論文 - 山本 剛久
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Rapid titanium carbide synthesis from titanium and graphite powders via ultrafast high-temperature sintering 査読有り Open Access
D. Akutagawa, T. Sato, T. Tokunaga, K. Kobayashi, T. Yamamoto
Materials Letters 398 巻 頁: 138890 2025年11月
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Improvement of CMAS corrosion resistance in ytterbium aluminum garnet by multi-phasing of ytterbium oxide 査読有り
N. Yamazaki, K Doi, T. Nakamura, M. Tanaka, S. Kitaoka, T. Yamamoto
Journal of the European Ceramic Society 45 巻 頁: 117474 2025年10月
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Conversion of the (001) strontium titanate surface to titanium monoxide via ultrafast high-temperature sintering 査読有り
I. Keita, S. Toshiki, T. Tomoharu, K. Shunsuke, K. Kiyoshi, T. Yamamoto
Crystal growth and design 25 巻 2025年10月
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Suppression of carbon contamination in tungsten oxide by oxygen-plasma-assisted electron beam-induced deposition 査読有り
S.Kato, A. Tsuji, H. Ogasawara, T. Tokunaga, T. Yamamoto, S. Kobayashi
Journal of Vacuum Science & Technology B 29 巻 頁: 060601 2025年10月
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Surface step motion on the (001) surface of strontium titanate single crystals during DC electric field-assisted flash treatment 招待有り 査読有り Open Access
S. Komori, Y. Katsuyama, T. Tokunaga, T. Yamamoto
Journal of the Ceramic Society of Japan 133 巻 2025年8月
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Three-dimensional morphologies of Cu-Sn intermetallic compounds in lead-free solder particles and their formation mechanisms 査読有り
T. Morikawa, S. Sekine, H. Ikeda, S. Arai, T. Yamamoto
Materials Characterization 228 巻 頁: 115436 2025年7月
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The variation of oxygen and cation vacancies in strontium titanate polycrystals flash-sintered under direct and alternating electric fields 査読有り Open Access
S. Inagaki, T. Tokunaga, K. Kobayashi, T. Yamamoto
Journal of the European Ceramic Society 45 巻 頁: 117611 2025年7月
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Fracture strength recovery in zirconia (8Y-CSZ) polycrystal through crack healing under strong DC electric field 査読有り
K. Morita, S. Takahashi, K. Nambu, D. Terada, T. Tokunaga, T. Yamamoto
Journal of the European Ceramic Society 45 巻 頁: 117406 2025年7月
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Microstructure analysis for zirconium oxynitrides formed in 8 mol% yttria-doped zirconia by a flash event under a direct current electric field in an ambient atmosphere 査読有り
S. Sakamoto, A. Kodaira, T. Tokunaga, N. Morisaki, K. Kobayashi, T. Yamamoto
Journal of the European Ceramic Society 45 巻 ( 7 ) 頁: 117265 2025年7月
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Surface mound formation and growth via step destabilization under a direct current electric field on (001) strontium titanate single crystals 査読有り
Y. Katsuyama, S. Inagaki, T. Tokunaga, T. Yamamoto
Journal of Crystal Growth 667 巻 頁: 128281 2025年6月
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Electron-Beam-Induced Crystallization of Amorphous Gallium OxideThin Films Using Scanning Transmission Electron Microscopy 査読有り
K. Higuchi, T. Tokunaga, T. Sato, T. Yamamoto
25 巻 頁: 3749 - 3755 2025年5月
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Enhancing Near-Infrared Photoluminescence of Ag8GeS6 Quantum Dots Through Compositional Fine-Tuning and ZnS Coating for In Vivo Bioimaging 査読有り Open Access
N. Rismaningsih, J. Kubo, M. Soto, K. Akiyoshi, T. Kameyama, T. Yamamoto, H. Yukawa, Y. Baba, T. Torimoto
Small 21 巻 頁: 2411142 2025年5月
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Healing behavior of microcracks on the surface of yttria-stabilized polycrystals using an ultrafast high-temperature sintering method 査読有り
T. Sato, A. Kodaira, T. Tokunaga, K. Morita, T. Yamamoto
Ceramics International 51 巻 ( 4 ) 頁: 4178 - 4184 2025年2月
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Spectrally Narrow Blue-Light Emission from Nonstoichiometric AgGaS2 Quantum Dots for Application to Light-Emitting Diodes 招待有り 査読有り
M. Tozawa, S. Ofuji, M. Tanaka, K. Akiyoshi, T. Kameyama, T. Yamamoto, G. Motomura, Y. Fujisaki, T. Uematsu, S. Kuwabata, T. Torimoto
ACS Applied Materials and Interfaces 16 巻 頁: 68169 - 68180 2024年11月
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Variation of (001) surface structures of strontium titanate single crystals caused by flash event under direct/alternative current electric fields 査読有り
Y. Katsuyama, S. Kayukawa, T. Tokunaga, S. Kobayashi, S. Hidaka, A. Nakamura, T. Yamamoto
Ceramics International 50 巻 頁: 37366 - 37372 2024年10月
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Microstructural analysis of flash-healed Vickers-indented microcracks near positive/negative electrodes on the (001) surface of cubic zirconia single crystals under direct current electric fields 査読有り
S. Kayukawa, Y. Katsuyama, A. Kodaira, T. Tokunaga, K. Morita, T. Yamamoto
Ceramics International 50 巻 頁: 37348 - 37355 2024年10月
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Highly c-axis-oriented apatite-type lanthanum silicate thin films fabricated by magnetron sputtering under bias 査読有り
S. Hidaka, K. Takagi, T. Yamamoto
Materials Chemistry and Physics 326 巻 頁: 129852 2024年8月
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Variation of surface morphology of material uplift near flash-healed Vickers indents under direct-current electric field in cubic zirconia single crystals 査読有り
S. Kayukawa, Y. Katsuyama, T. Tokunaga, T. Yamamoto
Journal of the Ceramic Society of Japan 132 巻 ( 8 ) 頁: 528 - 531 2024年8月
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Pulsed laser deposition and structural analysis of Ba2Ti6O13 epitaxial thin film on the (210) surface of SrTiO3 single crystal 査読有り
R. Kono, K. Hieda, T. Tokunaga, R. Tamura, R. Masamura, Y. Hikita, K. Kano, T. Yamamoto
Applied Physics Express 17 巻 頁: 075503 2024年7月
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The use of He buffer gas for moderating the plume kinetic energy during Nd:YAG-PLD growth of EuXY2-XO3 phosphor films 査読有り
S. Suzuki, T. Dazai, T. Tokunaga, T. Yamamoto, R. Katoh, M. Lippmaa, R. Takahashi
Journal of Applied Physics 135 巻 頁: 195302 2024年5月