthesizing a compound from the two elements having sufficiently different melting points. The powder synthesized by LSPR method was compacted and then sintered by a pulse discharge sintering (PDS) process. All sintered samples indicated the nature of n-type semi-conductor over a measuring temperature range. The power factor of the sintered sample was, however, strongly affected by the sintering temperature and/or the sample density. The sample sintered at 1003 K for 30 min under 60MPa had the maximum power factor of about 0.11×10-2 mWm-1K-2 at 464 K. Mg2Si powder was mixed with fullerene by a planetary ball milling method, and then sintered by PDS process. In the samples sintered under the same sintering condition, the power factor decreased with fullerene addition, because the electrical resistivity considerably increased and/or the sample density decreased. It will be necessary to optimize the sintering conditions for attaining an effective result about the fullerene addition.

  67. Fabrication of Thermoelectric Module by A New Manufacturing Process and Its Performance

    Y. Ikuta and T. Itoh

    Abstracts of The IUMRS International Coference in Asia 2008     page: CD-ROM UP-8   2008.12

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    In the conventional production of the thermoelectric modules, process automation is difficult since the thermoelectric elements are produced by slicing only one at a time and the assembly of thermoelectric modules requires placement and attachment of the individual, and sometimes very small, thermoelectric elements. This leads to high production cost. Thus, new processing methods will be required for cost-effectively producing compact thermoelectric modules with a multitude of thermoelectric couples. In the present work, a new manufacturing process was attempted for producing the thermoelectric modules, and performances of the modules were evaluated. Powders of the p-type FeCo3Sb12 and the n-type Co0.92Ni0.08Sb2.96Te0.04 compounds were alternately filled into 4x4 square holes of an insulating mold. The powders in the holes were compacted and sintered simultaneously at 900 K in vacuum for 20 min under the isostatic pressure of 60 MPa. In sintering, a pseudo hot isostatic pressing (pseudo HIP) method, in which one-directional load is transmitted isostatically to the sample through the alumina powder filled around the sample, were used to prevent the mold from breaking. The sintered elements in the mold were electrically connected in series using silver paste. Then, a thermoelectric module was constructed by parallel sandwiching the mold with glass plates of 0.5mm in thickness. The hot side of the module was heated up to 796 K, and the cold side was
    cooled by water. Under this condition, the thermoelectric performance was evaluated. The maximum open voltage was 561 mV at the maximum temperature difference of 356 K, and the internal resistance in the module was 1.74 Ω. In this case, the output power of 50.1 mW was obtained and the power density of 51.1 mW/cm2 was estimated. The value of output power was less than that of the theoretical calculation. This can be attributed to the high internal resistance due to the low sintering density of each thermoelectric element.

  68. Thermoelectric Properties of Sintered Bodies Made of Synthesized CoSb3 Nanoparticles

    K. Isogai and T. Itoh

    Abstracts of The IUMRS International Coference in Asia 2008     page: CD-ROM UP-10   2008.12

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    CoSb3 based skutterudite compounds are the promising thermoelectric materials that have relatively good thermoelectric properties with respect to the Seebeck coefficient and the electrical resistivity over temperature range of 600-800 K. The high thermal conductivity of the materials, however, prevents from achieving high thermoelectric performance. Superfine grain structure made by sintering superfine particles is expected to lower the thermal conductivity by phonon scattering. In the present work, we focused at investigating the thermoelectric properties of the sintered bodies made of the synthesized CoSb3 nanoparticles. The CoSb3 nanoparticles were synthesized via the modified polyol process. Two reactants Co(OOCH3)2·4H2O and SbCl3 were mixed at a stoichiometric mole ratio of 1:3, and were reacted with a reducing agent NaBH4 in a solvent tetraethyleneglycol at 513 K. Then, the reaction products were sintered into bulk samples by a pulse discharge sintering (PDS) under several operating conditions. The nanoparticles with size about 20 to 30 nm mainly existed in the reaction products. The CoSb3 phase was identified, but the other phases of Sb and CoSb2 were also detected. It was found that the synthesis of CoSb3 is promoted by PDS process. In the sample sintered at 853K for 15min under 60MPa, the grains with size about 200nm mainly existed together with several tens nanometer sized grains. The thermal conductivity of the finegrain sized sample was sufficiently reduced compared with that of the sample synthesized and sintered by only PDS process.

  69. Fabrication of Thermoelectric Module by A New Manufacturing Process and Its Performance

    Y. Ikuta and T. Itoh

    Abstracts of The IUMRS International Coference in Asia 2008     page: CD-ROM UP-8   2008.12

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    In the conventional production of the thermoelectric modules, process automation is difficult since the thermoelectric elements are produced by slicing only one at a time and the assembly of thermoelectric modules requires placement and attachment of the individual, and sometimes very small, thermoelectric elements. This leads to high production cost. Thus, new processing methods will be required for cost-effectively producing compact thermoelectric modules with a multitude of thermoelectric couples. In the present work, a new manufacturing process was attempted for producing the thermoelectric modules, and performances of the modules were evaluated. Powders of the p-type FeCo3Sb12 and the n-type Co0.92Ni0.08Sb2.96Te0.04 compounds were alternately filled into 4x4 square holes of an insulating mold. The powders in the holes were compacted and sintered simultaneously at 900 K in vacuum for 20 min under the isostatic pressure of 60 MPa. In sintering, a pseudo hot isostatic pressing (pseudo HIP) method were used to prevent the mold from breaking. The sintered elements in the mold were electrically connected in series using silver paste. Then, a thermoelectric module was constructed by parallel sandwiching the mold with glass plates of 0.5mm in thickness. The hot side of the module was heated up to 796 K, and the cold side was cooled by water. The maximum temperature difference between the hot and cold sides was 356 K. The maximum open voltage was 561 mV at the maximum temperature difference of 356 K, and the internal resistance in the module was 1.74 . The output power of 50.1 mW was obtained and the power density of 51.1 mW/cm2 was estimated. The value of output power was less than that of the theoretical calculation. This can be attributed to the high internal resistance due to the low sintering density of each thermoelectric element.

  70. The effect of the sintering conditions and addition of fullerene on thermoelectric properties of Mg2Si

    M. Matsuno and T. Itoh

    Abstracts of The IUMRS International Coference in Asia 2008     page: CD-ROM UP-9   2008.12

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    Magnesium silicide (Mg2Si) is a promising material for thermoelectric energy conversion at intermediate temperature range. This material has advantages of the
    abundance of its constituent elements in the earth's crust and of the nontoxicity of its processing by-products as an environmentally friendly thermoelectric semiconductor. However, there are few research reports about this material for improving thermoelectric performance because of difficulty of its synthesis. In this study, Mg2Si was synthesized from Mg and Si by a liquid-solid phase reaction (LSPR) method, which is effective in synthesizing a compound from the two elements having sufficiently different melting points. Firstly, the influence of sintering conditions on the thermoelectric properties of Mg2Si was investigated. The powder synthesized by LSPR method was compacted and then sintered by a pulse discharge sintering (PDS) process. Thermoelectric properties, that is, Seebeck coefficient, electrical resistivity and thermal conductivity of each sintered sample were measured at temperature of 300 to 900 K. All sintered samples indicated the nature of n-type semiconductor over a measuring temperature range. The power factor of the sintered sample was, however, strongly affected by the sintering temperature and/or the sample density. The sample sintered at 1003 K for 30 min under 60MPa had the maximum power factor of about 0.11×10-2 mWm-1K-2 at 464 K. This value is higher than the previous report. Secondly, we attempted to add and disperse the fullerene nanoparticles into Mg2Si compound for lowering the thermal conductivity according to the knowledge obtained in our previous work. Mg2Si powder was mixed with fullerene by a planetary ball milling method, and then sintered by PDS process. In the samples sintered under the
    same sintering condition, the power factor decreased with fullerene addition, because the electrical resistivity considerably increased and/or the sample density decreased.

  71. Synthesis of Co1-xNixSb3 Thermoelectric Nanoparticles

    K. Isogai, T. Itoh and K. Kitagawa

    Abstracts of The 14th International Symposium on Advanced Technology and Applications (ATA)     page: 42   2008.11

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    Cobalt-antimony skutterudite compounds have a relatively high power factor over a temperature range of 600 to 800 K, but its thermal conductivity is relatively high. Nanostructuring is expected to lower the lattice thermal conductivity by grain boundary phonon scattering, improving the thermoelectric performance of the materials. Partial substitution of Ni on the Co site of CoSb3 is a hopeful route for obtaining n-type CoSb3-based skutterudite. In the present work, synthesis of Co1-xNixSb3 thermoelectric nanoparticles by the modified polyol process was attempted and the optimum synthesizing condition was investigated. Co(OOCH3)2&#903;4H2O, Ni(OOCH3)2&#903;4H2O and SbCl3 were mixed at the desired composition of x<0.1, and they were reduced by NaBH4 in tetraethyleneglycol at 513 K in an atmosphere of argon gas, for different reaction time (holding time). The nanoparticles of sizes ranging from about 20 to 30 nm mainly existed in the reaction products regardless of the composition and the reaction time. The skutterdite phase is identified as the main phase in the sample synthesized for the longer reaction time, but the other phases of Sb and MSb2 (M=Co, Ni) are also detected. The lattice constant of the synthesized skutterudite phase was almost linearly increased with Ni content. This is in good agreement with the Vegard's law.

  72. Synthesis of Co1-xNixSb3 Thermoelectric Nanoparticles Reviewed

    K. Isogai, T. Itoh and K. Kitagawa

    Abstracts of The 14th International Symposium on Advanced Technology and Applications (ATA)     page: 42   2008.11

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    Cobalt-antimony skutterudite compounds have a relatively high power factor over a temperature range of 600 to 800 K, but its thermal conductivity is relatively high. Nanostructuring is expected to lower the lattice thermal conductivity by grain boundary phonon scattering, improving the thermoelectric performance of the materials. In our previous work, we have reported about the synthesis of p-type CoSb3 nanoparticles via a modified polyol process. Partial substitution of Ni on the Co site of CoSb3 is a hopeful route for obtaining n-type CoSb3-based skutterudite. In the present work, synthesis of Co1-xNixSb3 thermoelectric nanoparticles by the modified polyol process was attempted and the optimum synthesizing condition was investigated. Co(OOCH3)2&#903;4H2O, Ni(OOCH3)2&#903;4H2O and SbCl3 were mixed at the desired composition of x<0.1, and they were reduced by NaBH4 in tetraethyleneglycol at 513 K in an atmosphere of argon gas, for different reaction time (holding time). The reaction products were characterized by the X-ray diffraction, the energy dispersive X-ray spectroscopy, and transmission electron microscopy.The nanoparticles of sizes ranging from about 20 to 30 nm mainly existed in the reaction products regardless of the composition and the reaction time. The skutterdite phase is identified as the main phase in the sample synthesized for the longer reaction time, but the other phases of Sb and MSb2 (M=Co, Ni) are also detected. The lattice constant of the synthesized skutterudite phase was almost linearly increased with Ni content. This is in good agreement with the Vegard's law.

  73. Synthesis of Thermoelectric Manganese Silicide by Mechanical Alloying and Pulse Discharge Sintering

    T. Itoh and M. Yamada

    Abstracts of ICT2008 (27th International Conference on Thermoelectric)     page: 53   2008.8

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    Global energy and environmental issues are problems to be urgently solved. Thermoelectric power generation is a hopeful method to decrease dependence of fossil fuels and to promote the environmental safeguards. In this research, manganese silicide MnSi1.73 was focused as one of the promising thermoelectric materials available to the thermoelectric power generation using the disposed heat resources of 500 to 900K. Since both of Mn and Si as constituent elements in the manganese silicide are harmless and they exist in abundance as mineral resources, the manganese silicide can become a low-cost thermoelectric material with low-environmental load. Raw powders of manganese and silicon were mechanically alloyed through a planetary ball milling under the different milling time and the different rotating speed. Then the mechanical alloyed powder was consolidated through a pulse discharge sintering process (at 1023 K for 20 min in vacuum under a pressure of 100 MPa). The manganese silicide phases of MnSi1.73 (primary phase) and MnSi were synthesized in mechanical alloying and pulse discharge sintering. The thermoelectric properties were dependent on an XRD intensity ratio of MnSi1.73 to MnSi. The maximum dimensionless figure of merit ZT of 0.47 was achieved at 873K.

  74. Effect of Combined Addition of Silicon Carbide Whiskers and Fullerene Nanoparticles on Properties of Thermoelectric Zinc Antimonide Reviewed

    T. Itoh, N. Asari, N. Kanetake, A. Okada

    Mater. Res. Soc. Symp. Proc.   Vol. 1044   page: 265-272   2008.4

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    Thermoelectric power generation is a hopeful method harnessing waste thermal energy particularly covering a middle temperature range between 500 and 800 K. A Zn4Sb3 compound is a promising "phonon glass electron crystal" material applicable to thermoelectric power generation around 700 K. This material, however, has a problem of its brittleness. In this research, the silicon carbide whiskers were added into the Zn4Sb3 compound for overcoming the brittleness, and the fullerene nanoparticles were also added for improving the thermoelectric performance. The Zn4Sb3 compound was synthesized from mixture of pure zinc and antimony powders by a liquid-solid phase reactions method. Firstly, the synthesized compound powder was mixed with the fullerene nanoparticles. The planetary ball milling method was used in order to disentangle the fullerene agglomerate and to obtain a uniform mixture. Subsequently, the mixture was uniformly mixed with the SiC whiskers by the planetary ball milling. The final mixture was consolidated by the pulse discharge sintering. The synthesized phases were identified by XRD. The morphology of the whiskers after mixing was observed. The flexural strength and the thermoelectric properties of the sintered samples were measured. The length of SiC whiskers and the flexural strength were decreased with the mixing time. Though the addition of SiC whiskers lowered the thermoelectric performance, the combined addition of SiC whiskers and fullerene nanoparticles restored the performance especially through a decrease of the thermal conductivity owing to the phonon scattering.

  75. Thermoelectric Properties of β-Zn<SUB>4</SUB>Sb<SUB>3</SUB> Synthesized by Mechanical Alloying and Pulse Discharge Sintering Reviewed

    T. Itoh, J. Shan and K. Kitagawa

    J. Propulsion and Power   Vol. 24 ( 2 ) page: 353-358   2008.3

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    Thermoelectric power generation is a hopeful method for harnessing waste thermal energy, particularly covering a middle temperature range between 500 and 800 K. A β-Zn<SUB>4</SUB>Sb<SUB>3</SUB> compound has become the focus of attention as a thermoelectric material applicable to thermoelectric power generation around 700 K. In this research, a method combining the mechanical allying with the pulse discharge sintering was adopted to obtain the sintered compact of β-Zn<SUB>4</SUB>Sb<SUB>3</SUB>. Pure zinc and antimony powders were used as the starting material for mechanical alloying. These powders were mixed in the stoichiometry ratio of 4 to 3, or more Zn-rich. The mechanical alloying was carried out by planetary ball milling under conditions of fixed revolution speed and variable milling time. The influence of the milling time on the synthesis of β-Zn<SUB>4</SUB>Sb<SUB>3</SUB> was investigated. The sintering was executed at two sintering temperatures and under fixed conditions of sintering time, pressing pressure, and atmosphere. The influences of the sintering temperature of pulse discharge sintering on the polycrystalline grain size and the thermoelectric properties were also studied. The following results were clarified. The phases of ZnSb and Zn are easily obtained by mechanical alloying for 50 h or longer time. These phases change to a single phase of β-Zn<SUB>4</SUB>Sb<SUB>3</SUB> through pulse discharge sintering under the optimum condition of Zn-rich mixing. The sintered compact of β-Zn<SUB>4</SUB>Sb<SUB>3</SUB> with 1.17 of nondimensional figure of merit can be obtained at 673 K with the proposed mechanical alloying with pulse discharge sintering method.

  76. Thermoelectric Properties of Iron-and Lanthanum-Doped CoSb<SUB>3</SUB> Compounds by Pulse Discharge Sintering Reviewed

    T. Itoh, E. Hattori and K. Kitagawa

    J. Propulsion and Power   Vol. 24 ( 2 ) page: 359-364   2008.3

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    More than 60% of thermal energy generated through various combustion systems is discharged as waste heat into the atmosphere. Using the waste heat effectively is among the most important issues from a viewpoint of the depletion
    of fossil fuels. In this regard, thermoelectric power generation that can directly convert the thermal energy to
    electrical energy is one of the attractive methods. Skutterudite compounds of CoSb<SUB>3</SUB> have been investigated as promising candidate materials for thermoelectric power generation. In this research, CoSb<SUB>3</SUB> compounds were synthesized from raw metal powders by using a pulse discharge sintering process. To improve the thermoelectric properties, iron was doped as an element substituting for cobalt of the CoSb<SUB>3</SUB> compound. The syntheses of Fe<SUB>x</SUB>Co<SUB>1-x</SUB>Sb<SUB>3</SUB> were confirmed by x-ray diffraction analysis. The Seebeck coefficient, electric resistivity, and thermal conductivity were measured as the thermoelectric properties. Optimum content of iron was decided from the maximum thermoelectric figure of merit. Furthermore, filling of lanthanum into Fe<SUB>0.1</SUB>Co<SUB>0.9</SUB>Sb<SUB>3</SUB> was attempted to decrease the thermal conductivity. The lanthanum-filled Fe<SUB>0.1</SUB>Co<SUB>0.9</SUB>Sb<SUB>3</SUB> compounds were synthesized from raw metal powders and LaSb powder by the pulse discharge sintering process. The optimum lanthanum content that leads to the maximum thermoelectric performance is discussed. The substitution of iron for cobalt improved the thermoelectric performance. The lanthanum-filling decreased the thermal conductivity at a low lanthanum content and led to higher thermoelectric performance in spite of low lanthanum content.

  77. Effect of Acid Treatment on Removing Sodium Ions from Sodium Cobalt Oxide Thermoelectric Materials

    R. Watanabe, T. Itoh, K. Kitagawa

    Proc. of International Symposium on EcoTopia Science 2007     page: CD-ROM 23P01-13 (1100)   2007.11

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    Na<SUB>x</SUB>Co<SUB>2</SUB>O<SUB>4</SUB> with a laminar structure is a promising thermoelectric oxide having anisotropic thermoelectric property. An excellent thermoelectric performance equivalent to the single crystal is expected to be attainable in the polycrystalline body of this material by improvement of crystal orientation. It will be effective for controlling the crystal orientation to separate CoO<SUB>2</SUB> nanosheets from the polycrystalline body and to pile them up for making highly orientated layers. This study aims at preparation of the CoO<SUB>2</SUB> nanosheets. First, samples of Na<SUB>x</SUB>Co<SUB>2</SUB>O<SUB>4</SUB> were synthesized. The interlayer Na<SUP>+</SUP> ions were removed from the CoO<SUB>2</SUB> layers of the synthesized powder by an acid treatment. The interlayer distance of the synthesized and the Na<SUP>+</SUP> ion removed samples was measured by XRD analysis. The removal efficiency of Na+ ions was evaluated from ICP measurement. The morphology of the samples was observed by a SEM. We found that the condition of the acid treatment greatly influences the removal efficiency of Na<SUP>+</SUP> ions in the synthesized Na<SUB>x</SUB>Co<SUB>2</SUB>O<SUB>4</SUB>.

  78. Polyol Process Synthesis of CoSb<SUB>3</SUB> Termoelectric Nanoparticles Reviewed

    K. Isogai, T. Itoh

    Proc. of International Symposium on EcoTopia Science 2007     page: CD-ROM 23P01-15 (1122)   2007.11

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    The cobalt-antimony skutterdite compounds have relatively high power factor at around 380 <SUP>o</SUP>C, but they have relatively high thermal conductivity. Nanostructuring is expected to lower the lattice thermal conductivity by phonon scattering on the grain boundary, improving the thermoelectric performance of the materials. In this study, we aim at synthesizing CoSb<SUB>3</SUB> thermoelectric nanoparticles by using polyol process for constructing the nanostructural body of the materials. The polyol process that synthesizes nanoparticles is one of liquid-phase process using polyol as a solvent. The CoSb<SUB>3</SUB> nanoparticles were syn-thesized in mole ratio of Co(OOCH<SUB>3</SUB>)&#903;4H<SUB>2</SUB>O to SbCl<SUB>3</SUB> of 1:4.5 at reaction temperature of 240 <SUP>o</SUP>C in the sol-vent of tetra ethylene glycol. The reaction products were characterized by XRD, EDX, SEM, and TEM. Extremely small particles with about 10 nm in diameter mainly existed in the reaction products. The minimum particle size was 3-5 nm. The nanoparticles were identified as the CoSb<SUB>3</SUB> compounds.

  79. Influence of Fullerene Addition on Thermoelectric Properties of Non-filled/Filled Cobalt-Skutterudite Compounds Reviewed

    K. Ishikawa, A. Okada, T. Itoh

    Proc. of International Symposium on EcoTopia Science 2007     page: CD-ROM 23P01-14 (1101)   2007.11

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    The cobalt-skutterudite compounds are promising thermoelectric materials having relatively good thermoelectric properties with respect to the Seebeck coefficient and the electrical resistivity over the temperature range between 500 and 800K. The high thermal conductivity of the materials, however, prevents from achieving high thermoelectric performance. In this study, we attempted to disperse the fullerene particles uniformly into the cobalt-skutterudite compounds for decreasing the lattice thermal conductivity by phonon scattering. The influence of the fullerene addition on the thermoelectric properties was investigated with respect to both of the n-type non-filled and filled cobalt-skutterudite compounds. The n-type lanthanum-filled cobalt-skutterudite compound was synthesized via the route of mechanical alloying-pulse discharge sintering process. In both of the non-filled and the filled skutterudite samples, the thermal conductivity was decreased with the addition of fullerene. For the non-filled skutterudite, though the electrical resistivity of the samples was increased with the addition of fullerene, the thermoe-lectric performance was improved.

  80. Consolidation and Microstructure Control of Bismuth Telluride Thermoelectric Compounds by Compressive Torsion Forming Reviewed

    T. Itoh, T. Kadoi and N. Kanetake

    Materials Transactions   Vol. 48 ( 8 ) page: 2056-2061   2007.8

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    Bismuth antimony telluride has the best performance among the p-type thermoelectric materials used in the range of temperature between 300K and 500K. This material has a trigonal-hexagonal scalenohedral crystal structure and the cleavage parallel to the basal plane of the crystal can readily occur. Suppression of the electrical resistivity and the thermal conductivity will be effective for further
    improvement of the performance of the thermoelectric elements made from this material. The compressive torsion forming is the severe plastic deformation technique, in which the loads of compression and distortion are simultaneously subjected to the materials without change in its shape. In this work, we applied this technique to the powder of bismuth antimony telluride for consolidation and improvement of the thermoelectric performance by refining the grain structure and by controlling the crystal orientation. The samples consolidated under various forming conditions were investigated with respect to density, microstructure, XRD, texture, and thermoelectric properties. It was found out that the compressive torsion forming is effective for the microstructure control, the grain structure less than
    10μm can be obtained, and the thermoelectric performance is
    obviously improved by the compressive torsion forming.

  81. *Effect of Fullerene Addition on Thermoelectric Properties of n-type Skutterudite Compound Reviewed

    T. Itoh, K. Ishikawa, and A. Okada

    Journal of Materials Research   Vol. 22 ( 1 ) page: 249-253   2007.1

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  82. Prediction of Packing Density of Milled Powder Based on Packing Simulation and Particle Shape Analysis Reviewed

    Y. Amano, T. Itoh, H. Terao and N. Kanetake

    Materials Science Forum   Vol. 534-536   page: 1621-1624   2007.1

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  83. Fabrication of the Crystal-Oriented Thermoelectric Material Bi<SUB>2</SUB>Te<SUB>3</SUB> by Slip Casting under a High Magnetic Field Reviewed

    T. Kuribayashi, M. Sung, T. Itoh, K. Sassa, and S. Asai

    Materials Transactions   Vol. 47 ( 9 ) page: 2387-2392   2006.9

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  84. Prediction of Packing Density of Milled Powder Based on Packing Simulation and Particle Shape Analysis Reviewed

    Y. Amano, T. Itoh, H. Terao, and N. Kanetake

    Extended Abstracts 2006 World Congress on Powder Metallurgy & Particulate Materials, KPMI     page: 1254-1255   2006.9

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  85. Performance of Segmented Thermoelectric Elements Fabricated by Simultaneous Sintering Method Reviewed

    T. Itoh, T. Muto, and K. Kitagawa

    Proceedings 25th International Conference on Thermoelectric, IEEE   ( CD-ROM ) page: PB48   2006.8

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  86. アルミニウムの結晶粒微細化に及ぼす圧縮ねじり複合負荷の効果 Reviewed

    金武直幸,青野圭太郎,伊藤孝至,久米裕二

    軽金属   Vol. 56 ( 1 ) page: 34-38   2006.1

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  87. Fabrication of Segmented n-type CoSb<SUB>3</SUB>/Bi<SUB>2</SUB>Te<SUB>3</SUB> Thermoelectric Module and Its Performance Reviewed

    T. Muto, T. Itoh, N. Kanetake and K. Kitagawa

    Extended Abstracts International Symposium on EcoTopia Science 2005     page: 587-588   2005.8

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  88. Syntheses of Fe and La Doped CoSb<SUB>3</SUB> Thermoelectric Compounds by Pulse Discharge Sintering Reviewed

    T. Itoh, E. Hattori and K. Kitagawa

    Extended Abstracts International Symposium on EcoTopia Science 2005     page: 219-220   2005.8

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  89. Fabrication of Segmented p-type AgSbTe<SUB>2</SUB>/Sb<SUB>2</SUB>Te<SUB>3</SUB>/Bi<SUB>0.4</SUB>Sb<SUB>1.6</SUB>Te<SUB>3</SUB> Thermoelectric Module and Its Performance Reviewed

    T. Muto, K. Tokuda, T. Itoh and K. Kitagawa

    Proceedings 24th International Conference on Thermoelectrics, IEEE     page: 521-524   2005.6

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  90. Thermoelectric Properties of beta- Zn4Sb3 Synthesized by MA- SPS Method Reviewed

    T. Itoh, J. Shan and K. Kitagawa

    Proceedings The 2nd International Energy Conversion Engineering Conference (IECEC2004), AIAA     page: AIAA-2004-5564   2004.8

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  91. Synthesis of CoSb<SUB>3</SUB> compound and its thermoelectric properties Reviewed

      Vol. 51 ( 6 ) page: 441-446   2004.6

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  92. 米国粉末冶金界が求める技術情報の変遷と軟磁性に及ぼす焼結組織の影響 Reviewed

    鰐部吉基,草加勝司,横山誠二,伊藤孝至

    粉体および粉末冶金   Vol. 51 ( 6 ) page: 458-461   2004.6

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  93. Multi-layer coating of SiC, Al<SUB>2</SUB>O<SUB>3</SUB> and glaze on C/C composites for oxidation resistance at high temperature Reviewed

    Q. Shen, J. Shan, T. Itoh, K. Kitagawa

    Journal of the Japan Society of Powder and Powder Metallurgy   Vol. 51 ( 4 ) page: 237-241   2004.4

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  94. Fabrication of segmented p-type AgSbTe<SUB>2</SUB> - (Bi,Sb)<SUB>2</SUB>Te<SUB>3</SUB> thermoelectric module and its Performances Reviewed

      Vol. 51 ( 1 ) page: 10-15   2004.1

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  95. Fabrication of Layered p-type AgSbTe<SUB>2</SUB>-(Bi,Sb)<SUB>2</SUB>Te<SUB>3</SUB> thermoelectric module and its performance (jointly authored) Reviewed

    M. Kobo, T. Itoh, K. Tokuda, J. Shan and K. Kitagawa

    Proceedings of 2003 International Conference on Thermoelectrics, International Thermoelectric Society     page: 429-432   2003.8

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  96. Formation of an Environmental Barrier Coating Using DC-RF Hybrid Plasma Reviewed

    A. Otsuka, M. Yamamoto, T. Itoh, K. Kitagawa and S. Hirano

    Journal of American Ceramic Society   Vol. 86 ( 7 ) page: 1068-1075   2003.7

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  97. Microstructural Dependency of Soft Magnetism in a Sintered Stainless Fe-12%Cr Alloy Reviewed

    Y.Wanibe,T. Itoh and K. Kusaka

    Advances in Powder Metallurgy & Particulate Materials -2003, MPIF   ( 7 ) page: 14-27   2003.6

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  98. Quantitative Assesment of Pores Reviewed

    J. Jpn Soc. Powder and Powder Metallurgy   Vol. 49 ( 6 ) page: 541-544   2002.6

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  99. Microstructural Characterizations of Pores and Grains for Specific Properties in P/M Soft Magnetic Materials Reviewed

    T.Itoh, K.Kusaka and Y.Wanibe

    Advances in Powder Metallurgy & Particulate Materials -2002, MPIF   ( 14 ) page: 113-122   2002.6

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  100. Automotive PMSoftMagnetic Alloys (Relation between Magnetic Properties and Residual Pores in PM Soft Magnetic Alloys) Reviewed

    J. Jpn Soc. Powder and Powder Metallurgy   Vol. 49 ( 5 ) page: 430-437   2002.5

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  101. Quantitative Assessment of Pores to Reduce Variations in Component Characteristics Reviewed

    Y.Wanibe,T. Itoh, S. Yokoyama and K. Kusaka

    Advances in Powder Metallurgy & Particulate Materials -2001, MPIF   ( 11 ) page: 1-9   2001.5

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  102. Quantitative Evaluation of Pores for Improvement in the Characteristics Properties of Soft Magnetic Materials Reviewed

      Vol. 72 ( 2 ) page: 71-75   2001.2

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  103. Achievements in New Quantitative Approach to Powder Technology Invited Reviewed

    Y.Wanibe and T.Itoh

    Journal of the Japan Society of Powder and Powder Metallurgy   Vol. 47 ( 12 ) page: 1291-1299   2000.12

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  104. Characterization of Pores for Specific Properties in P/M Soft Magnetic Materials Reviewed

    T.Itoh, K.Kusaka and Y.Wanibe

    Proceedings Powder Metallurgy World Congress & Exhibition 2000, Jpn. Soc. of Powder and Powder Metallurgy   Vol. 2   page: 1364-1367   2000.12

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  105. Shape Separation of Powder Particles and Simulation Reviewed

    T.Itoh and Y.Wanibe

    Proceedings Powder Metallurgy World Congress & Exhibition 2000, Jpn. Soc. of Powder and Powder Metallurgy   Vol. 1   page: 429-432   2000.11

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  106. Simulation for Estimation of Morphology of Projected Image from Sectioned Image of Iron Powder Particles Reviewed

    T.Itoh and Y.Wanibe

    Advances in Powder Metallurgy & Particulate Materials -2000, MPIF   ( 1 ) page: 119-128   2000.6

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  107. Particle Shape Classification Useful for P/M Powders Reviewed

    Journal of the Japan Society of Powder and Powder Metallurgy   Vol. 46 ( 9 ) page: 914-920   1999.9

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  108. Measurement and Simulation of Morphological Characteristics on Projected and Sectioned Images of Iron Powder Particles Reviewed

    T.Itoh and Y.Wanibe

    Advances in Powder Metallurgy & Particulate Materials -1999, MPIF   Vol. 12   page: 139-149   1999.6

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  109. Relationship between Compacting Behaviors and Morphological Characteristics for Metallic Powders Reviewed

    T.Itoh and Y.Wanibe

    Journal of the Japan Society of Powder and Powder Metallurgy   Vol. 46 ( 1 ) page: 16   1999.1

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  110. Mutual Relation between Distributions Based on Number and Mass in The Particle Size-Shape Dispersion Diagram Reviewed

    T.Itoh and Y.Wanibe

    Journal of the Japan Society of Powder and Powder Metallurgy   Vol. 45 ( 6 ) page: 574-580   1998.6

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  111. Qunatitative Analysis of Fluidity and Packing Based on Morphology of Powder Particles

    Current Advances in Materials and Processes   Vol. 10 ( 5 ) page: 1062-1066   1997.9

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  112. 粉末プロセシングにおける定量評価

    鰐部吉基, 伊藤孝至

    鉄鋼の粉末冶金における新しい展開, 日本鉄鋼協会     page: 32-38   1997.9

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  113. Random Packing Simulation of Spheres and Practical Application for Real Powders Reviewed

    T.Itoh and Y.Wanibe

    Proceedings International Workshop on Modeling of Metal Powder Forming Processes     page: 169-178   1997.7

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  114. Morphological Characterization of Iron Powders and The Estimating of Density Through Random Packing Simulation Reviewed

    T. Itoh and Y. Wanibe

    Advances in Powder Metallurgy & Particulate Materials -1996, MPIF   Vol. 1 ( 4 ) page: 41-51   1996.6

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  115. The Effect of Particle Size Distribution of Metallic Powder on the Conductivity of Thermosetting Conductive Paste Reviewed

    Journal of the Japan Society of Powder and Powder Metallurgy   Vol. 42 ( 10 ) page: 1099-1102   1995.10

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  116. A New Method for Quantitative Analysis about Morphology(Size and Shape)of Inclusion in Metals

    "Now Stand and Prospect on The Estimating Technique of Inclusion in Metals", The Japan Institute of Metals     page: 28-31   1995.9

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  117. Analysis on Packed Mixtures of Short Fibers and Powders by their Characterized Specifics of Morphology Reviewed

    T.Itoh, Y.Wanibe and K.kuroda

    Journal of the Japan Society of Powder and Powder Metallurgy   Vol. 42 ( 9 ) page: 992-997   1995.9

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  118. Application of new techniques for characterization of non-metallic inclusions in steel Reviewed

    Y.Wanibe, T.Itoh, K.Umezawa, H.Nagahama and Y.Nuri

    Steel Research   Vol. 65 ( 4 ) page: 172-177   1995.4

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  119. Effect of Particle Characteristics on Fluidity of Metallic Powders (jointly authored) Reviewed

    T.Itoh and Y.Wanibe

    Journal of the Japan Society of Powder and Powder Metallurgy   Vol. 41 ( 9 ) page: 1111-1116   1994.9

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  120. Characterization of Short Fibers and Packing Densities of Its Mixtures with Powders Reviewed

    T.Itoh and Y.Wanibe

    Advances in Powder Metallurgy & Particulate Materials -1994, MPIF   Vol. 2   page: 113-126   1994.5

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  121. Quantitative Characterization in Powder Processing Reviewed

      Vol. 65 ( 2 ) page: 135-144   1994.4

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  122. A Study on Quantitative Analysis in Powder and Powder Processing (jointly authored) Reviewed

    T.Itoh and Y.Wanibe

    Journal of the Japan Society of Powder and Powder Metallurgy   Vol. 41 ( 3 ) page: 215   1994.3

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  123. New methodology for the determination of mass transport rate from rotating disks and/or cylinders in Liquid Reviewed

    Y.Wanibe, E.Boschatzke, F.Oeters and T.Itoh

    Steel Research   Vol. 64 ( 2 ) page: 58   1994.2

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  124. Size Distributions Determined on Random Plane Sections of Non-Spherical Particles Reviewed

    Y.Wanibe, T.Itoh, Y.Terada and T.Ohara

    Journal of the Japan Society of Powder and Powder Metallurgy   Vol. 40 ( 11 ) page: 1113-1116   1993.11

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  125. Shape Function of Non-Spherical Particles for the Determination of the Size Distributions from Measurements Made on the Random Plane Sections Reviewed

    Y.Wanibe, T.Itoh, Y.Terada and T.Ohara

    Journal of the Japan Society of Powder and Powder Metallurgy   Vol. 40 ( 11 ) page: 1109-1112   1993.11

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  126. Comparison between the Size Distribution Determined on Random Plane Sections and Projected Shadows of Non-Spherical Particles Reviewed

    Y.Wanibe, T.Itoh, Y.Terada and T.Ohara

    Journal of the Japan Society of Powder and Powder Metallurgy   Vol. 40 ( 11 ) page: 1117-1120   1993.11

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    Language:English   Publishing type:Research paper (scientific journal)  

  127. Estimation of Density in Packed Beds of Non-Spherical Particles through New Modeling Reviewed

    T.Itoh and Y.Wanibe

    Proceedings 1993 Powder Metallurgy World Congress, Jpn. Soc. of Powder and Powder Metallurgy   Vol. 1   page: 319-322   1993.7

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  128. Size Distribution of Non-Spherical Objects From Measurements Made on Random Plane Sections and of Projected Shadows Reviewed

    Y.Wanibe and T.Itoh

    Proceedings 1993 Powder Metallurgy World Congress, Jpn. Soc. of Powder and Powder Metallurgy   Vol. 1   page: 1063-1066   1993.7

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  129. Analysis in Size Distribution of Non-Spherical Particles from Measurement Made on the Random Plane Sections

    Y.Wanibe and T.Itoh

      Vol. 11432   page: 化II-1-19   1993.6

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  130. Quantitative Analysis in Heterogeneous Materials and Processing

    Y.Wanibe and T.Itoh

      Vol. 11323   page: 反応-764   1992.5

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  131. Particle size-shape dispersion diagram and its application for the packing densities of metallic powders Reviewed

    T.Itoh and Y.Wanibe

    Preprints '5th European Symposium Particle Characterization'   Vol. 2   page: 691-701   1992.3

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  132. Quantitative analysis in heterogeneous materials and processing Reviewed

    Y.Wanibe and T.Itoh

    Preprints '5th European Symposium Particle Characterization'   Vol. 1   page: 243-257   1992.3

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  133. 分散粒子の諸特性(粒度・形状及びそれらの分布幅)が粒子挙動(充填密度)に及ぼす影響量について

    鰐部吉基, 伊藤孝至

    日本学術振興会第19委員会資料     page: 介在物-62   1992.2

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  134. Impact Atomization of Liquid Metals Reviewed

    Y.Wanibe, T.Itoh and Y.Matsui

    International Journal of Powder Metallurgy   Vol. 27 ( 3 ) page: 195-209   1991.7

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  135. Particle Shape Distribution and Particle Size-Shape Dispersion Diagram Reviewed

    T.Itoh and Y.Wanibe

    Powder Metallurgy   Vol. 34 ( 2 ) page: 126-134   1991.4

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  136. 粒子形状分布と粒度-形状分散図

    鰐部吉基, 伊藤孝至

    日本学術振興会第19委員会資料     page: 介在物-15   1990.11

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  137. Expansion during Liquid Phase Sintering of Iron-Copper Compacts Reviewed

    Y.Wanibe, H.Yokoyama and T.Itoh

    Powder Metallurgy   Vol. 33 ( 1 ) page: 65- 69   1990.1

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  138. Quantative Analysis of Anisotropic Shrinkage during Sintering of Cylindrical Iron and Nickel Compacts Reviewed

    Y.Wanibe, N.Fujitsuna, T.Itoh and H.Yokoyama

    Powder Metallurgy   Vol. 32 ( 3 ) page: 195-203   1989.7

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  139. Anisotropic Shrinkage and Thermal Expansion during Sintering of Cylindrical Nickel and Iron Compacts Reviewed

    Y.Wanibe, N.Fujitsuna, T.Itoh and H.Yokoyama

    Powder Metallurgy   Vol. 32 ( 3 ) page: 191-194   1989.7

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  140. Simulation on Packing of Powders Invited

      Vol. 5 ( 6 ) page: 65-69   1989.6

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  141. A Starting Point of Physical Chemistry in Powder Metallurgy -Characterization in Powder Processing- Invited

    Journal of the Iron and Steel Institute of Japan   Vol. 74 ( 8 ) page: 1526-1534   1988.8

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  142. Derivation of Number Based Size Distribution from Modified Mass Based Rosin-Rammler Distribution and Estimation of the Various Mean Particle Diameters Reviewed

    T.Itoh and Y.Wanibe

    Transactions of the Japan Institute of Metals   Vol. 29 ( 8 ) page: 671-684   1988.8

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  143. Pulverization of Molten Sn and Sn-Cu by a Bladed Rotator Method Reviewed

    T.Itoh, Y.Wanibe and K.Matsumoto

    Transactions of the Iron and Steel Institute of Japan   Vol. 28 ( 7 ) page: 561-568   1988.7

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  144. 粉体プロセシングの物理化学における条件

    坂尾 弘, 鰐部吉基, 伊藤孝至

    日本学術振興会第19委員会資料   Vol. 10849   page: 反応-664   1988.2

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  145. New Number Based Expression and Various Mean Particle Diameters for Rosin-Rammler Distribution Reviewed

    Journal of the Japan Institute of Metals   Vol. 51 ( 10 ) page: 956-964   1987.10

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  146. Infiltration of Molten FeO-SiO<SUB>2</SUB> Slag into Pores in Al<SUB>2</SUB>O<SUB>3</SUB>-SiO<SUB>2</SUB> Bricks with the Slagging Reaction Reviewed

    Journal of the Iron Steel Institute of Japan   Vol. 73 ( 3 ) page: 491-497   1987.3

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  147. Relation between Packing Density and Particle Size Distribution in Random Packing Models of Powders Reviewed

    Journal of the Japan Institute of Metals   Vol. 50 ( 8 ) page: 740-746   1986.8

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  148. Analysis of Packing Density by Randomly Packed Models of Binary Powders Reviewed

    Journal of the Japan Institute of Metals   Vol. 50 ( 5 ) page: 475-479   1986.5

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  149. Simulation of Random Packing Processes of the Powder with Forsfild's Size Distribution and Analysis of the Packing Cunfiguration Reviewed

    Journal of the Japan Institute of Metals   Vol. 50 ( 4 ) page: 423-429   1986.4

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  150. A Modified Rosin-Rammler Expression of Particle Distribution and the Interrelation between the Parameters of Mass and Number Bases Reviewed

    Journal of the Japan Institute of Metals   Vol. 49 ( 8 ) page: 670-677   1985.8

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Books 9

  1. 環境調和型社会のためのエネルギー科学 (エコトピア科学シリーズ第3巻)

    伊藤 孝至( Role: Joint author)

    ㈱コロナ社  2016.1  ( ISBN:978-4-339-06883-2

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    Language:Japanese

    熱電変換の原理、歴史、用途について解説した。特に、廃熱を利用した熱電発電に用いられる材料やモジュールおよび実用例について詳しく解説した。(担当部分)

  2. 熱電変換材料 実用・活用を目指した設計と開発 (執筆分担)

    伊藤 孝至( Role: Joint author)

    ㈱情報機構  2014.12  ( ISBN:978-4-86502-074-8

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    Language:Japanese

    シリサイド系熱電変換材料の特徴と熱電性能およびモジュール開発の現状について解説した。(担当部分)

  3. 粉体粉末冶金便覧 (執筆分担)

    伊藤 孝至( Role: Joint author)

    粉体粉末冶金協会編, 内田老鶴圃  2010.11  ( ISBN:978-4-7536-5096-5

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    Language:Japanese

  4. 粉体粉末冶金技術戦略マップ・粉末形状制御 (執筆分担)

    伊藤孝至( Role: Sole author)

    粉体粉末冶金協会  2007.11 

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    粉末の形態とは,固有の大きさと形を有する個々の粒子によって特徴付けられる粉末の性質を意味する.この粉末の形態は,その材質や製法の違いによって様々に変化し,その粉体特性や最終製品の特性をも左右する重要な粉粒体の特性の一つである.例えば,粉末粒子の形態が,粉末充填や流動性に大きく影響を与えることが知られている.大量生産される一般焼結部材や機能性焼結部材では,高品質に成るに従い個体間の寸法や重量のばらつきや性能のばらつきを最小限にする高度な品質管理が要求される.高度な品質管理のためには,原料粉末を製造する段階で粉末形態を制御することが必要である.それを可能にするには,まずその形態を的確に評価して粉末の形態と製造条件との関連を究明し,製造条件の制御によって粉末形態そのものを制御することが極めて重要となる.しかし,粉末の形態の評価において,従来粒度分布は定量的に評価されているが,粒子形状の分布を含めて定量的な評価はほとんどされていないのが現状である.著者らは,粉体特性に及ぼす粒子形状の影響の重要さに注目し,粉末の粒度と形状を総合的に定量評価する方法を提案し,その定量評価方法を用いて粉体特性に及ぼす粉末の形態特性の影響についていろいろ検討を加え,さらに粉末を形状に基づいて分級する方法についても検討してきた.これらの内容の一部を以下に紹介する.

  5. 熱電変換材料 各論1.非酸化物系材料-1.1.テルライド系

    伊藤 孝至( Role: Sole author)

    日本セラミックス協会・日本熱電学会編,日刊工業新聞社  2005.10 

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    Bi-Te系熱電化合物で代表されるテルライド系熱電材料は、現在最も多く用いられている熱電材料である。またこの材料には熱電特性の異方性を有することから、材料にせん断応力を負荷することにより結晶を一方向に優先配向させる方法を紹介し、それによって熱電特性を向上させる事例を説明する。

  6. 微粒子工学大系 第Ⅰ巻基礎技術 (執筆分担)

    鰐部 吉基,横山 誠二,伊藤孝至( Role: Joint author)

    フジ・テクノシステム  2001.10 

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  7. Dectionary of Technical Terms of Powder and Powder Metallurgy

    ( Role: Joint author)

    2001.5 

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    Language:Japanese

  8. New Quantitative Approach to Powder Technology

    Y. Wanibe and T. Itoh( Role: Joint author)

    1998.6 

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    Spanning a diverse range of materials from metal alloys through to polymers, this book brings the reader up to date with the latest developments in the formulation, characterization and application of powdered materials. Contains a general mathematical background and a step by step guide through the equations necessary for thorough comprehension and quantitative appraisal of different materials and heterogeneous structures The book is intended for final year undergraduate and post graduate students of materials science and engineering and those researchers and industrialists working with powder processing techniques. Topics covered include: * Essence of Quantitative Approach, * Characterization of Powder and Processing, * Particle Sizes, * Particle Shapes, * Distribution of Particle Sizes and Shapes, * Least Square Method, * Applied Science and Engineering, * Packing of Powder, * Powders and Short Fibers
    * Fabrication of Powder, * Thermodynamics, * Sintering, * Fluidity of Powder, * Stereology

  9. New Approach to Powder Technology

    ( Role: Joint author)

    1995.2 

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Presentations 273

  1. Thermoelectric properties of Mg2Si thin films prepared by thermal evaporation of Mg on P-doped polycrystalline Si thin films and face-to-face annealing International conference

    Kaisei Sato, Yasuyoshi Kurokawa, Keisuke Shibata, Shinya Kato, Satoru Miyamoto, Kazuhiro Gotoh, Takashi Itoh, Noritaka Usami

    9th International Symposium on Control of Semiconductor Interfaces (ISCSI-IX)  2022.9.5  ISCSI

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    Event date: 2022.9

    Language:English   Presentation type:Poster presentation  

    Venue:Nagoya University  

  2. 燃焼合成により作製した n 型Mg3Sb2 発泡体の熱電特性に及ぼすTe ドープの影響

    河村 将旭,竹内 恒博,伊藤 孝至

    第 19 回日本熱電学会学術講演会(TSJ2022)  2022.8.8  日本熱電学会

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    Event date: 2022.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:長岡市  

  3. 廃熱・未利用熱を電力に変換できる環境に優しい熱電発電 Invited

    伊藤孝至

    第20回アカデミックナイト  2022.3.24  中部経済連合会

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン開催  

  4. 真空蒸着法により作製したMg2Si薄膜の高品質化に向けたface-to-faceアニール(FTFA)効果及びラマン散乱解析

    佐藤 海誓,宮本 聡,後藤 和泰,黒川 康良,伊藤孝至,宇佐美 徳隆

    第31回材料フォーラム TOKAI   2021.11.11  日本金属学会・日本鉄鋼協会東海支部

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    Event date: 2021.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催  

  5. 真空蒸着法により作製したMg2Si薄膜の高品質化に向けたface-to-faceアニールの効果

    佐藤 海誓,宮本 聡,後藤 和泰,黒川 康良,伊藤孝至,宇佐美 徳隆

    第82回応用物理学会秋季学術講演会  2021.9.11  応用物理学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催  

  6. 燃焼合成によるMg3Sb2発泡体の形成とその熱電特性

    古賀 誉史,伊藤 孝至

    第 18 回日本熱電学会学術講演会(TSJ2021)  2021.8.23  日本熱電学会

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    Event date: 2021.8

    Language:Japanese  

    Venue:オンライン開催  

  7. 各種システムから排出される廃熱を利用した熱電発電のための研究開発 Invited

    伊藤 孝至

    産×学連携<クリーンテック>技術展  2021.2.25  名古屋商工会議所

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    Event date: 2021.2

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン  

  8. 燃焼合成によって発泡した Mg3Sb2の形態特性と熱電特性評価

    古賀 誉史,伊藤 孝至

    粉体粉末冶金協会2020年度秋季大会(第126回講演大会)  2020.10.27  粉体粉末冶金協会

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    Event date: 2020.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  9. 高マンガンシリサイドの合成と熱電特性に及ぼすPLA添加の影響

    清水 一矢,伊藤 孝至

    粉体粉末冶金協会2020年度秋季大会(第126回講演大会)  2020.10.27  粉体粉末冶金協会

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    Event date: 2020.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  10. 不活性ガス雰囲気下での熱処理を用いたクラックフリーMg2Si厚膜の合成

    堀場一成, 後藤和泰, 黒川康良, 伊藤孝至, 宇佐美徳隆

    第67回応用物理学会春季学術講演会(開催中止) 

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    Event date: 2020.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:上智大学   Country:Japan  

  11. Optimization of Degreasing-Sintering Process for Mg2Si/PLA Mixture and Influences of Additive Amount of Al on Sintered Density and Thermoelectric Performance of Mg2Si Fabricated by the Optimized Process International conference

    Takashi Itoh, Takumi Nakano

    2019 MRS Fall Meeting 

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    Event date: 2019.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Boston, USA   Country:United States  

  12. Mg2Siの焼結性および熱電性能に基づく Mg2Si/PLA混合物における脱脂-焼結プロセスの最適化とAl添加量の影響

    伊藤孝至, 中野匠望

    粉体粉末冶金協会2019年度秋季大会(第124回講演大会) 

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    Event date: 2019.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋大学   Country:Japan  

  13. Mg2Si/PLA混合物の脱脂-焼結プロセスの最適化とMg2Siの焼結性および熱電性能に及ぼすAl添加量の影響

    伊藤孝至, 中野匠望

    2019年度日本熱電学会学術講演会(TSJ2019) 

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    Event date: 2019.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋工業大学   Country:Japan  

  14. Synthesis of Mg2Si thin film by thermal treatment under inert gas atmosphere and evaluation of film quality International conference

    Issei Horiba, Michinobu Fujiwara, Yoshihiko Nakagawa, Kazuhiro Gotoh, Yasuyoshi Kurokawa, Takashi Itoh, Noritaka Usami

    The Fifth Asia-Pacific Conference on Semiconducting Silicides and Related Materials(APAC-Silicide 2019) 

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    Event date: 2019.7

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Seagaia Convention Center, Miyazaki, Japan   Country:Japan  

  15. 熱電変換の基礎から応用(熱電発電)まで Invited

    伊藤孝至

    熱電変換セミナー 

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    Event date: 2019.6

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京・大井町・きゅりあん   Country:Japan  

  16. 各種熱電変換材料の組織制御による熱電性能の向上

    伊藤孝至

    第39回日本熱物性シンポジウム 

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    Event date: 2018.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:ウインクあいち   Country:Japan  

  17. ポリ乳酸樹脂を混合した Mg2Si の焼結体における熱電特性に及ぼすAl 添加の影響 Invited

    伊藤孝至

    粉体粉末冶金協会平成30年度秋季大会(第122回講演大会) 

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    Event date: 2018.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:朱鷺メッセ新潟コンベンションセンター   Country:Japan  

  18. 不活性ガス雰囲気下での熱処理を用いたMg2Si薄膜の合成と膜質評価 Invited

    堀場 一成,藤原道信,中川慶彦,後藤和泰,黒川康良,伊藤孝至,宇佐美 徳隆

    第79回応用物理学会秋季学術講演会 

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    Event date: 2018.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋国際会議場   Country:Japan  

  19. p型BaSi2/n型結晶Siヘテロ接合形成におけるBaSi2低速蒸着の効果 Invited

    藤原道信,高橋一真,中川慶彦,後藤和泰,黒川康良,伊藤孝至,宇佐美 徳隆

    第79回応用物理学会秋季学術講演会 

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    Event date: 2018.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋国際会議場   Country:Japan  

  20. 横方向熱電効果を有するNi/Mg2Si複合材料の熱電特性に関する有限要素シミュレーション解析 Invited

    伊藤孝至

    粉体粉末冶金協会平成30年度春季大会(第121回講演大会) 

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    Event date: 2018.5

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:京都大学   Country:Japan  

  21. Finite Element Simulation on Thermoelectric Properties of Tilted Rod-Ni/Mg2Si Composites International conference

    T. Itoh

    2017 MRS Fall Meeting 

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    Event date: 2017.11 - 2017.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Boston, USA   Country:United States  

  22. 数値シミュレーションによるMg2Si/Ni傾斜積層複合材料の熱電特性の解析

    伊藤孝至

    第28 回新構造・機能制御と傾斜機能材料シンポジウム 

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    Event date: 2017.8

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋工業大学   Country:Japan  

  23. Numerical Simulation Analysis on Thermoelectric Properties of Tilted Mg2Si/Ni Multilayer Composites International conference

    T. Itoh

    36th International Conference on Thermoelectrics 

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    Event date: 2017.7 - 2017.8

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Pasadena, USA   Country:United States  

  24. 数値シミュレーションによる傾斜積層Mg2Si/Ni複合材料の熱電特性の予測評価

    伊藤孝至

    粉体粉末冶金協会 焼結基礎分科会 第34回技術・品質評価委員会 

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    Event date: 2017.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋大学   Country:Japan  

  25. Numerical Simulation Analysis on Thermoelectric Properties of Mg2Si/Ni Laminated Composites with Slanted Lamination Plane

    T. Itoh

    Japan and Korea Joint Workshop on Thermoelectric Materials and Devices 

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    Event date: 2017.1

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Tokyo University of Science   Country:Japan  

  26. Mg2Si/Ni傾斜積層複合材料の熱電特性に関する数値シミュレーション

    伊藤孝至

    平成28年度秋季大会(第118回講演大会) 

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    Event date: 2016.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東北大学   Country:Japan  

  27. Thermoelectric Properties of Al-doped Mg2Si Compounds Prepared via Three Kinds of Process for Grain Refining International conference

    T. Itoh, A. Tominaga

    2015 MRS Fall Meeting 

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    Event date: 2015.11 - 2015.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Boston, USA   Country:United States  

  28. Cobalt and Iron Doping Effects on Thermoelectric Properties of Higher Manganese Silicides Prepared by Mechanical Milling and Pulse Discharge Sintering International conference

    T. Itoh, S. Uebayashi

    3rd International Conference on Powder Metallurgy in Asia (APMA2015) 

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    Event date: 2015.11

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Kyoto, Japan   Country:Japan  

  29. 熱電変換材料および発電用モジュールの開発

    伊藤孝至

    日本塑性加工学会 粉体加工成形プロセス分科会2015年度 第1回研究会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋大学   Country:Japan  

  30. Influences of Grain Refining and Nanosized CaO Addition on Thermoelectric Properties of Al-doped Mg2Si International conference

    T. Itoh, A. Tominaga

    34th International Conference on Thermoelectrics 

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    Event date: 2015.6 - 2015.7

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Dresden, Germany   Country:Germany  

  31. Influence of Grain Refining on Thermoelectric Properties of Mg2Si-based Compound International conference

    T. Itoh, A. Tominaga

    33rd International Conference on Thermoelectrics 

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    Event date: 2014.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  32. Mg2Si系化合物の熱電特性と粒成長に及ぼすナノ酸化物粒子添加の影響

    伊藤孝至, 富永 彰

    平成26年度春季(第113回)講演大会 

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    Event date: 2014.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:早稲田大学国際会議場   Country:Japan  

  33. 粉末冶金プロセスを用いた環境調和型シリサイド系熱電変換材料の開発

    伊藤孝至

    平成26年度春季(第113回)講演大会 

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    Event date: 2014.6

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:早稲田大学国際会議場   Country:Japan  

  34. Mg2SiおよびMnSi1.73熱電化合物半導体の開発および自動車への適用の可能性

    伊藤孝至

    「自動車用(二輪車含む)熱電発電と要素技術開発の最新動向」セミナー 

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    Event date: 2014.4

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:連合会館(東京・新お茶の水)   Country:Japan  

  35. 環境に優しいシリサイド系熱電変換材料の開発

    伊藤孝至

    粉体粉末冶金協会 焼結基礎分科会 第31回技術・品質評価委員会 

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    Event date: 2014.2

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋大学   Country:Japan  

  36. 廃熱回収のための熱電変換技術および材料

    伊藤孝至

    省エネルギー/システム技術分科会 

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    Event date: 2014.1

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:三重県工業研究所   Country:Japan  

  37. Influence of Aluminum Addition on Thermoelectric Performance of Mg2Si Compound under Air Exposure with Temperature Difference International conference

    T. Itoh, A. Tominaga

    2013 MRS Fall Meeting 

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    Event date: 2013.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  38. 大気中で温度差を付与したMg2Si熱電素子の発電性能に及ぼすAl添加の影響

    伊藤孝至, 富永 彰, 地主孝広, 石島善三

    平成25年度秋季(第112回)講演大会 

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    Event date: 2013.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋国際会議場   Country:Japan  

  39. 熱電変換材料の合成とモジュールの開発研究

    伊藤孝至

    第18回排熱発電コンソーシアム 

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    Event date: 2013.7

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京理科大学   Country:Japan  

  40. Thermoelectric Properties of Mg2Si Compound Prepared under Mg-rich Condition with Al Addition Using Liquid-solid Phase Reaction Method and Pulse Discharge Sintering International conference

    T. Itoh, A. Tominaga

    32nd International Conference on Thermoelectrics 

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    Event date: 2013.6 - 2013.7

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  41. 半導体機器用Cr-Cu材ヒートシンクの開発

    寺尾星明, 小日置英明, 伊藤孝至, 金武直幸

    平成25年度春季(第111回)講演大会 

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    Event date: 2013.5

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:早稲田大学   Country:Japan  

  42. Fe-Si系熱電発電モジュールの試作および界面構造の解析

    相馬 岳, 向井和人, 森重裕美子, 伊藤孝至

    第23回新構造・機能制御と傾斜機能材料シンポジウム(FGM-2012) 

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    Event date: 2012.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:工学院大学   Country:Japan  

  43. Influence of Addition of Alumina Nanoparticles on Thermoelectric Properties of Higher Manganese Silicide International conference

    T. Itoh, N Ono

    2012 MRS Fall Meeting 

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    Event date: 2012.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  44. β-Zn4Sb3のナノ粒子の作製とナノ粒子混合焼結体の特性

    丸山拓馬, 伊藤孝至

    第22回学生による材料フォーラム 

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    Event date: 2012.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:サイエンスコア(豊橋)   Country:Japan  

  45. Mg2Si系熱電化合物の熱電特性と耐酸化性に及ぼすAl添加と結晶粒微細化の影響

    富永 彰, 伊藤孝至

    第22回学生による材料フォーラム 

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    Event date: 2012.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:サイエンスコア(豊橋)   Country:Japan  

  46. 半導体機器用Cr-Cu材ヒートシンクの焼結-浸透方法の検討

    寺尾星明, 小日置英明, 太田裕樹, 田辺和夫, 伊藤孝至, 金武直幸

    平成24年度秋季(第110回)講演大会 

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    Event date: 2012.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:立命館大学   Country:Japan  

  47. 液相-固相反応法で合成したMgリッチMg2Si系化合物の熱電特性に及ぼす結晶粒微細化の影響

    富永 彰, 伊藤孝至, 地主孝広, 石島善三

    平成24年度秋季(第110回)講演大会 

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    Event date: 2012.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:立命館大学   Country:Japan  

  48. シリサイド系熱電素子で構成されたモジュールの発電性能に及ぼす接合方法の影響

    西形光祐, 伊藤孝至, 地主孝広, 石島善三

    平成24年度秋季(第110回)講演大会 

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    Event date: 2012.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:立命館大学   Country:Japan  

  49. Development of Cr-Cu Heat-sink(J-C'CREP®) for Semiconductor Device International conference

    H. Terao, H. Kobiki, H. Ota, K. Tanabe, T. Itoh, N. Kanetake

    2012 Powder Metallurgy World Congress & Exhibition 

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    Event date: 2012.10

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  50. Development of Eco-Friendly Thermoelectric Silicide Compounds and Modules for Energy Harvesting International conference

    T. Itoh, K. Nishigata

    2012 Powder Metallurgy World Congress & Exhibition 

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    Event date: 2012.10

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  51. 粉末冶金プロセスを用いた熱電変換材料の開発と熱電発電モジュールに関するシミュレーション

    伊藤孝至

    第15回排熱発電コンソーシアム 

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    Event date: 2012.10

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京理科大学   Country:Japan  

  52. SiCウィスカーを添加したZn4Sb3熱電材料の作製と性能評価

    藤原優哉, 赤尾尚洋, 音田哲彦, 陳中春, 伊藤孝至

    日本金属学会第151回秋期大会 

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    Event date: 2012.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:愛媛大学   Country:Japan  

  53. 液相‐固相反応法で合成したMgリッチMg2Si系化合物の熱電特性と耐酸化性に及ぼすAl添加の影響

    富永 彰, 伊藤孝至, 地主孝広, 石島善三

    日本金属学会第151回秋期大会 

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    Event date: 2012.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:愛媛大学   Country:Japan  

  54. 廃熱発電用熱電変換材料およびモジュールの開発、応用展開

    伊藤孝至

    熱電変換 材料・デバイスの開発技術 

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    Event date: 2012.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京大井町   Country:Japan  

  55. 有限要素法に基づく熱電モジュールの発電シミュレーションと発電性能に及ぼすp-n素子形状の影響

    伊藤孝至, 地主孝広, 石島善三

    第9回 日本熱電学会学術講演会 

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    Event date: 2012.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京工業大学   Country:Japan  

  56. Thermoelectric Properties of Co-doped and Fe-doped Higher Manganese Silicides Prepared by Vibration Ball Milling and Pulse Discharge Sintering International conference

    T. Itoh, S. Uebayashi

    31st International Conference on Thermoelectrics 

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    Event date: 2012.7

    Language:English   Presentation type:Poster presentation  

    Country:Denmark  

  57. マグネシウムシリサイドと高マンガンシリサイドを用いた熱電発電モジュールの熱電性能に及ぼす接合条件の影響

    西形光祐, 伊藤孝至, 地主孝広, 石島善三

    平成24年度春季(第109回)講演大会 

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    Event date: 2012.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都工芸繊維大学   Country:Japan  

  58. ポリオールプロセスを用いたBi-Te系,Sb-Te系及びSb-Se系熱電ナノ材料の合成

    丸山拓馬, 伊藤孝至

    平成24年度春季(第109回)講演大会 

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    Event date: 2012.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都工芸繊維大学   Country:Japan  

  59. 液相-固相反応法で合成したMgリッチMg2Si系化合物の熱電特性に及ぼすAl添加の影響

    富永 彰, 伊藤孝至

    平成24年度春季(第109回)講演大会 

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    Event date: 2012.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都工芸繊維大学   Country:Japan  

  60. 熱電発電用シリサイド系素子の合成と性能向上

    伊藤孝至

    第59回応用物理学関係連合講演会シンポジウム「シリサイド系熱電材料は排熱発電の本命になり得るか〜実力と課題を知る〜」 

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    Event date: 2012.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:早稲田大学   Country:Japan  

  61. Metal Coatings on Higher Manganese Silicide by Gas Tunnel Type Plasma Spraying International conference

    S.Yugeswaran, A. Kobayashi, T. Itoh, T. Takeuchi

    The 5th International Workshop on Plasma Application and Hybrid Functionally Materials 

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    Event date: 2012.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:Taiwan, Province of China  

  62. Fe-Si系熱電発電モジュールの試作

    森重裕美子, 相馬 岳, 伊藤孝至

    第24回「若手フォーラム」 

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    Event date: 2012.2

    Language:Japanese   Presentation type:Poster presentation  

    Venue:岡山国際交流センター   Country:Japan  

  63. シリサイド系熱電発電モジュールの試作

    江戸拓朗, 相馬 岳, 伊藤孝至

    第24回「若手フォーラム」 

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    Event date: 2012.2

    Language:Japanese   Presentation type:Poster presentation  

    Venue:岡山国際交流センター   Country:Japan  

  64. Solidification of MnSi1.73 in A Magnetic Field International conference

    T. Mitsuo, K. Iwai, T. Itoh

    International Symposium on EcoTopia Science 

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    Event date: 2011.12

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  65. Effect of Filling of Mg and Addition of Alumina Nanoparticles on Thermoelectric Properties of N-type La Filled CoSb3 Compounds International conference

    M. Matsuhara, T. Itoh

    International Symposium on EcoTopia Science 

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    Event date: 2011.12

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  66. Synthesis of Ti-doped Higher Manganese Silicide by Pulse Discharge Sintering International conference

    N. Ono, T. Itoh

    International Symposium on EcoTopia Science 

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    Event date: 2011.12

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  67. Thermoelectric Properties of Mg2Si-Based Compounds Synthesized Using Three Kinds of Magnesium Alloy International conference

    K. Hagio, T. Itoh

    International Symposium on EcoTopia Science 

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    Event date: 2011.12

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  68. Synthesis of β-Zn4Sb3 Thermoelectric Nanoparticles by Reaction of Synthesized Sb Nanoparticles and Molten Zn International conference

    T. Maruyamaaa, T. Itoh

    International Symposium on EcoTopia Science 

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    Event date: 2011.12

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  69. Development of Thermal Rectifier Using Unusual Electron Thermal Conductivity International conference

    R. Nakayama, T. Itoh, T. Takeuchi

    International Symposium on EcoTopia Science 

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    Event date: 2011.12

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  70. Zn4Sb3バルク材の押出し挙動に及ぼすSiC粒子添加の影響

    宇矢憲司, 赤尾尚洋, 音田哲彦, 陳中春, 伊藤孝至

    日本塑性加工学会中国四国支部学生研究発表会 

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    Event date: 2011.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:岡山大学   Country:Japan  

  71. Zn4Sb3/CNT熱電材料の合成および機械的性質

    富谷皓平, 酒井一生, 赤尾尚洋, 音田哲彦, 陳中春, 伊藤孝至, 塚田高行

    日本塑性加工学会中国四国支部学生研究発表会 

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    Event date: 2011.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:岡山大学   Country:Japan  

  72. 振動ボールミリングとパルス放電焼結を組合せた手法による高マンガンシリサイドの合成とその熱電特性の評価

    大野直紀, 伊藤孝至

    第21回学生による材料フォーラム 

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    Event date: 2011.12

    Language:Japanese   Presentation type:Poster presentation  

    Venue:名古屋工業大学   Country:Japan  

  73. Mg2Si系熱電化合物の焼結性及び熱電特性におけるMg過剰添加とZn添加の影響

    富永 彰, 伊藤孝至

    第21回学生による材料フォーラム 

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    Event date: 2011.12

    Language:Japanese   Presentation type:Poster presentation  

    Venue:名古屋工業大学   Country:Japan  

  74. シリサイド系熱電素子を用いたユニカップルモジュールの作製とその発電特性

    西形光祐, 伊藤孝至

    第21回学生による材料フォーラム 

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    Event date: 2011.12

    Language:Japanese   Presentation type:Poster presentation  

    Venue:名古屋工業大学   Country:Japan  

  75. Synthesis of Higher Manganese Silicide and Its Thermoelectric Property International conference

    N. Ono, T. Itoh

    International Symposium on Materials Science Innovation for Sustainable Society 

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    Event date: 2011.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  76. Thermoelectric Properties of N-type La-Mg Double Filled CoSb3 Compounds Synthesized by MA-PDS International conference

    M. Matsuhara, T. Itoh

    International Symposium on Materials Science Innovation for Sustainable Society 

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    Event date: 2011.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  77. Thermoelectric Properties and Durability of Mg2Si-based Compounds Synthesized Using Magnesium Alloy International conference

    K. Hagio, T. Itoh

    International Symposium on Materials Science Innovation for Sustainable Society 

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    Event date: 2011.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  78. Mg 合金を用いて合成したMg2Si 系化合物の熱電特性

    萩尾建門, 伊藤孝至

    日本金属学会第149回秋季大会 

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    Event date: 2011.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:沖縄コンベンションセンター   Country:Japan  

  79. Mg2Si熱電化合物におけるZn添加の影響

    富永 彰, 伊藤孝至

    日本金属学会第149回秋季大会 

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    Event date: 2011.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:沖縄コンベンションセンター   Country:Japan  

  80. Fe2VAlの電子構造と熱電物性における重元素部分置換効果

    寺澤佑一, 三上祐史, 伊藤孝至, 竹内恒博

    日本金属学会第149回秋季大会 

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    Event date: 2011.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:沖縄コンベンションセンター   Country:Japan  

  81. 生成したSb ナノ粒子を用いた液相-固相反応法によるβ-Zn4Sb3 ナノ粒子の合成

    丸山拓馬, 伊藤孝至

    日本金属学会第149回秋季大会 

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    Event date: 2011.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:沖縄コンベンションセンター   Country:Japan  

  82. (Mn1-XTiX)Si1.82 の合成と熱電特性の評価

    大野直紀, 伊藤孝至

    日本金属学会第149回秋季大会 

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    Event date: 2011.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:沖縄コンベンションセンター   Country:Japan  

  83. *Development of Eco-Friendly Thermoelectric Materials and Modules for Energy Harvesting International conference

    The 17th ATA International Symposium 

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    Event date: 2011.11

    Language:English   Presentation type:Oral presentation (invited, special)  

    A thermoelectric power generation system can directly convert a thermal energy into an electric energy without gas emissions, and it is one of the effective green energy systems. The natural energy from sunshine and geothermy and the waste heat discharged from automobile, industrial furnace, refuse incineration furnace and other combustion systems can be used as the heat resources for the thermoelectric power generation. Especially, the power generation system using the waste heat with intermediate temperature (300-600 oC), which is discharged from automobile, industrial furnace, and refuses incineration etc., plays a very important role for saving energy and environmental conservation. Thus, the developments on the thermoelectric materials and the modules working effectively in this temperature range are required. Our research group has researched and developed the thermoelectric materials (Zn4Sb3, AgSbTe2, CoSb3, MnSi1.73 and Mg2Si) and the modules constructed with these materials. Among these thermoelectric materials, the silicide materials of MnSi1.73 (p-type) and Mg2Si (n-type) begin to attract an attention as promising eco-friendly thermoelectric materials because their constituent elements have no toxicity and exist abundantly in earth crust and they have relatively good thermoelectric performance. In this work, the higher manganese silicide MnSi1.73 was synthesized through the mutual diffusion process activated by a pulse discharge sintering (PDS) method after individually grinding Mn and Si powders. The MnSi1.73 synthesized by the method had a better thermoelectric performance than the material synthesized by the conventional fusion method. Next, the Mg2Si-besed compound was synthesized by a liquid-solid phase reaction (LSPR) method. In the LSPR method, Mg powder and magnesium alloy chips were melted above the melting point of these metals and reacted with Si powder in the solid state, and then the Mg2Si-based compound powder was synthesized. The powder was consolidated by PDS method. The Mg2Si-based compound including magnesium alloy elements had a remarkably good thermoelectric performance. The eco-friendly module was fabricated using the thermoelectric elements of MnSi1.73 and Mg2Si-based compounds. Joining between the elements and the electrode was carried out by PDS method. The thermoelectric performance of the fabricated module was evaluated. The simulation of the thermoelectric performance of the similar module was also carried out using finite element method (FEM).

  84. 熱電変換材料の高性能化と新規モジュールの製造技術

    伊藤孝至

    熱電変換セミナー「中高温域に適した熱電変換モジュールの高効率化と性能評価」 

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    Event date: 2011.8

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京   Country:Japan  

  85. Fe-Si系熱電発電モジュールの開発

    森重裕美子, 向永和人, 相馬 岳, 伊藤孝至

    第8回 日本熱電学会学術講演会 

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    Event date: 2011.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:北海道大学   Country:Japan  

  86. Effect of Addition of Alumina Nanoparticles on Thermoelectric Properties of La-filled Skutterudite CoSb3 Compounds International conference

    M. Matsuhara, T. Itoh

    30th International Conference on Thermoelectrics 

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    Event date: 2011.7

    Language:English   Presentation type:Poster presentation  

    Country:United States  

  87. Mg合金を使用して合成したMg2Si系化合物の熱電特性に及ぼす高温大気曝露の影響

    萩尾建門, 伊藤孝至

    平成23年度春季(第107回)講演大会 

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    Event date: 2011.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:早稲田大学   Country:Japan  

  88. La充填CoSb3系化合物の熱電特性に及ぼすアルミナナノ粒子添加の影響

    松原正樹, 伊藤孝至

    平成23年度春季(第107回)講演大会 

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    Event date: 2011.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:早稲田大学   Country:Japan  

  89. 粉末冶金プロセスを用いたシリサイド系化合物の合成と熱電特性

    伊藤孝至

    第58回応用物理学関係連合講演会シンポジウム「見直され始めたシリサイド系熱電材料」 

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    Event date: 2011.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:神奈川工科大学   Country:Japan  

  90. 粉末冶金プロセスによるシリサイド系熱電材料の合成とその特性評価

    伊藤孝至

    粉体粉末冶金協会 焼結基礎分科会 第28回技術・品質評価委員会 

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    Event date: 2011.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋大学   Country:Japan  

  91. Thermoelectric Properties of Carbon Nanotubes Added n-type CoSb3 Compound International conference

    T.Itoh and M. Tachikawa

    2010 MRS Fall Meeting 

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    Event date: 2010.12

    Language:English   Presentation type:Poster presentation  

    Country:United States  

  92. ポリオールプロセスによるBi-Te-Se熱電化合物のナノサイズ合成

    西脇想祐,伊藤孝至

    第20回学生による材料フォーラム 

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    Event date: 2010.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:名古屋大学   Country:Japan  

  93. MA-PDS法によるMg-La二重充填CoSb3の合成とその熱電特性

    松原正樹,伊藤孝至

    第20回学生による材料フォーラム 

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    Event date: 2010.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:名古屋大学   Country:Japan  

  94. 液相―固相反応法によって合成したMg2Si系化合物の熱電性能に及ぼすMg合金配合の影響

    萩尾建門,伊藤孝至

    第20回学生による材料フォーラム 

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    Event date: 2010.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:名古屋大学   Country:Japan  

  95. Synthesis of Bi2Te3 Nanosheets Using Polyol Process International conference

    S. Nishiwaki and T. Itoh

    3rd International Congress on Ceramics 

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    Event date: 2010.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  96. Fabrication and Thermoelectric Properties of Eco-Friendly Silicides for Thermoelectric Power Generation Using Waste Heat International conference

    T. Itoh

    The International Symposium on Advanced Materials Development and Integration of Novel Structured Metallic and Inorganic Materials 

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    Event date: 2010.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  97. MA‐PDS法で作製したLa‐Mg二重充填CoSb3スクッテルダイトの熱電特性

    松原正樹,伊藤孝至

    平成22年度粉体粉末冶金協会秋季(第106回)講演大会 

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    Event date: 2010.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都大学   Country:Japan  

  98. ポリオールプロセスを用いたナノサイズBi-Te-M (M=Se, Sb)熱電化合物の合成

    西脇想祐,伊藤孝至

    平成22年度粉体粉末冶金協会秋季(第106回)講演大会 

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    Event date: 2010.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都大学   Country:Japan  

  99. 液相‐固相反応法によって合成したMg合金を用いたMg2Si系化合物の熱電特性

    萩尾建門,伊藤孝至

    平成22年度粉体粉末冶金協会秋季(第106回)講演大会 

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    Event date: 2010.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都大学   Country:Japan  

  100. 廃熱をエネルギー資源として活用できる熱電材料の開発

    伊藤孝至

    第108回金属物性研究会 

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    Event date: 2010.10

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:鳥取大学   Country:Japan  

  101. 廃熱をエネルギー資源にできる熱電発電と環境共生型シリサイド系熱電材料の開発について

    伊藤孝至

    テクノ・フェアー名大講演 

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    Event date: 2010.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋大学   Country:Japan  

  102. Synthesis of Thermoelectric Bi-Sb Alloy by Liquid-Solid Phase Reaction Method International conference

    S. Nishiwaki and T. Itoh

    29th International Conference on Thermoelectric 

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    Event date: 2010.6

    Language:English   Presentation type:Poster presentation  

    Country:China  

  103. Effect of Silicon Content on Thermoelectric Properties of Higher Manganese Silicide Compounds Prepared by Mechanical Grinding and Pulse Discharge Sintering International conference

    T. Itoh and M. Yoshikura

    29th International Conference on Thermoelectric 

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    Event date: 2010.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:China  

  104. Development of Thermal Rectifier Usable at High Temperature International conference

    T. Takeuchi, H. Goto, Y. Toyama, T. Itoh and M. Mikami

    29th International Conference on Thermoelectric 

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    Event date: 2010.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:China  

  105. 環境共生型シリサイド系化合物を用いた熱電モジュールの作製

    小林 亮,伊藤孝至

    平成22年度粉体粉末冶金協会春季(第105回)講演大会 

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    Event date: 2010.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:早稲田大学   Country:Japan  

  106. ポリオールプロセスを用いたナノサイズBi-Te系熱電化合物の合成

    西脇想祐,伊藤孝至

    平成22年度粉体粉末冶金協会春季(第105回)講演大会 

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    Event date: 2010.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:早稲田大学   Country:Japan  

  107. 廃熱発電用非酸化物系熱電材料の開発と熱電モジュールの高性能化へのアプローチ

    伊藤孝至

    セミナー「~排熱利用・自動車の燃費向上アシストに向けて~熱電変換材料の高性能化とモジュール開発」 

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    Event date: 2010.5

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京,TIME24ビル   Country:Japan  

  108. Mg-Si系とMn-Si系材料の開発について

    伊藤孝至

    第5回排熱発電コンソーシアム研究会 

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    Event date: 2010.4

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京理科大学   Country:Japan  

  109. 熱電発電のための積層型熱電素子およびモジュールの新規開発

    伊藤孝至

    熱電変換セミナー「熱電変換材料の開発とモジュール化・量産化技術」 

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    Event date: 2010.4

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京・王子 北とぴあ   Country:Japan  

  110. 修正ポリオールプロセスによるBi-Sb合金熱電ナノ粒子の合成とその焼結固化

    田中裕介, 伊藤孝至

    第19回学生による材料フォーラム(日本金属学会・日本鉄鋼協会東海支部) 

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    Event date: 2009.11

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  111. *Development of Materials and Modules for Thermoelectric Power Generation Recovering Waste Heat International conference

    The 15th ATA Symposium (International Green Energy Conference) 

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    Event date: 2009.11

    Language:English   Presentation type:Oral presentation (invited, special)  

  112. PDS法を用いた高マンガンシリサイドの合成とその熱電特性

    吉倉雅晶, 伊藤孝至

    第19回学生による材料フォーラム(日本金属学会・日本鉄鋼協会東海支部) 

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    Event date: 2009.11

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  113. CoSb3系化合物の熱電特性に及ぼすAl2O3ナノ粒子添加の影響

    太刀川雅史, 伊藤孝至

    第19回学生による材料フォーラム(日本金属学会・日本鉄鋼協会東海支部) 

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    Event date: 2009.11

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  114. 液相-固相反応法によるBi-Sb合金の合成とその熱電特性

    西脇想祐,伊藤孝至

    粉体粉末冶金協会平成21年度秋季大会 

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    Event date: 2009.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  115. パルス放電焼結法を用いたHMSの合成とその熱電特性

    吉倉雅晶,伊藤孝至

    粉体粉末冶金協会平成21年度秋季大会 

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    Event date: 2009.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  116. n型Co0.92Ni0.08Sb2.96Te0.04スクッテルダイト化合物の熱電特性の及ぼすAl2O3ナノ粒子分散の影響

    太刀川雅史,伊藤孝至

    粉体粉末冶金協会平成21年度秋季大会 

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    Event date: 2009.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  117. 修正ポリオールプロセスによるBi-Sb合金ナノ粒子合成に及ぼす合成条件の影響

    田中裕介,伊藤孝至

    粉体粉末冶金協会平成21年度秋季大会 

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    Event date: 2009.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  118. Synthesis of Higher Manganese Silicide by Pulse Discharge Sintering Method International conference

    M. Yoshikura, T. Itoh

    R'07 Twin World Congress 

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    Event date: 2009.10

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  119. Influence of Carbon Nanotube Addition on Thermoelectric Properties of Skutterudite-type Cobalt Antimonide Compound International conference

    M. Tachikawa, T. Itoh

    R'09 Twin World Congress 

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    Event date: 2009.10

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  120. Synthesis of thermoelectric Bi-Sb alloy nanoparticles International conference

    Y. Tanaka, T. Itoh

    R'07 Twin World Congress 

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    Event date: 2009.10

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  121. 高効率な熱電発電のための熱電素子およびシステムの開発

    伊藤 孝至

    材料バックキャストテクノロジー研究センターの研究紹介 

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    Event date: 2009.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋大学   Country:Japan  

  122. 高効率な熱電発電のための熱電素子およびシステムの開発

    伊藤 孝至

    テクノ・フェアー名大ミニ講演会 

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    Event date: 2009.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  123. 液相-固相反応法およびパルス放電焼結法によって作製したAlドープMg2Si化合物の熱電特性

    伊藤 孝至,松野 光晴

    第4回3大学3研究所連携プロジェクト公開討論会 ―次期6大学連携プロジェクト「特異構造金属・無機融合高機能材料開発」に向けて ― 

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    Event date: 2009.8

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  124. Thermoelectric Properties of Al-doped Mg2Si Compounds Prepared by Liquid-Solid Phase Reaction and Pulse Discharge Sintering International conference

    T. Itoh, M. Matsuno

    28th International Conference on Thermoelectrics 

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    Event date: 2009.7

    Language:English   Presentation type:Poster presentation  

    Country:Germany  

  125. Syntheses of Ni-doped and Fe-doped CoSb3 Thermoelectric Nanoparticles through Modified Polyol Process

    2009 MRS Spring Meeting 

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    Event date: 2009.4

    Language:English   Presentation type:Poster presentation  

  126. Syntheses of Ni-doped and Fe-doped CoSb3 Thermoelectric Nanoparticles through Modified Polyol Process

    2009 MRS Spring Meeting 

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    Event date: 2009.4

    Language:English   Presentation type:Poster presentation  

  127. Bi100-xSbx低温用熱電材料のナノ粒子合成

    田中裕介, 伊藤孝至

    日本金属学会第144回春季大会 

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    Event date: 2009.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  128. PDS法を用いた新製法による高マンガンシリサイド(HMS)の合成

    吉倉雅晶, 伊藤孝至

    日本金属学会第144回春季大会 

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    Event date: 2009.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  129. CoSb3系化合物の熱電特性に及ぼすカーボンナノチューブ添加の影響

    太刀川雅史, 伊藤孝至

    日本金属学会第144回春季大会 

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    Event date: 2009.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  130. 修正ポリオールプロセスによる熱電ナノ粒子の合成

    伊藤孝至

    第26回技術・品質評価委員会(粉体粉末冶金協会 焼結基礎分科会) 

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    Event date: 2009.2

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  131. 新しい粉末冶金技術とその応用

    伊藤孝至

    平成20年度技術融合化シンポジウム(主催:名古屋市工業研究所、共催:(財)名古屋市工業技術振興協会) 

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    Event date: 2009.2

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  132. The effect of the sintering conditions and addition of fullerene on thermoelectric properties of Mg2Si International conference

    The IUMRS International Coference in Asia 2008 

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    Event date: 2008.12

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  133. Thermoelectric Properties of Sintered Bodies Made of Synthesized CoSb3 Nanoparticles International conference

    The IUMRS International Coference in Asia 2008 

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    Event date: 2008.12

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  134. Fabrication of Thermoelectric Module by A New Manufacturing Process and Its Performance International conference

    The IUMRS International Coference in Asia 2008 

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    Event date: 2008.12

    Language:English   Presentation type:Poster presentation  

  135. 環境共生型熱電材料Mg2Siの熱電特性に及ぼす焼結条件とフラーレン添加の影響

    松野光晴, 伊藤孝至

    第18回学生による材料フォーラム(日本金属学会・日本鉄鋼協会東海支部) 

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    Event date: 2008.12

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  136. 新たな手法による熱電発電用(積層型)モジュールの作製とその評価

    生田裕二, 伊藤孝至

    第18回学生による材料フォーラム(日本金属学会・日本鉄鋼協会東海支部) 

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    Event date: 2008.12

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  137. *Synthesis of Co1-xNixSb3 Thermoelectric Nanoparticles International conference

    The 14th International Symposium on Advanced Technology and Applications (ATA) 

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    Event date: 2008.11

    Language:English   Presentation type:Poster presentation  

  138. CoSb3系熱電材料のナノ粒子合成と熱電特性に及ぼすフラーレン添加の影響

    伊藤孝至

    第2回名古屋大学と産業技術総合研究所との技術交流会 

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    Event date: 2008.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

    CoSb3系熱電材料は熱電特性に優れた有望な熱電材料であるが,熱伝導率を低減させることが課題である.そこで,熱伝導率の低減のためにナノサイズの粒径を持つにCoSb3系熱電材料を化学合成法を用いて合成した成果や,CoSb3系熱電材料にフラーレンを均一に添加して得られた成果を報告する.

  139. 廃熱を利用した熱電発電のための研究開発

    伊藤孝至

    高校模擬授業 

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    Event date: 2008.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

    熱エネルギーと電気エネルギーを相互に直接変換できる半導体として熱電材料がある。この材料を用いた発電は、太陽光発電や風力発電と同様に有望な発電方法として期待されている。熱電効果とそれに関連する歴史から、廃熱を有効利用した熱電発電のための最新の研究開発について紹介する。

  140. Co(1-x)NixSb3熱電材料のナノ粒子合成

    磯貝佳祐, 伊藤孝至

    日本金属学会第143回秋季大会 

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    Event date: 2008.9

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

    スクッテルダイト構造を有するCoSb3系化合物は,300~600℃の中温域で比較的優れた熱電性能を持つ材料として知られているが,熱伝導率が比較的大きい熱電材料である.ナノ粒子からバルク体を作製し,結晶粒の微細化を図ることによって,フォノン散乱による格子熱伝導率の低減が期待できる.そこで本研究では,修正ポリオールプロセスを用いてCoサイトをNi原子で一部置換したCo(1-x)NixSb3熱電材料のナノ粒子合成を試みた.

  141. Mg2Siの熱電特性に及ぼす焼結条件およびフラーレン添加の影響

    松野光晴, 伊藤孝至

    日本金属学会第143回秋季大会 

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    Event date: 2008.9

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

    熱電材料の一つであるMg2Siは,含まれる元素のMgとSiは共に毒性がなく地球上に豊富に存在する点で大変有望な熱電材料である.しかし,Mg2Siの合成の困難さからその材料の性能向上に関する研究はあまり報告されていない.そこで本研究では,液相-固相反応法を用いてMg2Siの合成を行い,焼結条件やフラーレン添加が熱電性能に及ぼす影響を調査・検討した.

  142. 新たな手法による熱電発電用モジュールの作製と発電性能評価

    生田裕二, 伊藤孝至

    日本金属学会第143回秋季大会 

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    Event date: 2008.9

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

    従来の熱電発電モジュールの製造方法では,バルク体からの熱電素子の切り出し,p型とn型素子の配列,電極の接続,パッケージングといった煩雑な製造工程を経ているため,製造コストが高くなってしまうことが問題である.そこで本研究では,製造コスト削減につながる新たな製造手法を提案し,その手法によるモジュールの作製とその性能評価を行った.

  143. Synthesis of Thermoelectric Manganese Silicide by Mechanical Alloying and Pulse Discharge Sintering International conference

    27th International Conference on Thermoelectrics 

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    Event date: 2008.8

    Language:English   Presentation type:Oral presentation (general)  

  144. CoSb3熱電材料のナノ粒子合成とその焼結体の作製

    磯貝佳祐,伊藤孝至

    粉体粉末冶金協会平成20年度春季大会 

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    Event date: 2008.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

    本研究では、このCoSb3の熱伝導率を低減するのに,スクッテルダイト構造にゲスト原子を充填する従来の格子熱伝導率を低減する方法とは異なり,ナノ粒子から焼結体を作製することで結晶粒を微細化しフォノン散乱を引き起こして格子熱伝導率の低減を図ることを目的とする.今回,CoSb3熱電材料のナノ粒子製造をナノ粒子合成の液相法のひとつであるポリオールプロセスを用いて化学合成することによって,処理条件を変えて得られたナノ粒子の同定や形態観察を行った.そしてそのナノ粒子からパルス放電焼結法によって焼結体の作製を試みた.

  145. 新たな手法による熱電発電用モジュールの作製

    生田裕二, 伊藤孝至

    粉体粉末冶金協会平成20年度春季大会 

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    Event date: 2008.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

    本研究では熱電モジュールにおける製造コスト削減、新たな製造方法の開発を行っている。絶縁体の隔壁間に熱電素子を充填し、同時焼結することで、モジュール作製の工程の簡略化を図った。従来の作製方法のモジュールと比較するために、新たな方法で作製したモジュールの発電特性を測定、評価した。

  146. マグネシウムシリサイド化合物の合成とその熱電特性

    松野光晴,伊藤孝至

    粉体粉末冶金協会平成20年度春季大会 

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    Event date: 2008.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

    熱電材料の一つであるMg2Siは,含まれる元素のMgとSiは共に毒性がなく,尚且つ地球上に豊富に存在する点で大変有望な熱電材料である.しかし,Mg2Siの合成の困難さからその材料の性能向上に関する研究はあまり報告されていない.そこで本研究では,液相-固相反応法を用いてMg2Siの合成を種々の条件で試み,焼結条件が熱電性能に及ぼす影響を調査・検討した.

  147. 粉末の形態特性評価法および充填シミュレーション

    伊藤孝至

    全豊田焼結材料部会講演会 

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    Event date: 2008.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

    粉末の粒度分布および形状分布は,粉末冶金プロセスや製品の性質に影響を与える重要な粉末の形態特性である.粉末の粒度と形状を同時に定量評価する新しい方法や粉末の形態特性と粉末特性との関係の定量解析例について紹介する.粉末形態に関連しては,振動を利用した粒子の形状分級方法についても紹介する.また,粉末の充填特性に関連して,球形粒子群のランダム充填シミュレーションと数値計算による充填密度予測方法について紹介する.

  148. CoSb<SUB>3</SUB>熱電材料のナノ粒子合成

    磯貝佳祐,伊藤孝至

    第17回学生による材料フォーラム(日本金属学会・日本鉄鋼協会東海支部) 

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    Event date: 2007.12

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  149. Effect of Combined Addition of Silicon Carbide Whiskers and Fullerene Nanoparticles on Properties of Thermoelectric Zinc Antimonite International conference

    2007 MRS Fall Meeting 

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    Event date: 2007.11

    Language:English   Presentation type:Poster presentation  

    A Zn4Sb3 compound is a promising "phonon glass electron crystal" material applicable to thermoelectric power generation around 700K. This material, however, has a problem of its brittleness. In this research, the silicon carbide whiskers were added into the Zn4Sb3 compound for overcoming the brittleness, and the fullerene nanoparticles were also added for improving the thermoelectric performance.

  150. Polyol Process Synthesis of CoSb<SUB>3</SUB> Termoelectric Nanoparticles International conference

    International Symposium on EcoTopia Science 2007 

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    Event date: 2007.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  151. Polyol Process Synthesis of CoSb_3_ Termoelectric Nanoparticles International conference

    International Symposium on EcoTopia Science 2007 

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    Event date: 2007.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  152. Influence of Fullerene Addition on Thermoelectric Properties of Non-filled/Filled Cobalt-Skutterudite Compounds International conference

    International Symposium on EcoTopia Science 2007 

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    Event date: 2007.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  153. Effect of Acid Treatment on Removing Sodium Ions from Sodium Cobalt Oxide Thermoelectric Materials International conference

    International Symposium on EcoTopia Science 2007 

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    Event date: 2007.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  154. Effect of Acid Treatment on Removing Sodium Ions from Sodium Cobalt Oxide Thermoelectric Materials International conference

    International Symposium on EcoTopia Science 2007 

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    Event date: 2007.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  155. Influence of Fullerene Addition on Thermoelectric Properties of Non-filled/Filled Cobalt-Skutterudite Compounds International conference

    International Symposium on EcoTopia Science 2007 

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    Event date: 2007.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  156. コバルト酸ナトリウム熱電材料のナトリウムイオン除去におよぼす酸処理条件の影響

    渡辺玲雄,伊藤孝至,北川邦行

    粉体粉末冶金協会平成19年度秋季大会 

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    Event date: 2007.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  157. MA-PDS法で作製した充填コバルト系スクッテルダイト化合物の熱電特性に及ぼすフラーレン添加の影響

    石川健太,岡田 明,伊藤孝至

    粉体粉末冶金協会平成19年度秋季大会 

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    Event date: 2007.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  158. *Spark Plasma Sintering for Thermoelectric Materials International conference

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    Event date: 2007.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  159. ポリオールプロセスによる CoSb<SUB>3</SUB> 熱電材料のナノ粒子合成

    磯貝佳祐,伊藤孝至

    日本金属学会第141回秋季大会 

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    Event date: 2007.9

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  160. 廃熱を利用した熱電発電を目指して

    伊藤孝至

    テクノフェアー名大2007ミニ講演 

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    Event date: 2007.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  161. 非充填/充填型CoSb<SUB>3</SUB>系化合物の熱電特性に及ぼすフラーレン添加の影響

    石川健太,岡田 明,伊藤孝至

    日本金属学会第140回春季大会 

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    Event date: 2007.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  162. エアータッピング法によるFe-Cu混合粉末の充填に及ぼすメッシュサイズの影響

    天野裕斗,伊藤孝至,寺尾星明,金武直幸

    粉体粉末冶金協会平成18年度秋季大会 

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    Event date: 2006.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  163. ナノ粒子添加によるn型Co<SUB>0.92</SUB>Ni<SUB>0.08</SUB>Sb<SUB>2.96</SUB>Te<SUB>0.04</SUB>熱電材料の高性能化

    石川健太,岡田 明,伊藤孝至

    粉体粉末冶金協会平成18年度秋季大会 

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    Event date: 2006.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  164. SiCウィスカー強化β-Zn<SUB>4</SUB>Sb<SUB>3</SUB>熱電複合材料の機械的特性及び熱電性能

    浅利将央,岡田 明,金武直幸,伊藤孝至

    粉体粉末冶金協会平成18年度秋季大会 

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    Event date: 2006.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  165. ナノ粒子添加によるn型CoSb<SUB>3</SUB>系熱電材料の高性能化

    石川健太,伊藤孝至

    第16回学生による材料フォーラム(日本金属学会・日本鉄鋼協会東海支部) 

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    Event date: 2006.11

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  166. 廃熱を利用した熱電発電を目指して

    伊藤孝至

    テクノフェアー名大2006ミニ講演 

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    Event date: 2006.10

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  167. Prediction of Packing Density of Milled Powder Based on Packing Simulation and Particle Shape Analysis International conference

    2006 World Congress on Powder Metallurgy & Particulate Materials 

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    Event date: 2006.9

    Language:English   Presentation type:Poster presentation  

  168. CeO2微細析出物を添加したBi2Te3薄膜の熱電特性

    前田正憲, 一野祐亮, 吉田隆, 兼松大二, 長坂雄次, 須藤公彦, 中里典生, 伊藤孝至

    2006年秋季第67回応用物理学会学術講演会 

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    Event date: 2006.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  169. 粒径制御したBaZrO3を添加したSm1.98Ce0.02CuO4薄膜の熱電特性

    神谷彰, 一野祐亮, 吉田隆, 高井吉明, 伊藤孝至

    2006年秋季第67回応用物理学会学術講演会 

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    Event date: 2006.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  170. パルスレーザー蒸着法を用いて作製したn型Gd2-xPrxCuO4混晶系薄膜の熱電変換特性

    一野祐亮, 野々山公亮, 神谷彰, 吉田隆, 高井吉明, 伊藤孝至

    2006年秋季第67回応用物理学会学術講演会 

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    Event date: 2006.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  171. Performance of Segmented Thermoelectric Elements Fabricated by Simultaneous Sintering Method International conference

    25th International Conference on Thermoelectrics 

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    Event date: 2006.8

    Language:English   Presentation type:Poster presentation  

  172. Fe-Cu混合粉末の充填特性に及ぼすエアタッピング周期の影響

    天野裕斗,伊藤孝至,寺尾星明,金武直幸

    粉体粉末冶金協会平成18年度春季大会 

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    Event date: 2006.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  173. 熱電材料の研究開発と熱電発電の現状

    伊藤孝至

    日本弁理士会研修会 

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    Event date: 2005.12

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  174. 複合材料用プリカーサ作製における粉末充填シミュレーション

    天野裕斗,金武直幸,伊藤孝至

    第15回学生による材料フォーラム(日本金属学会・日本鉄鋼協会東海支部) 

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    Event date: 2005.12

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  175. 液相-固相反応法によるβ-Zn<SUB>4</SUB>Sb<SUB>3</SUB>熱電材料の合成とその熱電特性

    浅利将央,伊藤孝至

    第15回学生による材料フォーラム(日本金属学会・日本鉄鋼協会東海支部) 

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    Event date: 2005.12

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  176. パルス通電焼結法による積層n型CoSb<SUB>3</SUB>/Bi<SUB>2</SUB>Te<SUB>3</SUB>熱電素子の作製

    武藤 徹,伊藤孝至,金武直幸,北川邦行

    粉体粉末冶金協会平成17年度秋季大会 

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    Event date: 2005.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  177. 熱処理プロセスによるβ-Zn<SUB>4</SUB>Sb<SUB>3</SUB>熱電材料の合成とその熱電特性

    浅利将央,伊藤孝至,北川邦行,金武直幸

    粉体粉末冶金協会平成17年度秋季大会 

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    Event date: 2005.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  178. Fabrication of Segmented n-type CoSb<SUB>3</SUB>/Bi<SUB>2</SUB>Te<SUB>3</SUB> Thermoelectric Module and Its Performance International conference

    International Symposium on EcoTopia Science 2005 

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    Event date: 2005.8

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  179. Syntheses of Fe and La Doped CoSb<SUB>3</SUB> Thermoelectric Compounds by Pulse Discharge Sintering International conference

    International Symposium on EcoTopia Science 2005 

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    Event date: 2005.8

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  180. AgSbTe<SUB>2</SUB>/Sb<SUB>2</SUB>Te<SUB>3</SUB>/Bi<SUB>0.4</SUB>Sb<SUB>1.6</SUB>Te<SUB>3</SUB> Thermoelectric Module and Its Performance International conference

    24th International Conference on Thermoelectrics 

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    Event date: 2005.6

    Language:English   Presentation type:Poster presentation  

  181. セグメント型熱電素子のためのn型材料の合成および特性評価

    武藤 徹,伊藤孝至

    第14回学生による材料フォーラム(日本金属学会・日本鉄鋼協会東海支部) 

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    Event date: 2004.12

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  182. Bi-Te系熱電材料の圧縮ねじり成形における加工条件の影響

    濱口真崇,伊藤孝至,金武直幸

    第55回塑性加工連合講演会 

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    Event date: 2004.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  183. SPS焼結法によるAgSbTe<SUB>2</SUB>/Sb<SUB>2</SUB>Te<SUB>3</SUB>/Bi<SUB>0.4</SUB>Sb<SUB>1.6</SUB>Te<SUB>3</SUB>積層熱電素子の作製

    徳田公平,伊藤孝至,北川邦行,金武直幸

    粉体粉末冶金協会平成16年度秋季大会 

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    Event date: 2004.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  184. SPS法によるFe添加CoSb<SUB>3</SUB>スクッテルダイト化合物の合成と熱電特性

    服部英二,伊藤孝至,北川邦行

    粉体粉末冶金協会平成16年度秋季大会 

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    Event date: 2004.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  185. AgSbTe<SUB>2</SUB>系熱電材料の相変態に及ぼす熱処理条件の影響

    加藤 拓,伊藤孝至,北川邦行,金武直幸

    粉体粉末冶金協会平成16年度秋季大会 

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    Event date: 2004.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  186. Bi-Te系熱電材料の圧縮ねじり成形に及ぼす加工温度の影響

    濱口真崇,伊藤孝至,金武直幸

    日本金属学会第135回秋季大会 

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    Event date: 2004.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  187. AgSbTe<SUB>2</SUB>/Sb<SUB>2</SUB>Te<SUB>3</SUB>/Bi<SUB>0.4</SUB>Sb<SUB>1.6</SUB>Te<SUB>3</SUB>積層熱電素子の作製

    徳田公平,伊藤孝至,金武直幸,北川邦行

    第1回日本熱電学会学術講演会(TEJ2004) 

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    Event date: 2004.8

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  188. SPS法によるスクッテルダイト化合物CoSb<SUB>3</SUB>のLa添加による影響

    服部英二,伊藤孝至,北川邦行

    第1回日本熱電学会学術講演会(TEJ2004) 

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    Event date: 2004.8

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  189. AgSbTe<SUB>2</SUB>系熱電材料に及ぼすSb<SUB>2</SUB>Te<SUB>3</SUB>の影響

    加藤 拓,伊藤孝至,金武直幸,北川邦行

    第1回日本熱電学会学術講演会(TEJ2004) 

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    Event date: 2004.8

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  190. シース圧延によるBi-Te系熱電材料粉末の固化と微視組織制御

    新川嘉英,伊藤孝至,金武直幸

    平成16年塑性加工春季講演会 

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    Event date: 2004.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  191. Bi-Te 系熱電粉末材料の圧縮ねじり固化成形に及ぼす圧縮圧力の影響

    濱口真崇, 伊藤孝至, 金武直幸

    日本金属学会2004年春期(第134回)大会 

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    Event date: 2004.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  192. MA-SPS法によるAgSbTe<SUB>2</SUB>系熱電材料の合成に及ぼすMA条件の影響

    加藤 拓,伊藤孝至

    第13回学生による材料フォーラム(日本金属学会・日本鉄鋼協会東海支部) 

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    Event date: 2003.12

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  193. AgSbTe<SUB>2</SUB>/Bi<SUB>0.4</SUB>Sb<SUB>1.6</SUB>Te<SUB>3</SUB>積層熱電素子の作製と特性評価

    徳田公平,伊藤孝至

    第13回学生による材料フォーラム(日本金属学会・日本鉄鋼協会東海支部) 

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    Event date: 2003.12

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  194. MA-SPS法によるCoSb<SUB>3</SUB>熱電材料の合成と特性評価

    伊藤孝至, 山下 剛, 単 佳義, 北川邦行

    粉体粉末冶金協会平成15年度秋季大会 

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    Event date: 2003.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  195. C/Cコンポジットのためのアルミナと釉を用いた多層耐酸化コーティング

    沈 慶春, 単 佳義, 伊藤孝至, 北川邦行, 片桐晴郎

    粉体粉末冶金協会平成15年度秋季大会 

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    Event date: 2003.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  196. アルミニウム金属粉末の圧延固化成形に及ぼすシース形状の影響

    新川嘉英, 伊藤孝至, 金武直幸

    日本金属学会2003年秋期(第133回) 

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    Event date: 2003.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  197. Fabrication of Layered p-type AgSbTe<SUB>2</SUB>-(Bi,Sb)<SUB>2</SUB>Te<SUB>3</SUB> thermoelectric module and its performance International conference

    The 22nd International Conference on Thermoelectrics, La Grande Motte, France 

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    Event date: 2003.8

    Language:English   Presentation type:Poster presentation  

  198. MA-SPS法によるβ‐Zn<SUB>4</SUB>Sb<SUB>3</SUB>熱電材料の合成

    単 佳義, 伊藤孝至, 北川邦行

    熱電変換シンポジウム'03(TEC2003) 

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    Event date: 2003.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  199. SPS法を用いたAgSbTe<SUB>2</SUB>/Bi<SUB>2</SUB>Te<SUB>3</SUB>積層熱電素子の作製と性能評価

    徳田公平, 久保雅崇, 伊藤孝至, 金武直幸, 北川邦行

    熱電変換シンポジウム'03(TEC2003) 

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    Event date: 2003.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  200. MA-SPS法によるAgSbTe<SUB>2</SUB>系熱電材料の合成に及ぼすMA条件の影響

    加藤 拓, 単 佳義, 伊藤孝至, 金武直幸, 北川邦行

    熱電変換シンポジウム'03(TEC2003) 

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    Event date: 2003.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  201. Microstructural Dependency of Soft Magnetism in a Sintered Stainless Fe-12%Cr Alloy International conference

    2003 International Conference on Powder Metallurgy & Particulate Materials, Las Vegas, U.S.A 

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    Event date: 2003.6

    Language:English   Presentation type:Oral presentation (general)  

  202. 圧縮ねじり負荷によるBi-Te系熱電粉末材料の成形と微視組織

    門井 崇, 伊藤孝至, 金武直幸

    第53回塑性加工連合講演会 

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    Event date: 2002.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  203. Bi-Te 系熱電粉末材料の微視組織に及ぼす圧縮ねじり負荷方法の影響

    門井 崇, 伊藤孝至, 金武直幸

    日本金属学会秋期大会講演概要(第131回) 

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    Event date: 2002.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  204. 高効率エネルギー変換を目指して

    北川邦行, 伊藤孝至, 古畑朋彦

    日本原子力学会「先端科学と原子力技術」研究専門委員会 平成14年度第1回研究専門委員会 

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    Event date: 2002.5

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  205. 圧縮ねじり成形したBi-Te系熱電粉末材料の組織と特性

    門井 崇, 伊藤孝至, 金武直幸

    日本金属学会春期大会講演概要(第130回) 

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    Event date: 2002.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  206. 熱電変換材料の組織制御に関する研究

    伊藤孝至

    名古屋大学高温エネルギー変換研究センター第10回センター公開セミナー 

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    Event date: 2002.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  207. アルミニウム合金の圧縮ねじり繰り返し負荷による結晶粒微細化に及ぼす負荷条件の影響

    青野圭太朗, 伊藤孝至, 金武直幸

    軽金属学会第101回秋期大会講演 

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    Event date: 2001.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  208. 自動車用PM軟磁性合金について

    草加勝司, 鰐部吉基, 伊藤孝至

    粉体粉末冶金協会平成13年度秋季大会 

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    Event date: 2001.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  209. 熱間鍛造による高強度アルミニウム合金粉末の直接固化成形

    安藤 勤, 伊藤孝至, 金武直幸

    軽金属学会第101回秋期大会講演 

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    Event date: 2001.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  210. 気孔の定量評価

    鰐部吉基, 伊藤孝至,横山誠二, 草加勝司

    粉体粉末冶金協会平成13年度秋季大会 

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    Event date: 2001.10

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  211. 平面ひずみ鍛造による高強度アルミニウム合金粉末の固化挙動

    安藤 勤, 伊藤孝至, 金武直幸

    第52回塑性加工連合講演会 

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    Event date: 2001.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  212. 圧縮ねじり繰り返し負荷による純アルミニウムの結晶粒微細化

    青野圭太郎, 伊藤孝至, 金武直幸

    第52回塑性加工連合講演会 

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    Event date: 2001.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  213. 断面像と投影像に基づく鉄粉形態の定量特性に生じる差とそのシミュレーション

    伊藤孝至, 鰐部吉基

    粉体・粉末冶金協会焼結基礎分科会「技術・品質評価委員会」第19回会議 

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    Event date: 2001.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  214. Simulation for Estimation of Morphology of Projected Image from Sectioned Image of Iron Powder Particles International conference

    2001 International Conference on Powder Metallurgy & Particulate Materials, New Orleans, U.S.A. 

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    Event date: 2001.5

    Language:English   Presentation type:Oral presentation (general)  

  215. 圧縮ねじり繰り返し負荷による純アルミニウムの結晶粒微細化

    青野圭太郎, 伊藤孝至, 金武直幸

    軽金属学会第100回春期大会講演 

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    Event date: 2001.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  216. 高温平面ひずみ圧縮による高強度アルミニウム合金粉末の固化

    安藤 勤, 伊藤孝至, 金武直幸

    軽金属学会第100回春期大会講演 

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    Event date: 2001.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  217. 粉末鍛造および焼鈍したBi-Te系熱電材料の組織と特性

    細川智浩, 伊藤孝至, 金武直幸

    日本金属学会春期大会講演(第128回) 

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    Event date: 2001.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  218. 多孔性について

    鰐部吉基, 伊藤孝至, 横山誠二

    粉体・粉末冶金協会焼結基礎分科会「技術・品質評価委員会」第18回会議 

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    Event date: 2001.1

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  219. Fundamental Essences in New Quantitative Approach to Powder Technology International conference

    International Workshop on Advanced Powder Metallurgy - a satellite meeting of P/M 2000 Kyoto 

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    Event date: 2000.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  220. Shape Separation of Powder Particles and Simulation International conference

    2000 Powder Metallurgy World Congress 

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    Event date: 2000.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  221. Characterization of Pores for Specific Properties in P/M Soft Magnetic Materials International conference

    2000 Powder Metallurgy World Congress 

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    Event date: 2000.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  222. Simulation for Estimation of Morphology of Projected Image from Sectioned Image of Iron Powder Particles

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    Event date: 2000.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  223. Simulation for Estimation of Morphology of Projected Image from Sectioned Image of Iron Powder Particles International conference

    2000 International Conference on Powder Metallurgy & Particulate Materials, New York, U.S.A 

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    Event date: 2000.6

    Language:English   Presentation type:Oral presentation (general)  

  224. 介在粒子の投影と切断による形態計測とそのシミュレーション

    伊藤孝至, 鰐部吉基

    日本鉄鋼協会評価・分析・解析部会自主フォーラム「分散析出相の定量評価」第6回研究会 

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    Event date: 2000.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  225. シミュレーションによる粉粒体の断面像から推定する投影像の形態的特性

    伊藤孝至,鰐部吉基

    粉体粉末冶金協会平成11年度秋季大会 

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    Event date: 1999.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  226. 耐火物に関する定量研究について

    鰐部吉基, 伊藤孝至

    日本鉄鋼協会評価・分析・解析部会自主フォーラム「分散析出相の定量評価」第5回研究会 

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    Event date: 1999.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  227. 介在物粒度および形状迅速評価技術

    磯野貴宏, 伊藤孝至,宮沢憲一, 鰐部吉基

    学振19委-11822,製鋼計測化学-Ⅱ-41 

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    Event date: 1999.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  228. 粉末の粒子形状に基づく分級に関する技術開発と評価

    鰐部吉基, 伊藤孝至

    粉体・粉末冶金協会焼結基礎分科会「焼結機構委員会」と「射出成形委員会」,日本鉄鋼協会創形創質部会「粉体工学フォーラム」および「粉末焼結分科会」共催「焼結の科学と技術」講演会 

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    Event date: 1999.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  229. Measurement and Simulation of Morphological Characteristics on Projected and Sectioned Images of Iron Powder Particles International conference

    1999 International Conference on Powder Metallurgy & Particulate Materials, Vancouver, Canada 

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    Event date: 1999.6

    Language:English   Presentation type:Oral presentation (general)  

  230. ソフト磁性材料の磁気特性と気孔形態の関係

    伊藤孝至,草加勝司, 鰐部吉基

    粉体粉末冶金協会平成11年度春季大会 

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    Event date: 1999.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  231. 粉末冶金用粉体の形状に基づく分級に関する技術開発と評価

    伊藤孝至,鰐部吉基

    粉体粉末冶金協会平成11年度春季大会 

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    Event date: 1999.6

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  232. 粉末粒子の形態キャラクタリゼーションにおける切断像と投影像に基づく定量特性の差異とそのシミュレーション

    鰐部吉基, 伊藤孝至

    粉体・粉末冶金協会焼結基礎分科会「焼結機構委員会」と「射出成形委員会」,日本鉄鋼協会創形創質部会「粉体工学フォーラム」および「粉末焼結分科会」共催「焼結の科学と技術」講演会 

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    Event date: 1998.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  233. 金属粉末の圧粉成形挙動に及ぼす粉末形態特性の影響

    伊藤孝至,鰐部吉基

    粉体粉末冶金協会平成10年度春季大会 

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    Event date: 1998.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  234. 分散相の新定量解析法

    鰐部吉基, 伊藤孝至

    日本鉄鋼協会評価・分析・解析部会「鋼中介在物・析出物分析評価」フォーラム第1回会議 

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    Event date: 1997.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  235. 析出物・介在物の形態シミュレーション

    伊藤孝至, 鰐部吉基

    日本鉄鋼協会評価・分析・解析部会自主フォーラム「分散析出相の定量評価」第2回研究会 

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    Event date: 1997.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  236. 粉末の分級における形態評価

    中村佳道, 伊藤孝至,鰐部吉基

    粉体粉末冶金協会平成9年度秋季大会 

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    Event date: 1997.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  237. 粉粒体の形態特性に基づく流動と充填の定量解析

    伊藤孝至, 鰐部吉基

    日本鉄鋼協会第134回秋季講演大会創形創質工学部会討論会「粉体の流動,充填および成形」 

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    Event date: 1997.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  238. 介在物の形態定量

    鰐部吉基, 伊藤孝至

    日本鉄鋼協会評価・分析・解析部会自主フォーラム「分散析出相の定量評価」第1回研究会 

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    Event date: 1997.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  239. Random Packing Simulation of Spheres and Practical Application for Real Powders International conference

    International Workshop on Modeling of Metal Powder Forming Processes, Grenoble, France 

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    Event date: 1997.7

    Language:English   Presentation type:Oral presentation (general)  

  240. 粉粒体の切断面と投影像間の形態特性の差異に関するシュミレーション

    伊藤孝至,鰐部吉基, 水野通利

    粉体粉末冶金協会平成9年度春季大会 

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    Event date: 1997.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  241. 充填シミュレーションと粉粒体の形態的な特徴による充填密度の予測

    中村佳道, 伊藤孝至,鰐部吉基

    粉体粉末冶金協会平成8年度秋季大会 

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    Event date: 1996.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  242. 粉末プロセシングにおける定量評価

    鰐部吉基,伊藤孝至

    日本鉄鋼協会第132回秋季講演大会創形創質部会粉粒体フォーラムシンポジウム「鉄鋼の粉末冶金における新しい展開」 

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    Event date: 1996.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  243. Morphological Characterization of Iron Powders and The Estimating of Density Through Random Packing Simulation International conference

    1996 World Congress on Powder Metallurgy & Particulate Materials, Washington D.C., U.S.A 

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    Event date: 1996.6

    Language:English   Presentation type:Oral presentation (general)  

  244. 粉末技術の新しい考え方

    鰐部吉基, 伊藤孝至

    愛知県工業技術センター講習会「粉末技術の新しい展開」 

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    Event date: 1996.2

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  245. 粒度-形状分散図における個数基準と質量基準の相互関係

    伊藤孝至,鰐部吉基

    学振19委-11622,製鋼計測化学-Ⅱ-35 

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    Event date: 1996.1

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  246. 短繊維および粒子の特性によるそれらの混合充填体の密度解析

    伊藤孝至, 鰐部吉基,黒田浩治

    粉体粉末冶金協会焼結基礎分科会「焼結機構委員会」および日本鉄鋼協会創形創質部会「粉体工学フォーラム」共催「焼結の科学と技術」講演会 

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    Event date: 1995.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  247. 短繊維および粒子の特性によるそれらの混合充填体の密度解析

    伊藤孝至,黒田浩治, 鰐部吉基

    粉体粉末冶金協会平成7年度春季大会 

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    Event date: 1995.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  248. 介在物形態(粒度・形状)に関する新定量解析法

    鰐部吉基, 伊藤孝至

    日本金属学会分科会シンポジウム「金属中の介在物評価技術の現状と展望」 

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    Event date: 1995.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  249. 短繊維のキャラクタリゼーションと粉末との混合充填体の密度解析

    伊藤孝至,鰐部吉基

    粉体粉末冶金協会平成6年度春季大会 

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    Event date: 1994.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  250. 金属粉末の流動に及ぼす粒子特性の影響

    伊藤孝至,鰐部吉基

    粉体粉末冶金協会平成6年度春季大会 

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    Event date: 1994.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  251. Characterization of Short Fibers and Packing Densities of Its Mixtures with Powders International conference

    1994 International Conference & Exhibition on Powder Metallurgy & Particulate Materials, Toronto, Canada 

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    Event date: 1994.5

    Language:English   Presentation type:Oral presentation (general)  

  252. 分散粒子の諸特性(粒度・形状およびそれらの分布)が充填挙動に及ぼす影響量について

    鰐部吉基, 伊藤孝至,F. Oeters, E. Boschatzke

    学振19委-11474,反応プロセス-22 

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    Event date: 1994.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  253. 分散粒子の諸特性(粒度・形状およびそれらの分布)が充填挙動に及ぼす影響量について

    伊藤孝至,鰐部吉基

    学振19委介在-62 

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    Event date: 1994.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  254. 大学と企業との共同研究

    鰐部吉基, 伊藤孝至

    粉体・粉末冶金協会焼結基礎分科会「技術・品質評価委員会」第6回会議 

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    Event date: 1993.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  255. 新しいキャラクタリゼーション法に基づく介在物形態の定量

    鰐部吉基, 伊藤孝至,梅沢一誠, 塗 嘉夫

    学振19委介在-5-34 

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    Event date: 1993.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  256. 粉末と粉末プロセスに関する定量的解析の研究

    伊藤孝至,鰐部吉基

    粉体粉末冶金協会平成5年度秋季大会 

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    Event date: 1993.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  257. Size Distribution of Non-Spherical Objects from Measurements Made on Random Plane Sections and of Pfrojected Shadows International conference

    1993 Powder Metallurgy World Congress, Kyoto 

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    Event date: 1993.7

    Language:English   Presentation type:Oral presentation (general)  

  258. Estimation of Density in Packed Beds of Non-Spherical Particles through New Modeling International conference

    1993 Powder Metallurgy World Congress, Kyoto 

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    Event date: 1993.7

    Language:English   Presentation type:Oral presentation (general)  

  259. 切断研磨面上の計測による非球状粒子群の粒度分布解析

    鰐部吉基,伊藤孝至,寺田好晴, 大原隆司

    学振19委-11432,化Ⅱ-1-19 

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    Event date: 1993.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  260. 短繊維のキャラクタリゼーション

    鰐部吉基, 伊藤孝至

    粉体・粉末冶金協会焼結基礎分科会「技術・品質評価委員会」第3回会議 

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    Event date: 1993.4

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  261. 粉末の粒子特性と流動性

    伊藤孝至, 鰐部吉基

    粉体・粉末冶金協会焼結基礎分科会「技術・品質評価委員会」第3回会議 

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    Event date: 1993.4

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  262. 粒子単層法による粉末粒子形状の定量化

    伊藤孝至,鰐部吉基

    粉体粉末冶金協会平成4年度秋季大会 

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    Event date: 1992.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  263. 不均一な材料とプロセスの定量解析

    鰐部吉基,伊藤孝至,坂尾 弘

    学振19委-11323,反応-764 

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    Event date: 1992.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  264. キャラクタリゼーションの必要性

    鰐部吉基, 伊藤孝至

    粉体・粉末冶金協会焼結基礎分科会「技術・品質評価委員会」第1回会議 

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    Event date: 1992.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  265. 粉末の定量指標と充填密度

    伊藤孝至,鰐部吉基

    粉体・粉末冶金協会焼結基礎分科会「技術・品質評価委員会」第1回会議 

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    Event date: 1992.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  266. 金属粉末の粒子特性を考慮した充填体モデルによる充填密度解析

    伊藤孝至,鰐部吉基

    粉体粉末冶金協会平成4年度春季大会 

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    Event date: 1992.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  267. 切断研磨面上の計測による非球状粒子群の粒度分布解析

    鰐部吉基,伊藤孝至,寺田好晴,大原隆司

    粉体粉末冶金協会平成4年度春季大会 

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    Event date: 1992.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  268. Particle Size-Shape Dispersion Diagram and Its Application for Packing Density of Metallic Powders International conference

    5th European Symposium of Particle Characterization, Nuernberg, Germany 

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    Event date: 1992.3

    Language:English   Presentation type:Oral presentation (general)  

  269. Quantitative analysis in heterogeneous materials and processing International conference

    5th European Symposium of Particle Characterization, Nuernberg, Germany 

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    Event date: 1992.3

    Language:English   Presentation type:Oral presentation (general)  

  270. 金属粉末の粒度,形状およびそれらの分布が及ぼす充てん密度への影響

    伊藤孝至,鰐部吉基,寺田好晴,宮入茂俊

    粉体粉末冶金協会平成3年度春季大会 

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    Event date: 1991.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  271. 粒子形状分布と粒度-形状分散図

    伊藤孝至,鰐部吉基

    学振19委介在-15 

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    Event date: 1990.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  272. 金属粉末の粒子形状モデルと粒度-形状分散図

    伊藤孝至,鰐部吉基

    粉体粉末冶金協会平成2年度秋季大会 

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    Event date: 1990.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  273. 溶湯の衝撃噴霧に関する基礎解析

    伊藤孝至, 鰐部吉基

    粉体粉末冶金協会平成2年度春季大会 

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    Event date: 1990.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

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Research Project for Joint Research, Competitive Funding, etc. 23

  1. マンガンシリサイドを用いた熱電変換モジュールの開発

    2013.7 - 2014.3

    栃木県ものづくり技術強化補助金 

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    Grant type:Competitive

    熱電変換技術は排熱を利用付加価値の高い電気エネルギーに変換し利用できる技術であり、経済産業省が作成した2010技術戦略マップ中では「総合エネルギー効率の向上」及び「新エネルギーの開発・導入促進」に寄与する技術の1つに位置づけられ、実用化と普及が期待されているエネルギー利用効率向上に資する技術として期待されている。
    しかしながら、これまで研究されてきた熱電変換材料は、その構成元素の資源量、毒性、価格おいて、また、高温での耐熱性等に問題を抱えており、これらに問題のない熱電変換材料による量産可能な熱電変換モジュールの開発が求められている。また、近年では、より小さなスペース(例えば、自動車用途等)にも設置可能な出力密度の高い熱電変換モジュールが求められており、耐熱性、発電性能の両面での改善が必要とされている。
    そこで、我々は昨年度に開発を行ったユニレグ型モジュールと比較して、出力密度を高めることに有利なΠ型構造の熱電変換モジュールの開発を行い、Π型モジュールの欠点である高温使用時の耐久性を改善し、耐熱性環境低負荷熱電発電モジュールの実用化を目指すことを目的として開発を行う。

  2. シリサイド系熱電変換モジュールの開発

    2013.4 - 2019.3

    国内共同研究 

  3. マンガンシリサイド熱電材料の熱電性能並びに生産性の向上に関する研究

    2013.1 - 2015.3

    国内共同研究 

  4. 安価な実用Mg合金を出発原料に用いたシリサイド系熱電変換モジュールの開発

    2011.10 - 2012.9

    A-STEPフィージビリティスタディ シーズ顕在化タイプ 

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    Grant type:Competitive

  5. 排熱発電モジュールとDCコンバータの高性能化と実用化検証

    2010.6 - 2012.4

    長野県テクノ財団・技術シーズ育成事業 

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    Grant type:Competitive

  6. 廃熱発電を目指したZn4Sb3バルク熱電材料の押出し成形と性能評価

    2010.6 - 2012.3

    国内共同研究 

  7. 拡散接合法による金属系熱電発電モジュールの作製

    2010.6 - 2012.3

    国内共同研究 

  8. シリサイド系熱電変換モジュールの開発

    2010.4 - 2013.3

    国内共同研究 

  9. 環境共生型熱電発電用モジュールの開発

    2010.4 - 2012.3

    国内共同研究 

  10. 熱電材料および熱電モジュールに関する基礎研究

    2009.4 - 2014.3

    国内共同研究 

  11. 極低温用熱電変換モジュールおよびシステムの開発

    2009.4 - 2010.3

    国内共同研究 

  12. 極低温用熱電変換モジュールおよびシステムの開発

    2008.4 - 2010.3

    エコトピア科学研究所所長裁量経費 

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    Grant type:Competitive

  13. 新複合材料によるインバータ用放熱部品の開発

    2007.4 - 2009.3

    国内共同研究 

  14. 粉末形状および粒度分布に関する定量解析

    2007.4 - 2008.3

  15. 国際会議発表のための海外渡航助成

    2006.6

  16. 奨学寄附金

    2005.5 - 2006.3

  17. 高効率熱電変換素子材料に関する研究

    2004.10 - 2008.3

    企業からの受託研究 

  18. 熱発電モジュールを用いた排熱回収装置の高効率化

    2004.10 - 2005.3

    国内共同研究 

  19. 新複合材料によるインバータ用放熱部品の開発

    2004.8 - 2006.3

    経済産業局・地域新生コンソーシアム研究開発事業 

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    Grant type:Competitive

  20. 奨学寄附金

    2003.6 - 2004.3

  21. 永井科学技術財団賞「学術賞」

    2001.3

  22. 萌芽的研究助成

    1998.10

  23. 国際会議発表のための海外渡航助成

    1992.6

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KAKENHI (Grants-in-Aid for Scientific Research) 7

  1. 接触熱コンダクタンスの改善および形状付与による熱電モジュールの高変換効率化

    2004.4 - 2006.3

    科学研究費補助金  萌芽研究,課題番号:16656298

    伊藤 孝至

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    Authorship:Principal investigator 

  2. 粉末プロセス工学における新定量解析法の構築とその応用

    1999.4 - 2003.3

    科学研究費補助金  基盤研究(B)

    鰐部吉基

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    Authorship:Coinvestigator(s) 

  3. 圧縮・せん断複合負荷による高機能軽金属粉末の組織制御成形法

    1999.4 - 2002.3

    科学研究費補助金  基盤研究(B)

    金武直幸

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    Authorship:Coinvestigator(s) 

  4. In situ oxidation複合材料における界面反応の解析

    1992.4 - 1993.3

    科学研究費補助金  重点領域研究

    長隆郎

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    Authorship:Coinvestigator(s) 

  5. 粒子/溶融メタル界面現象解析・制御による粒子分散強化型アルミニウム複合材料製造

    1991.4 - 1992.3

    科学研究費補助金  重点領域研究

    長隆郎

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    Authorship:Coinvestigator(s) 

  6. 金属粉末の粒子形状に関する基礎的研究

    1989.4 - 1990.3

    科学研究費補助金  奨励研究(A)

    伊藤孝至

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    Authorship:Principal investigator 

  7. 焼結用粉末材料の圧粉過程における基礎研究

    1987.4 - 1988.3

    科学研究費補助金  奨励研究(A)

    伊藤孝至

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    Authorship:Principal investigator 

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Industrial property rights 3

  1. 熱電変換モジュール及びその製造方法

    伊藤孝至,佐藤純一,武田喜男,田頭健司

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    Applicant:名古屋大学総長,日本サーモスタット㈱,コトヒラ工業㈱

    Application no:2012- 070091  Date applied:2012.3

    Announcement no:2013-201382 

    Country of applicant:Domestic  

    マンガンシリサイドからなる熱電変換素子と、電極と、該熱電変換素子と該電極との間に配設されたCr-Cu合金からなる応力緩和層とを備える熱電変換モジュールであって、該熱電変換素子と該応力緩和層との間に、Niからなり、該応力緩和層を構成するCrとCuとの該熱電変換素子への拡散を防止する拡散防止層を備えることを特徴とする熱電変換モジュール。

  2. Thermoelectric material formed of Mg2Si-based compound and production method therefor

    Takashi Itoh, Kento Hagio

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    Application no:13/317848 (US)  Date applied:2011.10

    Announcement no:US2012/0114517A1 

    Patent/Registration no:9115420 (US)  Date registered:2015.8 

    Country of applicant:Domestic  

  3. Mg2Si基化合物から成る熱電材料及びその製造方法

    伊藤孝至, 萩尾建門

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    Applicant:名古屋大学総長,日立化成工業㈱

    Application no:2010-249891  Date applied:2010.11

    Announcement no:2012-104558 

    Patent/Registration no:5641474  Date registered:2014.11 

    Country of applicant:Domestic  

    本発明は、Mg2Si基化合物の熱電材料及びその製造方法に関する。特に、Mg2Si基化合物の合成には、Al, Zn及びMnを合金成分として含有するMg合金を原材料に使用し、それらの元素をドーパントとしたMg2Si基化合物の熱電材料と、液相-固相反応法と焼結を組合せた熱電材料の製造方法に関する。

 

Teaching Experience (On-campus) 32

  1. 数学2及び演習

    2020

  2. 熱移動と拡散

    2020

  3. エネルギー変換工学

    2020

  4. 数学2及び演習

    2019

  5. 熱移動と拡散

    2019

  6. 熱移動と拡散

    2018

  7. 数学2及び演習

    2018

  8. 数学2及び演習

    2017

  9. 数学2及び演習

    2016

  10. 基礎セミナーA

    2016

  11. 基礎セミナーA

    2015

  12. 数学2及び演習

    2015

  13. Seminar on Control of Materials Structure

    2015

  14. 基礎セミナーA

    2014

  15. 数学2及び演習

    2014

  16. Seminar on Control of Materials Structure

    2014

  17. 基礎セミナーA

    2013

  18. Seminar on Control of Materials Structure

    2013

  19. 数学2及び演習

    2013

  20. 微粒子材料学

    2013

  21. Seminar on Control of Materials Structure

    2012

  22. 数学2及び演習

    2012

  23. 微粒子材料学

    2012

  24. 数学2及び演習

    2011

  25. 微粒子材料学

    2011

  26. マテリアル工学1

    2011

  27. Seminar on Control of Materials Structure

    2011

  28. マテリアル工学1

    2010

  29. Seminar on Control of Materials Structure

    2010

  30. Seminar on Control of Materials Structure

    2009

  31. Powder Metallurgy

    2009

  32. Mathmatics 2 with Exercies

    2009

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