2025/10/15 更新

写真a

キム　ダソム
KIM Dasom
KIM Dasom
所属
大学院工学研究科 材料デザイン工学専攻 ナノ構造設計 助教
大学院担当
大学院工学研究科
学部担当
工学部 マテリアル工学科
職名
助教

学位 1

  1. 低酸素粉末冶金法による機械的・電気的特性の高いAl-CNT複合材料 の開発 （ 2023年3月   名古屋大学 ） 

学位の先頭へ▲

学歴 3

  1. 名古屋大学   物質プロセス工学部

    2019年10月 - 2023年3月

  2. Pukyong National University   Advanced Materials System Engineering

    2017年9月 - 2019年8月

  3. Pukyong National University   Advanced Materials System Engineering

    2013年3月 - 2017年2月

学歴の先頭へ▲

受賞 4

  1. 優秀ポスター賞

    2025年3月   公益社団法人日本金属学会   レーザー粉末溶融結合法によるCuCrZr合金造形体の組織と強度に及ぼす熱勝利の影響

    　詳細を見る

    受賞区分：国内学会・会議・シンポジウム等の賞  受賞国：日本国

  2. Oral Presentation Excellence Prize

    2019年5月   Korean Society for Powder System Engineering  

  3. Poster Presentation Excellence Prize

    2018年11月   Korean Society for Composites Materials  

    　詳細を見る

    受賞区分：国内学会・会議・シンポジウム等の賞 

  4. Poster Presentation Excellence Prize

    2017年10月   Korean Institute of Metals and Materials  

    　詳細を見る

    受賞区分：国内学会・会議・シンポジウム等の賞 

受賞の先頭へ▲
 

論文 23

  1. Preparation of nanoparticles of heavy-fermion superconductor CeCoIn<sub>5</sub> by pulsed laser ablation in liquid

    Obata, Y; Takada, H; Usami, R; Ninomiya, R; Kim, D; Takata, N; Miyajima, Y; Yoshida, Y

    JAPANESE JOURNAL OF APPLIED PHYSICS   64 巻 ( 9 )   2025年9月

    　詳細を見る

    出版者・発行元：Japanese Journal of Applied Physics Part 1 Regular Papers and Short Notes and Review Papers  

    Nanoparticles of Ce-based intermetallic heavy-fermion superconductor CeCoIn<inf>5</inf> with roughly 500 nm diameter were fabricated via pulsed laser ablation in pure water using Nd:YAG laser. Despite the surface oxidization and chemical inhomogeneity of the grown products, microstructural analysis confirms the presence of stoichiometric CeCoIn<inf>5</inf> nanoparticles, demonstrating that they are ready to be tested as a possible candidate for thermally stable and corrosion-resistant materials.

    DOI： 10.35848/1347-4065/adf9ac

    Web of Science

    Scopus

  2. Effect of hydrogen on dynamic precipitation in additively manufactured aluminum alloys: Evidence for HEENT mechanism Open Access

    Safyari, M; Takata, N; Kim, D; Khonsari, MM; Moshtaghi, M

    JOURNAL OF ALLOYS AND COMPOUNDS   1027 巻   2025年5月

    　詳細を見る

    出版者・発行元：Journal of Alloys and Compounds  

    The influence of hydrogen on the dynamic precipitation and morphology of Si particles in additively manufactured Al-12Si alloys was experimentally and numerically investigated. For the first time, hydrogen was observed to transform Si precipitates from globular to plate-like morphologies, with an increase in yield strength when the hydrogen content exceeds a critical value. Computational analysis indicated that the interface of Si particles could act as potential hydrogen traps, as suggested by density functional theory (DFT) calculations. Thermodynamic insights revealed that hydrogen likely increases interfacial entropy, stabilizes coherent interfaces, and reduces interfacial energy. These findings are consistent with the HEENT mechanism, which explains how hydrogen-enhanced entropy contributes to microstructural changes and alters the mechanical properties of metals. These findings suggest that hydrogen can influence precipitate morphology through its combined effects on thermodynamic stability and kinetic processes, offering new insights into the behavior of additively manufactured aluminum alloys under hydrogen exposure.

    DOI： 10.1016/j.jallcom.2025.180395

    Open Access

    Web of Science

    Scopus

  3. 溶融Zn–55%Al合金めっき鋼板の固液界面反応に及ぼすSi添加の役割 Open Access

    大見 泰央, KIM Dasom, 髙田 尚記, 鈴木 飛鳥, 小橋 眞, 米田 鈴枝

    鉄と鋼   111 巻 ( 6 ) 頁： 315 - 325   2025年4月

    　詳細を見る

    記述言語：日本語   出版者・発行元：一般社団法人 日本鉄鋼協会  

    This study was set to fundamentally understand the effect of Si addition on the interfacial reaction between Zn–55%Al alloy liquid (corresponding to a nominal composition of Al–25Zn (at%)) and Fe solid in the production process of GALVALUME steel sheets. The pure Fe sheets were hot-dipped in Al–25Zn and Al–25Zn–2Si (at%) alloy melts at 600, 650, and 700°C for 2~3600 s. Significantly thick coatings were formed on Fe sheets hot-dipped in the Al–25Zn binary alloy melt for a longer time than 10 s. The coating thickness became several millimeters after 30 s, resulting in a delamination of the coating. The significant Fe dissolution occurred in the Al–Zn binary alloy melt, accompanied by a significant growth of η phase (Fe<inf>2</inf>Al<inf>5</inf>) toward the solid Fe. The growth could be promoted by the Zn-rich liquid phase with a lower melting temperature. However, in the case of hot-dipping in the Al–25Zn–2Si ternary alloy melt, uniform coatings were formed on the hot-dipped Fe sheets due to the suppressed interfacial reactions. The Fe dissolution slightly occurred, and a continuous layer of Si-rich T<inf>5</inf> (Fe<inf>2</inf>Al<inf>7.4</inf>Si) phase was formed at the interface of solid Fe with the Al–25Zn–2Si alloy melt. The continuous T<inf>5</inf> phase layer would play a role in a diffusion barrier at the interface of solid Fe with liquid Al–Zn alloy, resulting in the suppressed interfacial reaction. These interfacial reaction processes are discussed based on thermodynamic calculations of the Fe–Al–Zn ternary and Fe–Al–Zn–Si quaternary systems.

    DOI： 10.2355/tetsutohagane.tetsu-2024-097

    Open Access

    Scopus

    CiNii Research

  4. Anomalous temperature-dependent strength of copper alloy manufactured by laser-beam powder bed fusion Open Access

    Kim, D; Takata, N; Umeda, J; Shimizu, T; Kobashi, M

    ADDITIVE MANUFACTURING LETTERS   11 巻   2024年12月

    　詳細を見る

    出版者・発行元：Additive Manufacturing Letters  

    This study reports an anomalous temperature-dependent tensile behavior of laser-beam powder bed fusion (PBF-LB) processed Cu–Cr–Zr alloy. The yield strength of the alloy initially decreases as the temperature increases to 200±5 MPa and then increases to 350±11 MPa at 500°C before reducing to 234±6 MPa at 600°C. The microstructure consists of elongated Cu grains with a high concentration of Cr solute (∼1 mass%), resulting from rapid solidification during the PBF-LB process. Transmission electron microscopy for the specimens deformed at 500°C revealed the presence of numerous nanoscale Cr-rich particles embedded inside the supersaturated solid solution of the Cu matrix. Nanoscale particles can act as barriers to dislocation motion, leading to an increase in internal stress during plastic deformation at elevated temperatures. This work provides the high potential of post heat treatments for achieving superior mechanical performance using high solute supersaturation formed by the PBF-LB process.

    DOI： 10.1016/j.addlet.2024.100236

    Open Access

    Web of Science

    Scopus

  5. Four-dimensional electrochemical impedance spectroscopy: Role of microstructure on corrosion behaviour of Al-Si alloys additive-manufactured by laser powder bed fusion Open Access

    Hoshi, Y; Miyazawa, R; Otani, Y; Kim, D; Takata, N; Kobashi, M

    CORROSION SCIENCE   232 巻   2024年5月

    　詳細を見る

    出版者・発行元：Corrosion Science  

    Four-dimensional (4D) electrochemical impedance spectroscopy was applied to clarify the role of microstructures on the corrosion behaviour of Al-Si alloys additively manufactured by laser powder bed fusion in the immersion of NaCl solution. 3D complex impedance plots, comprising real, imaginary, and time axes, indicate that the impedance increases gradually at initial stage and then does not show apparent time variation. These behaviours, following surface morphology analysis, are strongly related to the remaining fine silicon particles on the surface due to the preferential Al dissolution, which suppress the further dissolution from underlying along with the protective oxide film formation.

    DOI： 10.1016/j.corsci.2024.112018

    Open Access

    Web of Science

    Scopus

  6. Production of sub-micron-sized high-entropy alloy particles and nanoparticles via pulsed laser ablation of CrMnFeCoNi targets in water

    Ninomiya, R; Kim, D; Takata, N; Lyth, SM; Ishikawa, K; Miyajima, Y

    APPLIED PHYSICS LETTERS   124 巻 ( 20 )   2024年5月

    　詳細を見る

    出版者・発行元：Applied Physics Letters  

    High-entropy alloys (HEAs) are a class of materials known for their unique properties, including high strength, excellent wear resistance, and good corrosion resistance. Sub-micron- and nanosized HEA particles were fabricated via pulsed laser ablation in liquid using a Cantor alloy target. The Cr<inf>20</inf>Mn<inf>20</inf>Fe<inf>20</inf>Co<inf>20</inf>Ni<inf>20</inf> target was immersed in pure water and ablated using a focused nanosecond-pulsed Nd: YAG laser. A dark solution containing HEA particles was obtained which was stable for about one week before agglomeration and precipitation was observed. The diameters of the obtained particles ranged from several tens of nanometers to several hundred nanometers. Increasing the laser power resulted in higher particle concentration and an increase in the intensity of UV-vis absorption spectra. Electron diffraction was used to confirm that the composition of the particles was close to that of the Cantor alloy, although the concentrations of Cr and Mn were slightly deficient. There was also a weak dependence of the composition on laser power, and all the particles also contained oxygen. Selected area electron diffraction revealed that the composition varied spatially within some particles and that they are mainly polycrystalline. This work shows that HEA particles can be quickly, safely, and effectively manufactured using liquid-based laser ablation, opening the pathway for mass manufacture and disruptive applications in, e.g., catalysis or tribology.

    DOI： 10.1063/5.0200341

    Web of Science

    Scopus

  7. Effect of Cr content on thermally activated deformation in single-crystal micropillars of Fe-Cr binary alloys Open Access

    Zhu, TQ; Takata, N; Kim, D; Kobashi, M; Yoshino, M; Tsukamura, M

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING   900 巻   2024年5月

    　詳細を見る

    出版者・発行元：Materials Science and Engineering A  

    This study identifies the role of solute Cr in the thermal activation process in the plastic deformation of α-(Fe, Cr) ferrite (BCC solid solutions) using micropillar compression tests for micron-sized single-crystals fabricated on various Fe–Cr binary alloys that were solution-treated at 1573 K. Fe–18%Cr single-crystal micropillars with a mean diameter d of ∼2 μm exhibited a relatively higher strain rate sensitivity (m) of 0.12 for the stress required for slip initiation. Larger Fe–18%Cr micropillars (d = 5 μm) exhibited a lower m value of 0.04. The corresponding activation volume of 50 b<sup>3</sup> was equivalent to the millimeter-sized pure Fe and Fe–18%Cr alloy specimens (60–70 b<sup>3</sup>), indicating the prevalence of a general mechanism involving dislocation motion (kink-pair nucleation of screw dislocations). This mechanism controls the thermal activation process of plastic deformation in the Fe–18%Cr alloy, which has sufficient sources for dislocation multiplication. In the Fe–25%Cr and Fe–40%Cr single crystal micropillars, a less pronounced size-dependent m value (0.01–0.03) was determined, almost independent of specimen size. The corresponding activation volumes of large micropillars (74–77 b<sup>3</sup>) were similar to those of millimeter-sized specimens, which indicates a mild effect of solute Cr atoms on the thermal activation process of dislocation motion in Fe–Cr binary alloys at ambient temperature. Initial dislocations, rather than Cr content in Fe–Cr binary alloys, led to the low changes in size-dependent activation volume of Fe–Cr alloys with higher Cr content. Planar faults (Cr-enriched regions) were observed in Fe–40%Cr alloys, which may become sufficient sources for dislocation nucleation. However, the influence of Cr-enriched regions on dislocation motion remains unclear.

    DOI： 10.1016/j.msea.2024.146499

    Open Access

    Web of Science

    Scopus

  8. In-Situ SEM Observation and DIC Strain Analysis for Deformation and Cracking of Hot-Dip ZnMgAl Alloy Coating

    Takata, N; Yokoi, H; Kim, D; Suzuki, A; Kobashi, M

    CORROSION SCIENCE AND TECHNOLOGY-KOREA   23 巻 ( 2 ) 頁： 113 - 120   2024年4月

    　詳細を見る

    出版者・発行元：Corrosion Science and Technology  

    An attempt was made to apply digital image correlation (DIC) strain analysis to in-situ scanning electron microscopy (SEM) observations of bending deformation to quantify local strain distribution inside a ZnMgAl-alloy coating in deformation. Interstitial-free steel sheets were hot-dipped in a Zn-3Mg-6Al (mass%) alloy melt at 400 <sup>o</sup>C for 2 s. The specimens were deformed using a miniature-sized 4-point bending test machine inside the SEM chamber. The observed in situ SEM images were used for DIC strain analysis. The hot-dip ZnMgAl-alloy coating exhibited a solidification microstructure composed of a three-phase eutectic of fine Al (fcc), Zn (hcp), and Zn<inf>2</inf>Mg phases surrounding the primary solidified Al phases. The relatively coarsened Zn<inf>2</inf>Mg phases were locally observed inside the ZnMgAl-alloy coating. The DIC strain analysis revealed that the strain was localized in the primary solidified Al phases and fine eutectic microstructure around the Zn<inf>2</inf>Mg phase. The results indicated high deformability of the multi-phase microstructure of the ZnMgAl-alloy coating.

    DOI： 10.14773/cst.2024.23.2.113

    Web of Science

    Scopus

  9. Microstructural factors controlling crack resistance of Zn–Al–Mg alloy coatings prepared via hot-dip galvanizing process: Combined approach of in-situ SEM observation with digital image correlation analysis 招待有り 査読有り

    Dasom Kim, Naoki Takata, Hiroki Yokoi, Asuka Suzuki, Makoto Kobashi

    Journal of Materials Research and Technology   29 巻   頁： 1535 - 1541   2024年3月

    　詳細を見る

    記述言語：英語   掲載種別：研究論文（学術雑誌）  

  10. Effect of low-temperature annealing on electric resistivity and mechanical anisotropy of Al-Si binary alloy fabricated by laser-powder bed fusion 招待有り 査読有り

    Yoichiro Konishi, Yuki Hamasaki, Toshihiko Sasaki, Hiroki Adachi, Kazuhiro Ishikawa, Dasom Kim, Naoki Takata, Yoji Miyajima

    Journal of Alloys and Compounds   982 巻   頁： 173737   2024年2月

    　詳細を見る

    記述言語：英語   掲載種別：研究論文（学術雑誌）  

  11. Fabrication of Al-CNT composite with high hardness and electrical conductivity by controlling Al4C3 formation 招待有り 査読有り

    Dasom Kim, Yusuke Hirayama, Zheng Liu, Kenta Takagi, Makoto Kobashi

    Journal of Alloys and Compounds   942 巻   頁： 169102   2023年5月

    　詳細を見る

    担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

  12. Surface cleaning effect of bare aluminum micro-sized powder by low oxygen induction thermal plasma 招待有り 査読有り

    Dasom Kim, Yusuke Hirayama, Kenta Takagi, Hansang Kwon

    Materials   15 巻 ( 4 ) 頁： 1553   2022年2月

    　詳細を見る

    担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

  13. [HTML] (출처: mdpi.com) Full View Interdiffusion and Intermetallic Compounds at Al/Cu Interfaces in Al-50vol.% Cu Composite Prepared by Solid-State Sintering 招待有り 査読有り

    Dasom Kim, Kyungju Kim, Hansang Kwon

    Materials   14 巻 ( 15 ) 頁： 4307   2021年7月

    　詳細を見る

    担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

  14. Highly conductive Al/Al interfaces in ultrafine grained Al compact prepared by low oxygen powder metallurgy technique 招待有り 査読有り

    Dasom Kim, Yusuke Hirayama, Zheng Liu, Hansang Kwon, Makoto Kobashi, Kenta Takagi

    Nanomaterials   11 巻 ( 5 ) 頁： 1182   2021年4月

    　詳細を見る

    担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

  15. Investigation of formation behaviour of Al–Cu intermetallic compounds in Al–50vol% Cu composites prepared by spark plasma sintering under high pressure 招待有り 査読有り

    Dasom Kim, Kyungju Kim, Hansang Kwon

    Materials   14 巻 ( 2 ) 頁： 266   2021年1月

    　詳細を見る

    担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

  16. Aluminum/stainless steel clad materials fabricated via spark plasma sintering 招待有り 査読有り

    Kwangjae Park, Dasom Kim, Kyungju Kim, Hansang Kwon

    Materials   13 巻 ( 1 ) 頁： 239   2020年1月

    　詳細を見る

    記述言語：英語   掲載種別：研究論文（学術雑誌）  

  17. Cold compaction behavior of nano and micro aluminum powder under high pressure 招待有り 査読有り

    Dasom Kim, Kwangjae Park, Kyungju Kim, Seungchan Cho, Yusuke Hirayama, Kenta Takagi, Hansang Kwon

    Composites Research   32 巻 ( 3 ) 頁： 141 - 147   2019年6月

    　詳細を見る

    担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（その他学術会議資料等）  

  18. [HTML] (출처: mdpi.com) Full View Effect of intermetallic compounds on the thermal and mechanical properties of Al–Cu composite materials fabricated by spark plasma sintering 招待有り 査読有り

    Kyungju Kim, Dasom Kim, Kwangjae Park, Myunghoon Cho, Seungchan Cho, Hansang Kwon

    Materials   12 巻 ( 9 ) 頁： 1546   2019年5月

    　詳細を見る

    記述言語：英語   掲載種別：研究論文（学術雑誌）  

  19. Semisolid State Sintering Behavior of Aluminum–Stainless Steel 316L Composite Materials by Powder Metallurgy 招待有り 査読有り

    Kwangjae Park, Dasom Kim, Kyungju Kim, Seungchan Cho, Kenta Takagi, Hansang Kwon

    Materials   12 巻 ( 9 ) 頁： 1473   2019年5月

  20. Fabrication of functionally graded materials using aluminum alloys via hot extrusion 招待有り 査読有り

    Dasom Kim, Kwangjae Park, Minwoo Chang, Sungwook Joo, Sanghwui Hong, Seungchan Cho, Hansang Kwon

    Metals   9 巻 ( 2 ) 頁： 210   2019年2月

    　詳細を見る

    担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

  21. Carbon nanotubes-reinforced aluminum alloy functionally graded materials fabricated by powder extrusion process 招待有り 査読有り

    Dasom Kim, Kwangjae Park, Kyungju Kim, Takamichi Miyazaki, Sungwook Joo, Sanghwui Hong, Hansang Kwon

    Materials Science and Engineering: A   745 巻   頁： 379 - 389   2019年2月

    　詳細を見る

    担当区分：筆頭著者  

  22. Behavior of intermetallic compounds of Al-Ti composite manufactured by spark plasma sintering 招待有り 査読有り

    Kwangjae Park, Dasom Kim, Kyungju Kim, Seungchan Cho, Hansang Kwon

    Materials   12 巻 ( 2 ) 頁： 331   2019年1月

    　詳細を見る

    記述言語：英語   掲載種別：研究論文（学術雑誌）  

  23. Intermetallic Compounds in Al‐SUS316L Composites 招待有り 査読有り 国際誌

    Advanced Engineering Materials   20 巻 ( 10 )   2018年8月

    　詳細を見る

    記述言語：英語   出版者・発行元：Kwangjae Park, Dasom Kim, Jehong Park, Seungchan Cho, Miyazaki Takamichi, Hansang Kwon  

    DOI： https://doi.org/10.1002/adem.201800312

▼全件表示

論文の先頭へ▲

講演・口頭発表等 8

  1. Strain-Rate Dependent Strength of Single-Crystal Micropillars Fabricated on Additive Manufactured Al-Fe Alloy

    日本金属学会 2024年春期大会  2024年3月15日 

    　詳細を見る

    開催年月日： 2024年3月

    記述言語：英語   会議種別：口頭発表（一般）  

    国名：日本国  

  2. In-situ observation combined with DIC strain analysis for understanding deformation and cracking in metal coatings 国際会議

    D. Kim, H. Yokoi, N. Takata, A. Suzuki, M. Kobashi

    The 11th Pacific Rim International Conference on Advanced Materials and Processing (PRICM 11)  2023年11月20日 

    　詳細を見る

    開催年月日： 2023年11月

    記述言語：英語   会議種別：口頭発表（一般）  

    開催地：Jeju, Korea   国名：大韓民国  

  3. In-situ observation and DIC strain analysis for deformation and cracking of hot-dip ZnMgAl alloy coating 招待有り

    N. Takata, H. Yokoi, D. Kim, A. Suzuki, M. Kobashi

    13th International Conference on Zinc & Zinc Alloy Coated Steel Sheet  2023年10月18日 

    　詳細を見る

    開催年月日： 2023年10月

    記述言語：英語   会議種別：口頭発表（招待・特別）  

    開催地：Seoul, Korea   国名：大韓民国  

  4. Effect of Si addition on interfacial reactions of steel sheets with Al-Zn alloy melt in hot-dip galvanizing process for production of galvalume steels

    Y. Omi, D. Kim, N. Takata, A. Suzuki, M. Kobashi

    2023年9月 

    　詳細を見る

    開催年月日： 2023年9月

    記述言語：日本語   会議種別：口頭発表（一般）  

    開催地：Toyama, Japan   国名：日本国  

  5. Analysis of Deformation and Cracking in Zn-Al-Mg Alloy Coating by In-Situ SEM Observation Combined with DIC Strain Analysis

    D. Kim, H. Yokoi, N. Takata, A. Suzuki, M. Kobashi

    2023年9月 

    　詳細を見る

    開催年月日： 2023年9月

    記述言語：英語   会議種別：口頭発表（一般）  

    開催地：Toyama, Japan   国名：日本国  

  6. Enhancement of the hardness for CNT/Al composite by well-dispersed nano sized Al4C3 particles prepared using bare Al nanopowder 国際会議

    D. Kim, Y. Hirayama, Z. Liu, K. Takaigi, H. Kwon, M. Kobashi

    The 18th international conference on Aluminum Alloys  2022年9月 

    　詳細を見る

    開催年月日： 2022年9月

    記述言語：英語   会議種別：口頭発表（一般）  

    開催地：Toyama, Japan   国名：大韓民国  

  7. Impact of Al/Al interface with extremely reduced oxide layer in ultrafine grained Al compact prepared by low oxygen powder metallurgy process

    D. Kim, Y. Hirayama, Z. Liu, K. Takaigi, H. Kwon, M. Kobashi

    Japan Society of Powder and Powder Metallurgy (JSPM)  2022年6月 

    　詳細を見る

    開催年月日： 2021年6月

    記述言語：英語   会議種別：口頭発表（一般）  

    開催地：Online  

  8. Investigation of carbon nanotubes reinforced aluminum functionally graded materials fabricated by hot extrusion process 国際会議

    D. Kim, K. Park, K. Kim, S. Cho, H. Kwon

    The 5th International Conference & Exhibition for Nanotechnology (NANOPIA 2018)  2018年11月 

    　詳細を見る

    開催年月日： 2018年11月

    記述言語：英語   会議種別：口頭発表（一般）  

    開催地：Changwon, Korea   国名：大韓民国  

▼全件表示

講演・口頭発表等の先頭へ▲

科研費 1

  1. 低酸素粉末冶金法による高性能アルミ - カーボンナノチューブ複合材料の開発

    研究課題/研究課題番号：22KJ1590  2023年3月 - 2024年3月

    科学研究費助成事業  特別研究員奨励費

    KIM Dasom

    　 詳細を見る

    担当区分：研究代表者 

    配分額：1400000円 （ 直接経費：1400000円 ）

    Al-CNT have been studied as most promising material that can have high strength and electric conductivity. However, it is difficult to control the interface reaction due to the oxide film of Al. We aim to prepare Al-CNT with high strength and conductivity by using LO-ITP technique.
    Al-carbon nanotube(CNT) composites with high mechanical and electrical properties were fabricated by solving (1) Exquisite interfacial control and (2) uniform dispersion of CNTs in Al matrix using low oxygen powder metallurgy process. By using bare Al nanopowder, first, the agglomeration of CNTs was improved and the dispersibility of CNTs was enhanced within the Al matrix. Second, oxide-less Al/Al and Al/CNT interfaces were prepared. oxide-less Al/Al interfaces contributed to preserving the electrical conductivity of Al. On the other hand, very fine Al4C3 were formed at Al/CNT interfaces with oxide-less layer by heat-treatment at much lower temperature. The uniformly dispersed fine Al4C3 particles enhanced the strength of the Al-CNTs composites without degrade of electrical conductivity of Al.
    翌年度、交付申請を辞退するため、記入しない。
    翌年度、交付申請を辞退するため、記入しない。

科研費の先頭へ▲