Organization
School of Materials and Chemical Technology Professor
Title
Professor
External link
KIMURA YOSHISATO
Degree
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Doctor of Engineering ( Tokyo Institute of Technology )
Research Areas
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Nanotechnology/Materials / Structural materials and functional materials
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Nanotechnology/Materials / Metallic material properties
Education
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Tokyo Institute of Technology Graduate School, Division of Integrated Science and Engineering
1991.4 - 1994.3
Country： Japan
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Hokkaido University Graduate School, Division of Engineering
1989.4 - 1991.3
Country： Japan
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Ibaraki University Faculty of Engineering
- 1989
Country： Japan
Research History
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Tokyo Institute of Technology Interdisciplinary Graduate School of Science and Engineering Associate Professor
2007.4 - 2018.3
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Tokyo Institute of Technology Interdisciplinary Graduate School of Science and Engineering Associate Professor
2006.8
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科学技術振興事業団 さきがけ研究21研究員兼任
2000.10 - 2003.9
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Tokyo Institute of Technology Interdisciplinary Graduate School of Science and Engineering
1999 - 2006
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Tokyo Institute of Technology Precision and Intelligence Laboratory
1998.4 - 1999.3
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University of Pennsylvania Materials Science and Engineering Visiting Researcher, Post Doc Fellow
1997.2 - 1998.3
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Japan Society for the Promotion of Science Visiting Researcher
1996 - 1997
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Tokyo Institute of Technology School of Engineering
1994.6 - 1998.3
Professional Memberships
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MRS
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日本金属学会
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TMS
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日本熱処理技術協会
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日本鉄鋼協会
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日本熱電学会
Committee Memberships
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公益社団法人日本金属学会 関東支部委員
2025.3 - 2027.2
Committee type：Academic society
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公益社団法人日本金属学会 関東支部長
2025.3 - 2027.2
Committee type：Academic society
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一般社団法人日本熱電学会 理事
2024.7 - 2026.6
Committee type：Academic society
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公益社団法人日本金属学会 理事（職務執行）
2023.3 - 2025.2
Committee type：Academic society
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公益社団法人日本金属学会 調査研究委員会・委員長
2023.3 - 2025.2
Committee type：Academic society
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公益社団法人日本金属学会 関東支部委員
2023.3 - 2025.2
Committee type：Academic society
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公益社団法人日本金属学会 関東支部 副支部長
2023.3 - 2025.2
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一般社団法人日本熱電学会 研究会委員会 委員長
2022.7 - 2024.6
Committee type：Academic society
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一般社団法人日本熱電学会 理事
2022.7 - 2024.6
Committee type：Academic society
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公益社団法人日本金属学会 代議員
2021.3 - 2023.2
Committee type：Academic society
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一般社団法人日本熱電学会 理事
2020.7 - 2022.6
Committee type：Academic society
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一般社団法人日本熱電学会 研究会委員会 委員長
2020.7 - 2022.6
Committee type：Academic society
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一般社団法人日本熱電学会 研究会委員会 委員長
2018.7 - 2020.6
Committee type：Academic society
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一般社団法人日本熱電学会 理事
2018.7 - 2020.6
Committee type：Academic society
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日本金属学会 分科会委員(兼)講演大会委員（幹事）第1分科：エネルギー材料
2017.4 - 2019.3
Committee type：Academic society
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日本金属学会 セミナーシンポジウム委員（第1分科：エネルギー材料）
2017.3 - 2019.2
Committee type：Academic society
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日本熱電学会 評議委員
2016.7 - 2018.6
Committee type：Academic society
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日本金属学会 企業説明会実行委員（第1分科：エネルギー材料）
2015.4 - 2019.3
Committee type：Academic society
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日本金属学会 分科会委員(兼)講演大会委員（幹事）第1分科：エネルギー材料
2015.4 - 2017.3
Committee type：Academic society
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日本熱電学会 評議委員
2014.11 - 2016.10
Committee type：Academic society
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日本金属学会 分科会委員（幹事）第1分科：エネルギー材料
2013.4 - 2015.3
Committee type：Academic society
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日本鉄鋼協会 会報委員会委員
2013.3 - 2017.3
Committee type：Academic society
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日本熱電学会 研究会委員
2012.11 - 2016.10
Committee type：Academic society
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日本金属学会 会誌編集委員会・欧文誌編集委員会編集委員（幹事）
2012.4 - 2014.3
Committee type：Academic society
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日本熱電学会 第９回日本熱電学会講演大会TSJ2012 現地実行委員（東京工業大学）
2011.9 - 2012.8
Committee type：Academic society
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日本金属学会 分科会委員 第1分科：エネルギー材料
2011.4 - 2013.3
Committee type：Academic society
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日本金属学会 会誌編集委員会・欧文誌編集委員会編集委員
2010.4 - 2012.3
Committee type：Academic society
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日本金属学会 会報(まてりあ)編集委員
2009.4 - 2011.3
Committee type：Academic society
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日本金属学会 会誌編集委員会・欧文誌編集委員会編集委員
2008.4 - 2010.3
Committee type：Academic society
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日本金属学会 会報(まてりあ)編集委員
2007.4 - 2009.3
Committee type：Academic society
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日本金属学会 分科会委員 第5分科：社会基盤材料
2007.4 - 2009.3
Committee type：Academic society
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日本熱処理技術協会 編集委員幹事
1999
Committee type：Academic society
Papers
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Interdiffusion of Solute Elements in the α-Fe Phase of the Fe–Cr–Mo and Fe–Cr–Si Ternary Systems Reviewed
Dosung Lee, Mariko Tsuyuguchi, Manabu Watanabe, Yaw Wang Chai, Takako Yamashita, Shin Ishikawa, Yoshisato Kimura
ISIJ International 64 ( 5 ) 826 - 835 2024.3
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Enhanced Thermoelectric Properties of SrSi2 Composite Films with Cubic and Layered Polymorphs Reviewed
Kodai Aoyama, Takao Shimizu, Hideto Kuramochi, Masami Mesuda, Ryo Akiike, Takayoshi Katase, Yoshisato Kimura, Hiroshi Funakubo
ACS Applied Energy Materials 6 ( 12 ) 6593 - 6597 2023.6
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Intermetallic phase precipitation and oxidation behavior of Fe–20Cr–0.5Nb–2Mo (at%) high-Cr ferritic alloy at high temperatures Reviewed
Shintaro Kondo, Yaw Wang Chai, Kentaro Kanai, Lee Dosung, Manabu Watanabe, Shin Ishikawa, Takako Yamashita, Yoshisato Kimura
Acta Materialia 246 118677 - 118677 2023.3
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Effect of Mo addition on laves phase precipitation behavior in Fe-20%Cr-x%Nb alloys Reviewed
Shin Ishikawa, Takako Yamashita, Tomohito Kiryu, Yaw Wang Chai, Yoshisato Kimura
Materials Characterization 190 112077 - 112077 2022.8
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Effect of Half-Heusler Interfacial Structure on Thermal Transport Properties of (Ti, Zr)NiSn Alloys Reviewed
Mizuki Sato, Yaw Wang Chai, Yoshisato Kimura
ACS Applied Materials & Interfaces 13 ( 21 ) 25503 - 25512 2021.5
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Atsuo Katagiri, Mutsuo Uehara, Mao Kurokawa, Kensuke Akiyama, Takao Shimizu, Masaaki Matsushima, Hiroshi Uchida, Yoshisato Kimura, Hiroshi Funakubo
Journal of Electronic Materials 49 ( 12 ) 7509 - 7517 2020.12
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Disconnections and Laves (C14) precipitation in high-Cr ferritic stainless steels Reviewed
Yaw Wang Chai, Ko Kato, Chieri Yabu, Shin Ishikawa, Yoshisato Kimura
Acta Materialia 198 230 - 241 2020.10
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Zhifang Zhou, Yaw Wang Chai, Yu Ikuta, Yonghoon Lee, Yuanhua Lin, Yoshisato Kimura
ACS Applied Materials & Interfaces 12 ( 17 ) 19547 - 19552 2020.4
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Thermoelectric (BaxSr1-x)Si-2 films prepared by sputtering method over the barium solubility limit Reviewed
Kodai Aoyama, Takao Shimizu, Hideto Kuramochi, Masami Mesuda, Ryo Akiike, Keisuke Ide, Takayoshi Katase, Toshio Kamiya, Yoshisato Kimura, Hiroshi Funakubo
Japanese Journal of Applied Physics 59 SFFB02-1 - SFFB02-6 2020.4
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Fabrication and characterization of (CaxSr1-x)Si2 films prepared by co-sputtering method Reviewed
Kodai Aoyama, Takao Shimizu, Hideto Kuramochi, Masami Mesuda, Ryo Akiike, Keisuke Ide, Takayoshi Katase, Toshio Kamiya, Yoshisato Kimura, Hiroshi Funakubo
MRS Advances 5 ( 10 ) 451 - 458 2020.2
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Influence of semiconductor crystallinity on a β-FeSi2 sensitized thermal cell Reviewed
Sachiko Matsushita, Ayumi Tsuruoka, Yoshisato Kimura, Toshihiro Isobe, Akira Nakajima
Solid-State Electronics 158 70 - 74 2019.8
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Evaluation of phase and thermoelectric properties of thin film SrSi2 Reviewed
Kodai AOYAMA, Takao SHIMIZU, Hideto KURAMOCHI, Masami MESUDA, Ryo AKIIKE, Yoshisato KIMURA, Hiroshi FUNAKUBO
Journal of the Ceramic Society of Japan Vol. 127 ( No. 6 ) pp. 394 - 398 2019.6
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Yoshisato Kimura, Masashi Yamada, Yaw Wang Chai
Materials Transactions 60 ( 5 ) 652 - 661 2019.5
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Preparation of CaMgSi and Ca7Mg7.25Si14 single phase films and their thermoelectric properties Reviewed
Matsuo Uehara, Atsuo Katagiri, Mao Kurokawa, Kensuke Akiyama, Takao Shimizu, Masaaki Matsushima, Hiroshi Uchida, Yoshisato Kimura, Hiroshi Funakubo
MRS Advances 4 ( 25-26 ) 1503 - 1508 2019.2
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Yoshisato Kimura, Ko Kato, Yaw Wang Chai
MRS Advances 4 ( 25-26 ) 1477 - 1483 2019.2
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Kurokawa Mao, Shimizu Takao, Uehara Mutsuo, Katagiri Atsuo, Akiyama Kensuke, Matsushima Masaaki, Uchida Hiroshi, Kimura Yoshisato, Funakubo Hiroshi
MRS Advances 3 ( 24 ) 1355 - 1359 2018
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Effects of Two-Phase Microstructure Morphology on Mechanical Properties in Co-Base Heat Resistant Alloys Strengthened by E2(1)-(Co, Ni)(3)AlC Phase Reviewed
Mami Kasakura, Yoshisato Kimura
JOURNAL OF THE JAPAN INSTITUTE OF METALS 81 ( 5 ) 234 - 243 2017.5
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Mao Kurokawa, Mutsuo Uehara, Daichi Ichinose, Takao Shimizu, Kensuke Akiyama, Masaaki Matsushima, Hiroshi Uchida, Yoshisato Kimura, Hiroshi Funakubo
JAPANESE JOURNAL OF APPLIED PHYSICS 56 ( 5 ) 2017.5
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Yoshisato Kimura, Hiroaki Otani, Ayaka Mori, Yaw-Wang Chai
MRS Advances 2 ( 26 ) 1369 - 1374 2017.1
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The effect of an isoelectronic Ti-Zr substitution on Heusler nanoprecipitation and the thermoelectric properties of a (Ti-0.2,Zr-0.8) Ni1.1Sn half-Heusler alloy Reviewed
Yaw Wang Chai, Toshinori Oniki, Takahiro Kenjo, Yoshisato Kimura
Journal of Alloys and Compounds 662 566 - 577 2016.3
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Uehara Mutsuo, Akiyama Kensuke, Shimizu Takao, Matsushima Masaaki, Uchida Hiroshi, Kimura Yoshisato, Funakubo Hiroshi
Journal of Electronic Materials 45 ( 6 ) 3121 - 3126 2016
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Microstructure Control and Mechanical Properties of E21 Co3AlC1-x-based Multi-Phase Heat Resistant Alloys Reviewed
Mami Kasakura, Yoshisato Kimura
Proc. of The 9th Pacific Rim Intl. Conf. on Advanced Materials and Processing (PRICM-9) 2016
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Solid Solution Behavior and Thermoelectric Properties of Half-Heusler (Zr-x, Nb1-x)(Ni-y, Co1-y)Sn Alloy Reviewed
Kentaro Yoshioka, Yaw Wang Chai, Yoshisato Kimura
JOURNAL OF THE JAPAN INSTITUTE OF METALS 79 ( 12 ) 683 - 690 2015.12
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共析Siと酸化鉄の酸化還元反応焼結による-FeSi2基コンポジット熱電材料の創製
木村 好里, 岳野 洸一郎, 森 彩花, Chai Yaw-Wang
日本金属学会誌 79 ( 11 ) 613 - 620 2015.11
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Yoshisato Kimura, Yaw-Wang Chai, Toshinori Oniki, Takahiko Itagaki, Shinya Otani
MRS Proceedings 1760 2015.2
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Microstructure and thermoelectric properties of a ZrNi1.1Sn half-Heusler alloy Reviewed
Yaw Wang Chai, Toshinori Oniki, Yoshisato Kimura
Acta Materialia 85 290 - 300 2015.2
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Ordered Structures and Thermoelectric Properties of MNiSn (M = Ti, Zr, Hf)-Based Half-Heusler Compounds Affected by Close Relationship with Heusler Compounds Reviewed
Yoshisato Kimura, Yaw-Wang Chai
JOM 67 ( 1 ) 233 - 245 2015.1
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Intrinsic point defects in thermoelectric half-Heusler alloys Reviewed
Yaw Wang Chai, Kentaro Yoshioka, Yoshisato Kimura
Scripta Materialia 83 13 - 16 2014.7
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Shota Ogawa, Atsuo Katagiri, Takao Shimizu, Masaaki Matsushima, Kensuke Akiyama, Yoshisato Kimura, Hiroshi Uchida, Hiroshi Funakubo
Journal of Electronic Materials 43 ( 6 ) 2269 - 2273 2014.6
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Microstructure evolution of nanoprecipitates in half-Heusler TiNiSn alloys Reviewed
Yaw Wang Chai, Yoshisato Kimura
Acta Materialia 61 ( 18 ) 6684 - 6697 2013.10
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Yoshisato Kimura, Masato Kawakita, Hiroyasu Yuyama, Yaw-Wang Chai
MRS Proceedings, 2012 MRS Fall Meeting 1516 243 - 248 2013.1
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Nanosized precipitates in half-Heusler TiNiSn alloy Reviewed
Yaw Wang Chai, Yoshisato Kimura
Applied Physics Letters 100 ( 3 ) 2012.1
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Fabrication Process of Half-Heusler Compound TiNiSn Based on the Solid-Liquid Reaction Reviewed
Shinya Otani, Yoshisato Kimura, Yaw-Wang Chai, Yoshinao Mishima
TMS 2011 Annual Meeting, Symp. on Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials X, TMS 428 - 433 2011.3
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Yoshisato Kimura, Toshiyasu Tanoguchi, Yasuhiro Sakai, Yaw-Wang Chai, Yoshinao Mishima
MRS Proceedings, 2010 MRS Fall Meeting 1295 2011
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Vacancy site occupation by Co and Ir in half-Heusler ZrNiSn and conversion of the thermoelectric properties from n-type to p-type Reviewed
Yoshisato Kimura, Toshiyasu Tanoguchi, Takuji Kita
Acta Materialia 58 ( 13 ) 4354 - 4361 2010.8
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Dislocation character and operative slip systems in α-Nb5Si3 tested at 1673K Reviewed
Nobuaki Sekido, Seiji Miura, Yoko Yamabe-Mitarai, Yoshisato Kimura, Yoshinao Mishima
Intermetallics 18 ( 5 ) 841 - 845 2010.5
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Effect of deformation and annealing temperatures on ultrafine microstructure development and yield strength of pearlitic steel through continuous recrystallization Reviewed
Kazuyuki Handa, Yoshisato Kimura, Yuji Yasumoto, Taisuke Kamioka, Yoshinao Mishima
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 527 ( 7-8 ) 1926 - 1932 2010.3
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Surface cracks initiation on carbon steel railway wheels under concurrent load of continuous rolling contact and cyclic frictional heat Reviewed
Kazuyuki Handa, Yoshisato Kimura, Yoshinao Mishima
WEAR 268 ( 1-2 ) 50 - 58 2010.1
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Thermoelectric Performance of Half-Heusler TiNiSn Alloys Fabricated by Solid-Liquid Reaction Sintering Reviewed
Yoshisato Kimura, Chihiro Asami, Yaw-Wang Chai, Yoshinao Mishima
PRICM 7, PTS 1-3 654-656 2795 - +2798 2010
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Phase Stability and Thermoelectric Properties of Half-Heusler Compounds (Ti,M)NiSn (M = Zr, Hf) Reviewed
Takahiro Kenjo, Yoshisato Kimura, Yoshinao Mishima
MRS Proceedings, 2009 MRS Fall Meeting 1218 2010
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Ferrite and Spheroidized Cementite Ultrafine Microstructure Formation in an Fe-0.67 Pct C Steel for Railway Wheels under Simulated Service Conditions Reviewed
Kazuyuki Handa, Yoshisato Kimura, Yoshinao Mishima
Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 40A ( 12 ) 2901 - 2908 2009.12
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Yuji Yasumoto, Kazuyuki Handa, Yoshisato Kimura, Yoshinao Mishima
MRS Proceedings, 2009 MRS Fall Meeting 1225 2009.12
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Tensile behaviour of submicrocrystalline ferritic steel processed by large-strain deformation Reviewed
Andrey Belyakov, Kaneaki Tsuzaki, Yoshisato Kimura, Yoshinao Mishima
Philosophical Magazine Letters 89 ( 3 ) 201 - 212 2009.3
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Yoshisato Kimura, Hazuki Ueno, Yoshinao Mishima
Journal of Electronic Materials 38 ( 7 ) 934 - 939 2009.2
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Diffusion Paths for the Formation of Half-Heusler Type Thermoelectric Compound TiNiSn Reviewed
Chihiro Asami, Yoshisato Kimura, Takuji Kita, Yoshinao Mishima
MRS Proceedings, 2008 MRS Fall Meeting, Advanced Intermetallic-based Alloys for Extreme Environment and Energy Applications 1128 179 - + 2009.2
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Effect of growth rate on microstructure and microstructure evolution of directionally solidified Nb-Si alloys Reviewed
Yoshihito Sekito, Seiji Miura, Kenji Ohkubo, Tetsuo Mohri, Norihito Sakaguchi, Seiichi Watanabe, Yoshisato Kimura, Yoshinao Mishima
MRS Proceedings, 2008 MRS Fall Meeting, Advanced Intermetallic-based Alloys for Extreme Environment and Energy Applications 1128 281 - + 2009.2
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Phase Stability and Thermoelectric Properties of Half-Heusler (M(a), M(b))NiSn (M(a), M(b) = Hf, Zr, Ti) Reviewed
Yoshisato Kimura, Hazuki Ueno, Takahiro Kenjo, Chihiro Asami, Yoshinao Mishima
MRS Proceedings, 2008 MRS Fall Meeting, Advanced Intermetallic-based Alloys for Extreme Environment and Energy Applications 1128 15 - 20 2009.2
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Deformation Behavior of Niobium Silicides during High Temperature Compression Reviewed
Nobuaki Sekido, Seiji Miura, Yoko Yamabe-Mitarai, Yoshisato Kimura, Yoshinao Mishima
MRS Proceedings, 2008 MRS Fall Meeting, Advanced Intermetallic-based Alloys for Extreme Environment and Energy Applications 1128 413 - 418 2009.2
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Ferrite and spheroidized cementite ultra-fine grains formation in Fe-0.67%C railway wheels under contact stress and frictional heat Reviewed
Kazuyuki Handa, Yoshisato Kimura, Yoshinao Mishima
Proceedings of the 17th IFHTSE Congress 1 157 - 160 2009
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Effect of microstructure on the high temperature deformation behavior of Nb-Si alloys Reviewed
Seiji Miura, Yuki Murasato, Yoshihito Sekito, Yukiyoshi Tsutsumi, Kenji Ohkubo, Yoshisato Kimura, Yoshinao Mishima, Tetsuo Mohri
Materials Science and Engineering A 510-511 317 - 321 2009
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Thermo-mechanical Crack Generation and Ultra-fine Grains Formation in Carbon Steel Railway Wheels Under Conditions contact Load and Repeated Heat Input Reviewed
Kazuyuki Handa, Yoshisato Kimura, Yoshinao Mishima
Materials Science and Technology 2008 Conference (MS&T ’08), Iron and Steel: Steel Product Metallurgy and Applications 2001 - 2009 2008.10
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Thermoelectric properties of directionally solidified half-Heusler compound NbCoSn alloys Reviewed
Yoshisato Kimura, Yukio Tamura, Takuji Kita
Applied Physics Letters 92 ( 1 ) 012105-1 - 012105-3 2008.1
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Thermoelectric properties of nearly single-phase half-Heusler NbCoSn alloys and importance of microstructures for improving performance Reviewed
Yoshisato Kimura, Yukio Tamura, Takuji Kita
MRS Proceedings, 2007 MRS Fall Meeting, Thermoelectric Power Generation 1044 305 - + 2008
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Effects of Ru additions on phase equilibria, microstructures and mechanical properties of E2(1) Co3AlC1-x based alloys Reviewed
Yosuke Uotani, Yoshisato Kimura, Yoshinao Mishima
TMS 2008 Annual Meeting Symp. on Structural Aluminides for Elevated Temperature Applications 399 - 405 2008
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Incomplete recrystallization in cold worked steel containing TiC Reviewed
A. Beyakov, F. G. Wei, K. Tsuzaki, Y. Kimura, Y. Mishima
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 471 ( 1-2 ) 50 - 56 2007.12
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Annealing behavior of a ferritic stainless steel subjected to large-strain cold working Reviewed
A. Belyakov, K. Tsuzaki, Y. Kimura, Y. Mishima
Journal of Materials Research 22 ( 11 ) 3042 - 3051 2007.11
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Phase Equilibria and Atomic Diffusion in the Ir/CoAl System Reviewed
Yoshisato Kimura, Mototsugu Ohsaki, Hiroki Fujita, Yoshinao Mishima
Materials Science Forum 561-565 477 - 480 2007.10
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Seiji Miura, Yuki Murasato, Kenji Ohkubo, Yoshisato Kimura, Nobuaki Sekido, Yoshinao Mishima, Tetsuo Mohri
Materials Research Society Symposium Proceedings, 2006 MRS Fall Meeting 980 327 - 332 2007.6
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Thermoelectric properties of half-heusler compounds N-type MNiSn and P-type MPtSn (M = Hf, Zr) Reviewed
Yoshisato Kimura, Tomoya Kuji, Akihisa Zama, Taiki Lee, Yoshinao Mishima
MRS Proceedings, 2006 MRS Fall Meeting, Advanced Intermetallic-based Alloys 980 211 - +216 2007.6
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Comparative study on microstructure evolution upon unidirectional and multidirectional cold working in an Fe-15%Cr ferritic alloy Reviewed
Andrey Belyakov, Kaneaki Tsuzaki, Yuuji Kimura, Yoshisato Kimura, Yoshinao Mishima
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 456 ( 1-2 ) 323 - 331 2007.5
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Microstructure development of unidirectionally solidified (Nb)/Nb3Si eutectic alloys Reviewed
Nobuaki Sekido, Yoshisato Kimura, Seiji Miura, Yoshinao Mishima
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 444 ( 1-2 ) 51 - 57 2007.1
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High temperature thermoelectric properties of TiNiSn-based half-Heusler compounds Reviewed
Sung Wng Kim, Yoshisato Kimura, Yoshinao Mishima
Intermetallics 15 ( 3 ) 349 - 356 2007
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Recovery in 15%Cr ferritic stainless steel after large strain deformation Reviewed
Andrey Belyakov, Kaneaki Tsuzaki, Yoshisato Kimura, Yoshinao Mishima
Third International Conference on Recrystallization and Grain Growth, Part 1, ReX and GG III 558-559 119 - + 2007
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Thermoelectric Properties of P-type Half-Heusler Compounds HfPtSn and ZrPtSn Reviewed
Yoshisato Kimura, Akihisa Zama, Yoshinao Mishima
The 25th International Conference on Thermoelectric (ICT 2006), IEEE 115 - 119 2006.12
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Fracture toughness and high temperature strength of unidirectionally solidified Nb-Si binary and Nb-Ti-Si ternary alloys Reviewed
Nobuaki Sekido, Yoshisato Kimura, Seiji Miura, Fu-Gao Wei, Yoshinao Mishima
Journal of Alloys and Compounds 425 ( 1-2 ) 223 - 229 2006.11
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Thermoelectric properties of p-type half-Heusler compound HfPtSn and improvement for high-performance by Ir and Co additions Reviewed
Yoshisato Kimura, Akihisa Zama
Applied Physics Letters 89 ( 17 ) 172110-1 - 172110-3 2006.10
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Extra ordering of carbon atoms and mechanical properties of E2(1) Co3AlC based heat resistant alloys Reviewed
Yoshisato Kimura, Kiichi Sakai, Fu-Gao Wei, Yoshinao Mishima
Intermetallics 14 ( 10-11 ) 1262 - 1269 2006.10
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Microstructure and mechanical properties of MoSi2/TaSi2 two-phase alloys Reviewed
Yoshisato Kimura, Masaharu Komiyama, Yoshinao Mishima
Intermetallics 14 ( 10-11 ) 1358 - 1363 2006.10
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Effect of matrix microstructure on precipitation of Laves phase in Fe-10Cr-1.4W(-Co) alloys Reviewed
Keisuke Yamamoto, Hiroshi Usuba, Yoshisato Kimura, Yoshinao Mishima
Intermetallics 14 ( 5 ) 515 - 520 2006.5
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Phase equilibria and microstructures in the Fe-Si-Cr-Ti system Reviewed
H Usuba, K Yamamoto, Y Kimura, Y Mishima
Intermetallics 14 ( 5 ) 505 - 507 2006.5
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Phase equilibria in the T-Al-C (T : Co, Ni, Rh, Ir) and T-Al-B (T : Rh, Ir) systems for the design of E2(1)-Co3AlC based heat resistant alloys Reviewed
Y Kimura, K Iida, FG Wei, Y Mishima
Intermetallics 14 ( 5 ) 508 - 514 2006.5
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Revolutionary microstructure control with phase diagram evaluation for the design of E2(1) Co(3)AIC-based heat-resistant alloys Reviewed
Y Kimura, K Sakai, Y Mishima
Journal of Phase Equilibria and Diffusion 27 ( 1 ) 14 - 21 2006.2
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Orientation relationship between Nb and Nb5Si3 (D8(1)) phases in the eutectoid lamellar microstructure Reviewed
N Sekido, FG Wei, Y Kimura, S Miura, Y Mishima
Philosophical Magazine Letters 86 ( 2 ) 89 - 98 2006.2
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Microstructural Control of Nb-Si Alloy with Invariant Reactions Reviewed
Seiji Miura, J.-H. Kim, Kenji Ohkubo Yoshisato Kimura Nobuaki Sekido Yoshinao, Mishima Tetsuo Mohri
Materials Science Forum 539-543 1507 - 1512 2006
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Optimization of high temperature thermoelectric properties of TiNiSn-based Half-Hesuler compounds Reviewed
Sung Wng Kim, Yoshisato Kimura, Yoshinao Mishima, Sung Kil Hong, Dap Chun Choi
Journal of Korean Institute Metals & Materials 44 511 - 517 2006
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Effects of heat treatment on thermoelectric properties of TiNiSn Half-Hesuler compound Reviewed
Sung Wng Kim, Yoshisato Kimura, Yoshinao Mishima, Sung Kil Hong, Dap Chun Choi
Journal of Korean Institute Metals & Materials 44 503 - 510 2006
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High-performance of Half-Heusler MNiSn (M=Hf,Zr) single-phase thermoelectric alloys fabricated using optical floating zone melting Reviewed
Yoshisato Kimura, Tomoya Kuji, Akihisa Zama, Yasufumi Shibata, Yoshinao Mishima
MRS Proceedings, 2005 MRS Fall Meeting, Materials and Technologies for Direct Thermal-to-Electric Energy Conversion 886 331 - +336 2006
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Formation of Fe/-(Fe, Mn)3AlC Lamellar Microstructures and Improvement of Ambient Temperature Ductility Reviewed
Yoshisato Kimura, Yoshinao Mishima
The 3rd Asian Conference on Heat Treatment of Materials 385 - 387 2005.11
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Phase equilibria in Ir-rich portion of Ir-AI-X (X : V, Nb and Ta) ternary systems Reviewed
S Miura, K Ohkubo, Y Terada, Y Kimura, Y Mishima, Y Yamabe-Mitarai, H Harada, T Mohri
Journal of Alloys and Compounds 395 ( 1-2 ) 263 - 271 2005.5
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Phase equilibria in the Ir-rich portion of the Ir-Al-X (X : Ti, Zr and Hf) ternary systems Reviewed
S Miura, K Ohkubo, Y Terada, Y Kimura, Y Mishima, Y Yamabe-Mitarai, H Harada, T Mohri
Journal of Alloys and Compounds 393 ( 1-2 ) 239 - 247 2005.5
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Processing, microstructure, and mechanical properties of (Nb)/Nb5Si3 two-phase alloys Reviewed
Yoshisato Kimura, Hiroaki Yamaoka, Nobuaki Sekido, Yoshinao Mishima
Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 36A ( 3 ) 483 - 488 2005.3
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Yoshisato Kimura, Tatsuya Shimizu, Yoshinao Mishima, Sachiyori Shina
Metallurgical and Materials Transactions A 36A ( 3 ) 591 - 599 2005.3
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Microstructure control of Co3AlC-base heat resistant alloys using optical floating zone melting Reviewed
Yoshisato Kimura, Kiichi Sakai, Shinya Teramoto, Yoshinao Mishima
PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing, PTS 1-5 475-479 833 - 836 2005
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Precipitation behavior and phase stability of intermetallic phases in Fe-Cr-W-Co ferritic alloys Reviewed
Keisuke Yamamoto, Yoshisato Kimura, Yoshinao Mishima
PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing, PTS 1-5 475-479 845 - 848 2005
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Yoshisato Kimura, Fu-Gao Wei, Hideyuki Ohtsuka, Yoshinao Mishima
MRS Proceedings, 2004 MRS Fall Meeting, Integrative and Interdisciplinary Aspects of Intermetallics 842 395 - 400 2004.12
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Solidification process and mechanical behavior of the Nb/Nb5Si3 two phase alloys in the Nb-Ti-Si system Reviewed
Nobuaki Sekido, Yoshisato Kimura, Seiji Miura, Yoshinao Mishima
Materials Transactions 45 ( 12 ) 3264 - 3271 2004.12
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Effect of partial La filling on high-temperature thermoelectric properties of IrSb3-based skutterudite compounds Reviewed
Sung Wng Kim, Yoshisato Kimura, Yoshinao Mishima
Journal of Electronic Materials 33 ( 10 ) 1156 - 1160 2004.10
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Precipitation of icosahedral quasicrystalline phase, R-phase and laves phase in ferritic alloys Reviewed
Keisuke Yamamoto, Yoshisato Kimura, Yoshinao Mishima
Transactions of Materials and Heat Treatment 25 ( 5 ) 229 - 233 2004.10
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Orientation relationships of icosahedral quasicrystalline phase and laves phase precipitates in a ferritic alloy Reviewed
Keisuke Yamamoto, Yoshisato Kimura, Yoshinao Mishima
Materials Transactions 45 ( 8 ) 2598 - 2601 2004.8
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Enhancement of high temperature thermoelectric properties of intermetallic compounds based on a Skutterudite IrSb3 and a half-Heusler TiNiSb Reviewed
Sung Wng. Kim, Yoshisato Kimura, Yoshinao Mishima
Science and Technology of Advanced Materials 5 ( 4 ) 485 - 489 2004.7
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Microstructure control and ductility improvement of the two-phase gamma-Fe/kappa-(Fe, Mn)(3)AlC alloys in the Fe-Mn-Al-C quaternary system Reviewed
Yoshisato Kimura, Kazuyuki Handa, Kunio Hayashi, Yoshinao Mishima
Intermetallics 12 ( 6 ) 607 - 617 2004.6
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Phase constitution and microstructure of the Fe-Si-Cr ternary ferritic alloys Reviewed
Keisuke Yamamoto, Yoshisato Kimura, Yoshinao Mishima
Scripta Materialia 50 ( 7 ) 977 - 981 2004.4
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Precipitation of the icosahedral quasicrystalline phase, R-phase and Laves phase in ferritic alloys Reviewed
Keisuke Yamamoto, Yoshisato Kimura, Yoshinao Mishima
Materials Transactions 45 ( 2 ) 357 - 360 2004.2
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Thrmoelectric properties of several P- and N-type half-Heusler compounds and effects of dopants Reviewed
Yumi Hayashi, Sung Wng Kim, Yoshisato Kimura, Yoshinao Mishima
TMS 2004 Annual Meeting Symp. on Advanced Materials for Energy Conversion II 367 - 374 2004
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Microstructure and Mechanical Properties of Be_12_Ti/(Be) and Be_12_V/(Be) Two-phase Alloys Reviewed
Yoshinao Mishima, Keisuke Yamamoto, Yoshisato Kimura, M. Nori, Uchida Hiroshi Kawamura
Proc. of the 6th IEA Intnl. Workshop on Beryllium Technology for Fusion 184 - 189 2004
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The Enhancement of High Temperature Thermoelectric Properties of TiNiSn Based Half-Heusler Compounds Reviewed
Sung-Wng Kim, Yoshisato Kimura, Yoshinao Mishima
TMS 2004 Annual Meeting Symp. on Advanced Materials for Energy Conversion II 377 - 384 2004
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Phase Stability and Magnetic Properties of E21-(Co, Ni)3AlC Based Alloys Reviewed
Yoshisato Kimura, Kaoru Iida, Yoshinao Mishima
MRS Proceedings, 2002 MRS Fall Meeting, Defect Properties and Related Phenomena in Intermetallic Alloys 753 433 - 438 2003.7
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Effect of growth rate on microstructure and mechanical properties of the directionally solidified Nb-Si eutectic alloy Reviewed
Nobuaki Sekido, Yoshisato Kimura, Yoshinao Mishima
MRS Proceedings, 2002 MRS Fall Meeting, Defect Properties and Related Phenomena in Intermetallic Alloys 753 327 - 332 2003.7
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Effects of doping on the high-temperature thermoelectric properties of IrSb3 skutterudite compounds Reviewed
Sung Wng Kim, Yoshisato Kimura, Yoshinao Mishima
Journal of Electronic Materials 32 ( 11 ) 1141 - 1147 2003
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Effect of matrix substructures on precipitation of the laves phase in Fe-Cr-Nb-Ni system Reviewed
Keisuke Yamamoto, Yoshisato Kimura, Yoshinao Mishima
ISIJ International 43 ( 8 ) 1253 - 1259 2003
-
Microstructures and phase equilibria of the transition metal corner in the Rh-Al-C and Ir-Al-C ternary systems Reviewed
Yoshisato Kimura, Kaoru Iida, Yoshinao Mishima
Intermetallics 10 ( 10 ) 933 - 944 2002.10
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Deformation twinning in a HtV(2)(+) Nb-based laves phase alloy Reviewed
Yoshisato Kimura, David E. Luzzi, David P. Pope
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 329 241 - 248 2002.6
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Microstructural control for strengthening the gamma-Fe/E2(1)-(Fe, Mn)(3)AlCx alloys Reviewed
Y Kimura, K Hayashi, K Handa, Y Mishima
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 329 680 - 685 2002.6
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Design of Laves phase strengthened ferritic heat resisting steels in the Fe-Cr-Nb(-Ni) system Reviewed
K Yamamoto, Y Kimura, FG Wei, Y Mishima
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 329 249 - 254 2002.6
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Thermoelectric properties of IrSb3 and related ternary skutterudite system Reviewed
Sung Wng Kim, Yoshisato Kimura, Yoshinao Mishima
TMS 2002 Annual Meeting Symp. om Fundamentals of Advanced Materials for Energy Conversion 25 - 32 2002
-
Microstructure control and tensile properties of three-phase alloys based on the E2(1) Co3AlC and B2CoAl Reviewed
Yoshisato Kimura, Yoshinao Mishima, CT Liu
Intermetallics 9 ( 12 ) 1069 - 1078 2001.12
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Alloy design of Nb5Si3 composite with a fine lamellar structure for ultra-high temperature application Reviewed
N Sekido, FG Wei, Y Kimura, S Miura, Y Mishima
3rd International Symposium on Structural Intermetallics (ISSI 2001) 795 - 800 2001.9
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Characterization of C11(b)/C40 lamellae in a MoSi2-15mol%TaSi2 alloy Reviewed
Fu-Gao Wei, Yoshisato Kimura, Yoshinao Mishima
Intermetallics 9 ( 8 ) 661 - 670 2001.8
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Microstructure and phase stability in MOSi2-TSi2 (T=Cr, V, Nb, Ta, Ti) pseudo-binary systems Reviewed
Fu-Gao Wei, Yoshisato Kimura, Yoshinao Mishima
Materials Transactions 42 ( 7 ) 1349 - 1355 2001.7
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C11b/C40 Lamellar Structure in a Ta-added Molybdenum Disilicide Reviewed
Fu-Gao Wei, Yoshisato Kimura, Yoshinao Mishima
MRS Proceedings, 2000 MRS Fall Meeting, High-Temperature Ordered Intermetallic Alloys IX 646 N5.37.1 - N5.37.6 2001.4
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The -FeSi_2_ Formation and Thermoelectric Power of the FeSi_2_+Co Base Alloys Reviewed
Yoshisato Kimura Kentaro Shindo, Yoshinao Mishima
MRS Proceedings, 2000 MRS Fall Meeting, High-Temperature Ordered Intermetallic Alloys IX 646 N5.38.1 - N5.38.6 2001.4
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Microstructures and Thermoelectric Power of the Higher Manganese Silicide Alloys
Kimiko Kakubo, Yoshisato Kimura, Yoshinao Mishima
MRS Proceedings, 2000 MRS Fall Meeting, High-Temperature Ordered Intermetallic Alloys IX 646 N2.9.1 - N2.9.6 2001.4
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Microstructures and Mechanical Properties of the Two-Phase Fe-Mn-Al-C(-Cr) Alloys Reviewed
Kazuyuki Handa, Yoshisato Kimura, Yoshinao Mishima
MRS Proceedings, 2000 MRS Fall Meeting, High-Temperature Ordered Intermetallic Alloys IX 646 N5.21.1 - N5.21.6 2001.4
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Control of Microstructure by Heat Treatment to Overcome the Trade-off Balancing in the Niobium Siliside Based MMC as Ultra-High Temperature Smart Materials Reviewed
Nobuaki Sekido, Fu-Gao Wei, Yoshisato Kimura, Seiji Miura, Yoshinao Mishima
Proc. of Symp., Trans. Mater. Res. Soc. Jpn. 26 145 - 148 2001
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Effect of lamellar spacing on the mechanical properties of (Nb)/(Nb, Ti)5Si3 two-phase alloys Reviewed
Nobuaki Sekido, Yoshisato Kimura, Fu-Gao Wei, Seiji Miura, Yoshinao Mishima
Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals 64 ( 11 ) 1056 - 1061 2000.11
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Compressive mechanical properties of multi-phase alloys based on B2CoAl and E2(1) Co3AlC Reviewed
Yoshisato Kimura, Masaru Takahashi, Hideki Hosoda, Seiji Miura, Yoshinao Mishima
Intermetallics 8 ( 7 ) 749 - 757 2000.7
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Heat Treatment Conditions for the Transformation of Semiconductor Phase FeSi_2_ from Metallic Phase FeSi_2_ Reviewed
Yoshisato Kimura Kentaro, Shindo Yoriko Ohta, Yoshinao Mishima
Proc. of the 12th International Federation of Heat Treatment and Surface Engineering Congress 2 169 - 176 2000
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Deformation of Two-Phase Alloys Based on C15 Laves Phase HfV_2_ + Nb Reviewed
Yoshisato Kimura, David E. Luzzi David, P. Pope
MRS Proceedings, 1998 MRS Fall Meeting, High-Temperature Ordered Intermetallic Alloys VIII 552 KK7.5.1 - KK7.5.6 1999
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Effects of Nb on the Deformation of HfV_2_-Based Alloys Reviewed
Yoshisato Kimura, David E. Luzzi David, P. Pope
Proc. of TMS Symp on Interstitial and Substitutional Effects in Intermetallics 295 - 309 1998
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Ductility and toughness in intermetallics Reviewed
Yoshisato Kimura, David P. Pope
Intermetallics 6 ( 7-8 ) 567 - 571 1998
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Mechanical Properties of Co-Base Alloys Strengthened by E2_1_ Type Intermetallic Compound Co_3_AlC Reviewed
K-Y. Hwang, Yoshisato Kimura, Seiji Miura, Yoshinao Mishima
Proc. the 3rd Pacific Rim International Conference of Materials, PRICM-3, TMS 2355 - 2360 1998
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Ductility and Toughness Considerations in Intermetallics Reviewed
Yoshisato Kimura, David P. Pope
Proc. of Intl. Symp. on Structural Intermetallics, Structural Intermetallics 1997, TMS 99 - 106 1997
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Improvement in room temperature ductility of intermetallic alloys through microstructural control Reviewed
Yoshinao Mishima, Masaharu Kato, Yoshisato Kimura, Hideki Hosoda, Seiji Miura
Intermetallics 4 ( Suppl 1 ) S171 - S179 1996
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Phase Stabilities and Relations of Multi-Phase Alloys Based on B2 CoAl and E21 Co3AlC Reviewed
Yoshisato Kimura, Masaru Takahashi, Seiji Miura, Tomoo Suzuki, Yoshinao Mishima
Intermetallics 3 ( 5 ) 413 - 425 1995.5
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Microstructural Control for Ductilization of Multi-Phase Alloys Based on B2 CoAl Reviewed
Yoshinao Mishima, Seiji Miura, Yoshisato Kimura
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing 192 ( Pt 2 ) 748 - 755 1995.2
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Microstructure and Mechanical Properties of the L1_2_/L2_1_Two-phase Alloys in the Quaternary Co-Al-Ni-Ti System Reviewed
Takeo Matano, Yoshisato Kimura, Seiji Miura, Yoshinao Mishima
MRS Symp. Proc. 1994 MRS Fall Meeting, High-Temperature Ordered Intermetallic Alloys VI 364 1377 - 1382 1995
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Phase stability and mechanical properties of multi-phase alloys based on the B2 CoAl and the E21 Co3AlC Reviewed
Yoshisato Kimura, Masaru Takahashi, Seiji Miura, Yoshinao Mishima
MRS Symp. Proc. 1994 MRS Fall Meeting, High-Temperature Ordered Intermetallic Alloys VI 364 ( 2 ) 1371 - 1376 1995
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Microstructure and Mechanical Properties of Two-Phase Alloys Based on the B2 Type Intermetallic Compound CoAl in the Co-Al-Ni Ternary System Reviewed
Yoshisato Kimura, Seiji Miura, Tomoo Suzuki, Yoshinao Mishima
Materials Transactions JIM 35 ( 11 ) 800 - 807 1994.11
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Microstructure Control in Binary Co-Al Alloys Based on B2 Intermetallic Compound CoAl Reviewed
Yoshisato Kimura, Haruyoshi Kuriyama, Seiji Miura, Tomoo Suzuki, Yoshinao Mishima
Materials Transactions JIM 35 ( 3 ) 182 - 188 1994.3
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Mechanical Properties of Multi-Phase Alloys Based on B2 Intermetallic Compounds in The Co-Al-Ni System Reviewed
Yoshisato Kimura, Seiji Miura, Tomoo Suzuki, Yoshinao Mishima
SAMPE JPN. Symp. Proc. Intermetallic Compounds for High-Temperature Structural Applications 1421 - 1426 1993.10
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hase Relations in The Co-Al-Ni Ternary System for The Development of Multi-Phase Alloys Based on B2 Intermetallic Compound Reviewed
Yoshisato Kimura, Seiji Miura, Tomoo Suzuki, Yoshinao Mishima
TMS/ASM Symp. Proc. Experimental Methods of Phase Diagram Determination 113 - 121 1993.10
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Microstructure and Mechanical Properties of B2 (Co,Ni)Al Based Allots Reviewed
Yoshisato Kimura, Tomoo Suzuki, Yoshinao Mishima
MRS Proceedings, 1992 MRS Fall Meeting, High-Temperature Ordered Intermetallic Alloys V 288 697 - 702 1993.3
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Computer Simulation of a Stress-Strain Curve with a Serrated Flow
Kimura Yoshisato, Mohri Tetsuo
Bulletin of the Faculty of Engineering,Hokkaido University ( 155 ) 9 - 17 1991
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EFFECTS OF APPLIED STRESS AND PLASTIC STRAIN ON GAMMA-REVERSIBLE-EPSILON MARTENSITIC-TRANSFORMATION IN HIGH MN ALLOY POLYCRYSTALS Reviewed
Yo Tomota, Min Piao, Takashi Hasunuma, Yoshisato Kimura
J. JPN. Inst. Metals 54 ( 6 ) 628 - 634 1990.6
Books
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Enhancement of Thermoelectric Figure of Merit through Nanostructural Control on Intermetallic Semiconductors toward High Temperature Applications
Elsevier 2006
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Enhancement of Thermoelectric Figure of Merit through Nanostructural Control on Intermetallic Semiconductors toward High Temperature Applications
Elsevier 2006
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Enhancement of thermoelectric figure of merit through nanostructural control on intermetallic semiconductors toward high-temperature applications Reviewed
Yoshinao Mishima, Yoshisato Kimura, Sung Wng Kim
Elsevier Ltd 2006
MISC
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:Overview Based on Complied Statistics
Mishima Yoshinao, Inui Haruyuki, Takeyama Masao, Takanashi Kouki, Nakatani Ryoichi, Miura Seiji, Yoshimi Kyousuke, Hosoda Hideki, Nakano Takayoshi, Kimura Yoshisato, Yasuda Hiroyuki, Hata Satoshi
Bulletin of the Japan Institute of Metals 46 ( 4 ) 278 - 283 2007
Presentations
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Properties Control by Solid Solution Substitution for Vacancy-site in Half-Heusler ZrNiSn-based Thermoelectric Materials
Yoshisato Kimura, Yu An Chen, Yusuke Tsubono, Yaw Wang Chai
2024 MRS Fall Meeting & Exhibit 2024.12
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Characterization of Composition Gradient Layered Microstructure Formed in Mg2(Si, Sn)-based Thermoelectric Alloys Invited
Yoshisato Kimura, Hiromasa Ichise, Feifan Zhang, Yaw Wang Chai, Manabu Watanabe, Yonghoon Lee
TMS 2024 Annual Meeting (153rd) 2024.3
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ハーフホイスラー規則構造における固溶体形成と相分離
木村 好里
室温近傍での使用を目指す鉄基ハーフホイスラー合金に関する研究会 2023.10
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Effects of Ru Additions on Phase Equilibria, Microstructures and Mechanical Properties of E21 Co3AlC1-x Based Alloys
TMS, Warrendale, PA, USA 2008
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Thermoelectric Properties of Nearly Single-Phase Half-Heusler NbCoSn Alloys and Importance of Microstructures for ImprovingPerformance
2007 MRS Fall Meeting 2008
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Diffusion Paths for the Formation of Half-Heusler Type Thermoelectric Compound TiNiSn
Boston, MA, USA 2009
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Ferrite and Spheroidized Cementite Ultra-Fine Grains Formation in Fe-0.67%C Railway Wheels Under Contact Stress and Frictional Heat
Proc. of The 17th Intnl. Federation for Heat Treatment and Surface Eng. (IFHTSE) Congress 2008 2009
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Effects of Ru Additions on Phase Equilibria, Microstructures and Mechanical Properties of E21 Co3AlC1-x Based Alloys
TMS, Warrendale, PA, USA 2008
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Thermoelectric Properties of Nearly Single-Phase Half-Heusler NbCoSn Alloys and Importance of Microstructures for ImprovingPerformance
2007 MRS Fall Meeting 2008
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Diffusion Paths for the Formation of Half-Heusler Type Thermoelectric Compound TiNiSn
Boston, MA, USA 2009
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Ferrite and Spheroidized Cementite Ultra-Fine Grains Formation in Fe-0.67%C Railway Wheels Under Contact Stress and Frictional Heat
Proc. of The 17th Intnl. Federation for Heat Treatment and Surface Eng. (IFHTSE) Congress 2008 2009
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The effects of aging on the microstructure of Ti-Au-Co shape mempry alloys
2009
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Phase Stability and Thermoelectric Properties of Half-Heusler (Ma, Mb)NiSn (Ma, Mb = Hf, Zr, Ti)
2008 MRS Fall Meeting 2009
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Thermo-mechanical Crack Generation and Ultra-fine Grains Formation in Carbon Steel Railway Wheels Under Conditions contact Load and Repeated Heat Input
Materials Science and Technology 2008 Conference (MS&T ’08), Iron and Steel: Steel Product Metallurgy and Applications 2010
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The effects of aging on the microstructure of Ti-Au-Co shape mempry alloys
2009
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Phase Stability and Thermoelectric Properties of Half-Heusler (Ma, Mb)NiSn (Ma, Mb = Hf, Zr, Ti)
2008 MRS Fall Meeting 2009
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Thermo-mechanical Crack Generation and Ultra-fine Grains Formation in Carbon Steel Railway Wheels Under Conditions contact Load and Repeated Heat Input
Materials Science and Technology 2008 Conference (MS&T ’08), Iron and Steel: Steel Product Metallurgy and Applications 2010
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光学式浮遊帯熔融法とホットプレスによるHalf-Heusler合金の作製と熱電特性
日本金属学会秋期(第139回)大会 2006
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IrにおけるHfとZrの拡散挙動および相互拡散係数
日本金属学会秋期(第139回)大会 2006
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Magnetic Properties of E21-base Co3AlC and the Correlation with the Ordering of Carbon Atoms and Vacancies
2005
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Formation of gamma-Fe/kappa-(Fe, Mn)3AlC Lamellar Microstructures and Improvement of Ambient Temperature Ductility
2005
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Half-Heusler型金属間化合物合金の熱電特性と材料設計
日本金属学会春期(第138回)大会 2006
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E21-Co3AlCにおけるC原子の規則化－磁気特性および機械的性質に及ぼす影響－
日本鉄鋼協会2006年春季大会「強磁場を利用した鉄鋼材料の組織制御」研究会シンポジウム 2006
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Ir-Co-AlおよびIr-Ri-Al三元系における相平衡と拡散挙動
日本金属学会秋期(第139回)大会 2006
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Half-Heusler型NbMSn (M=Co, Ir)の光学式浮遊帯域溶融法による組織改善と熱電特性
日本金属学会秋期(第139回)大会 2006
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High-Performance of Half-Heusler MNiSn (M=Hf,Zr) Single-Phase Thermoelectric Alloys Fabricated using Optical Floating Zone Melting
MRS Symp. Proc., Materials and Technologies for Direct Thermal-to-Electric Energy Conversion, Materials Resarch Society 2006
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Thermoelectric Properties of P-type Half-Heusler Compounds HfPtSn and ZrPtSn
The 25th International Conference on Thermoelectric (ICT 2006) 2006
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Thermoelectric Properties of P-type Half-Heusler Compounds HfPtSn and ZrPtSn
The 25th International Conference on Thermoelectric (ICT 2006) 2006
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Thermoelectric Properties of Half-Heusler Compounds N-type MNiSn and P-type MPtSn (M = Hf, Zr)
2006 MRS Fall Meeting 2007
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Recovery in 15%Cr ferritic stainless steel after large strain deformation
The 3rd International Conference on Recrystallization and Grain Growth 2007
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Phase Equilibria and Atomic Diffusion in the Ir/CoAl System
The 6th Pacific Rim Intl. Conf. on Advanced Materials and Processing, PRICM-6 2007
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High-Performance of Half-Heusler MNiSn (M=Hf,Zr) Single-Phase Thermoelectric Alloys Fabricated using Optical Floating Zone Melting
MRS Symp. Proc., Materials and Technologies for Direct Thermal-to-Electric Energy Conversion, Materials Resarch Society 2006
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Thermoelectric Properties of Half-Heusler Compounds N-type MNiSn and P-type MPtSn (M = Hf, Zr)
2006 MRS Fall Meeting 2007
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Recovery in 15%Cr ferritic stainless steel after large strain deformation
The 3rd International Conference on Recrystallization and Grain Growth 2007
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Phase Equilibria and Atomic Diffusion in the Ir/CoAl System
The 6th Pacific Rim Intl. Conf. on Advanced Materials and Processing, PRICM-6 2007
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Microstructure Control of Nb-Si Alloy Doped with Zr and Mg Through Eutectic and Eutectoid Reactions and its Deformation Behavior
2006 MRS Fall Meeting 2007
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Microstructure Control of Nb-Si Alloy Doped with Zr and Mg Through Eutectic and Eutectoid Reactions and its Deformation Behavior
2006 MRS Fall Meeting 2007
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The Relationship Between Phase Stability and Thermoelectric Properties of TiNiSn Half-Heusler
J. Electronic Mater. 2003
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Effects of Doping on the High-Temperature Thermoelectric Properties of IrSb3 Skutterudite Compounds
J. Electronic Mater. 2003
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The Relationship Between Phase Stability and Thermoelectric Properties of TiNiSn Half-Heusler
J. Electronic Mater. 2003
-
Effects of Doping on the High-Temperature Thermoelectric Properties of IrSb3 Skutterudite Compounds
J. Electronic Mater. 2003
-
Phase Stability and Magnetic Properties of E2_1_-(Co,Ni)_3_AlC Based Alloys
2002 MRS Fall Meeting 2003
-
Precipitation of Icosahedral Quasicrystalline Phase, R-Phase and Laves Phase in Ferritic Alloys
Transactions of Materials and Heat Treatment 2004
-
Effect of Partial La Filling on High Temperature Thermoelectric Properties of IrSb3 Based Skutterudite Compounds
J. Electronic Materials 2004
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Precipitation of Icosahedral Quasicrystalline Phase, R-Phase and Laves Phase in Ferritic Alloys
Transactions of Materials and Heat Treatment 2004
-
Phase Stability and Magnetic Properties of E2_1_-(Co,Ni)_3_AlC Based Alloys
2002 MRS Fall Meeting 2003
-
Magnetic Properties of E21-base Co3AlC and the Correlation with the Ordering of Carbon Atoms and Vacancies
2005
-
Formation of gamma-Fe/kappa-(Fe, Mn)3AlC Lamellar Microstructures and Improvement of Ambient Temperature Ductility
2005
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Effect of Partial La Filling on High Temperature Thermoelectric Properties of IrSb3 Based Skutterudite Compounds
J. Electronic Materials 2004
Awards
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日本金属学会功績賞［工業材料部門］（第67回）
2009.3 The Japan Institute of Metals and Materials
Research Projects
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Technology assessment and model analysis by integrating energy science, data science and economics
Grant number：24H00441 2024.4 - 2029.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)
Grant amount：\39000000 （ Direct Cost: \30000000 、 Indirect Cost：\9000000 ）
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Multiscale microstructure engineering and the development of high performance, environmental friendly, low cost and thermally stable half-Heusler thermoelectric materials
Grant number：18K04744 2018.4 - 2022.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
CHAI Yaw Wang
Grant amount：\4290000 （ Direct Cost: \3300000 、 Indirect Cost：\990000 ）
A series of environmentally friendly half-Heusler thermoelectric alloys containing multiscale microstructure (i.e., antisite point defects, the nanoscale and microscale spinodal-decomposed half-Heusler domains, the nanoscale full-Heusler nanoprecipitates of various sizes and morphologies) have ben successfully developed in this research. It was found that the high-temperature cyclic heat-treatment process and suitable amount of doping were two viable approaches to improve the overall thermoelectric performance of the alloys. The Nb-doped and cyclic-heat-treated half-Heusler alloy has shown the highest ZT to 0.91 at 752 K. The improvements are caused by the increment of power factor and the reduction of thermal conductivity. The former was due to the doping effects and the presence of the full-Heusler nanoprecipitates. The latter were closely associated with the diffuse interfacial structures among the multiscale microstructure upon the high-temperature cyclic heat-treatment process.
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Understanding of the hardening mechanism in FCC based ordered structures induced by interstitially ordered solute atoms
Grant number：17K18977 2017.6 - 2019.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Research (Exploratory)
Kimura Yoshisato
Grant amount：\6370000 （ Direct Cost: \4900000 、 Indirect Cost：\1470000 ）
Understanding of the solid solution strengthening mechanism due to interstitial elements was placed as a final goal. As the first step, E21 type intermetallic compound Ni3AlC which has an interstitial carbon atom in the octahedral interstice at the cell center was selected to investigate local elastic and plastic deformation behavior on atomistic scale using nano-indentation method while comparing with L12 type Ni3Al. So called pop-in event, discontinuous strain burst appearing on a load-penetrating depth curve corresponding to the onset of plastic deformation, was analyzed. Effect of C atoms on solid solution strengthening was found to be larger than that of Al atoms for off-stoichiometric composition on the Al-rich side. It was also indicated that C atoms might increase stress necessary to generate dislocations while they may less affect the mobility of dislocations.
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Improvement of environment-friendly thermoelectric materials based on lattice defects control of ordered structures
Grant number：23246120 2011.11 - 2014.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)
KIMURA Yoshisato, CHAI Yaw-wang
Grant amount：\14040000 （ Direct Cost: \10800000 、 Indirect Cost：\3240000 ）
Thermoelectric power generation system, that enables to generate electrical power by the temperature difference based on unused thermal power resources, can contribute greatly to the reduction of greenhouse gas emission and to the promotion of energy conservation. The objective of the present work is to fabricate thermoelectric materials that have high potential for the practical use, excellent cost performance and environment-friendly compositions. Interests of this work were focused on half-Heusler compounds to propose new and original approaches for improving thermoelectric properties by positively controlling several types of lattice defects, defects in ordered atomic arrangements (ordered structure). Consequently, the enhancement of thermoelectric performance of half-Heusler compound alloys was successfully achieved by controlling a good balance of electrical properties and thermal properties.
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Understanding for controlling microstructure formation related to two-phase separation based on the same frame of ordered structures
Grant number：23656453 2011 - 2012
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research
KIMURA Yoshisato
Grant amount：\3770000 （ Direct Cost: \2900000 、 Indirect Cost：\870000 ）
Intermetallic compounds which have ordered crystal structures are used for applications such as strengthening phases of heat resistant alloys for jet engines and gas turbines, and thermoelectric materials which can directly convert the waste heat into electrical power. We focused on two pairs of intermetallic compounds which have falsely similar ordered structures and are separated as two different phases. Morphology of microstructure of Half-Heusler type TiNiSn, an excellent thermoelectric material, was analyzed especially focusing on interfaces formed by phase separation between Half-Heusler and Heusler pahse. Effects of resemblance and difference in ordered structures between L12 and E21 types on mechanical properties were examined for Ni3 Al with solute carbon atoms.
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Improvement of Thermoelectric Properties and Development of Fabrication Processes for Environmental-friendly Half-Heusler Thermoelectric Materials
Grant number：19206073 2007 - 2009
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)
KIMURA Yoshisato, MISHIMA Yoshinao
Grant amount：\46020000 （ Direct Cost: \35400000 、 Indirect Cost：\10620000 ）
We have focused on half-Heusler type compounds MNiSn (M=Ti, Zr, Hf) as environmental-friendly thermoelectric materials which allow us the materials design without depending on toxic elements. Thermoelectric properties of MNiSn were evaluated as their intrinsic physical properties, and the phase separation of TiNiSn from ZrNiSn and HfNiSn, i.e. between the same half-Heusler ordered structure, was determined with related phase equilibria. New fabrication processes were proposed based on the reaction between Sn (liquid) and TiNi (solid) as well as based on the reduction of SnO_2 and oxidization of Ti. Thermoelectric properties were evaluated for TiNiSn/Ti-oxides composite alloys.
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アトミスティック・メタラジーによる第3世代金属間化合物研究への新展開
Grant number：18636013 2006
日本学術振興会 科学研究費助成事業 基盤研究(C)
三島 良直, 木村 好里, 細田 秀樹, 竹山 雅夫, 中野 貴由, 乾 晴行
Grant amount：\3400000 （ Direct Cost: \3400000 ）
現在金属間化合物材料研究は1980年代のNi-Al系化合物材料研究が金属間化合物の構造用材料としての可能性・有用性を明確にした第1世代、そして1980年代後半からのTi-Al系を中心とした研究により化合物のみからなる実用材料の開発へとつながった第2世代を経て現在に至っている。現在そしてこれからの第3世代においては、複雑構造系を含むその他の金属間化合物や化合物を含む新たな複相合金、さらには機能性金属間化合物へと研究対象が拡大し、近い将来で実用化の可能性が高い化合物種も見出され始めている。さらに、格子欠陥の質的制御を中心とするナノオーダーでの構造・欠陥制御、さらには、「金属間化合物学」ともいうべき学理の構築に向かった方向性も見え始めている。本調査研究ではこうした金属間化合物研究の変遷や新しい展開について、国内では、日本金属学会の金属間化合物材料セッションを中心とした講演発表(2回/年)、さらに国際的には、MRS(Materials Research Society)で1984年にスタートした「High-Temperature Ordered Intermetallics Alloys」シリーズでの講演大会(1回/2年)における金属間化合物研究の2006年までの流れとこれからの新たな研究展開について整理するとともに、金属間化合物研究の新たな展開に向けた最新情報の共有化のため、これまでに国内200名を越える関連研究者のメーリングリスト(interm@)を整備し、世界的研究成果を含め瞬時の情報交換を可能とした。
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高性能と低環境負荷の実現を目指すHalf-Heusler型化合物熱電材料の設計開発
2004
Grant type：Competitive
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Improvement of Thermoelectric Performance of Intermetallic Compound Phases by Reduction of Thermal Conductivity through Phonon Scattering
Grant number：16360345 2003 - 2006
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
KIMURA Yoshisato, MISHIMA Yoshinao
Grant type：Competitive
We have focused on half-Heusler MNiSn (M=Hf, Zr) as potential candidates for n-type thermoelectric materials used at high temperatures around 1000 K. It is possible to achieve large Seebeck coefficient and low electrical resistivity in single-phase alloys fabricated by directional solidification using the optical floating zone melting method (OFZ-DS). To further improve thermoelectric properties through lowering the lattice thermal conductivity, we proposed a new fabrication process combining OFZ-DS method with hot-pressing (HP) aiming to produce composite microstructures. It is advantageous to introduce interfaces for reducing the lattice thermal cnductivity by phonon scattering. Monolithic half-Heusler alloy powders were prepared from OFZ-DS ingots, and sintered by HP under various conditions. In HfNiSn/ZrNiSn composite, continuous solid solution (Hf, Zr) NiSn phase plays a role to reduce the lattice thermal conductivity by the solid solution effect. A composite of fine ZrO_2 particles homogeneously dispersed in the HfNiSn matrix was also prepared aiming to reduce the lattice thermal conductivity. We anticipated that electrical properties would be sacrificed by introduced interfaces, though, excellent power factors can be achieved. Thermal diffusivity can be apparently reduced by introducing interfaces while heat capacity is affected by interfaces and impurity phases formed during HP process. It is hard to suppress the formation of impurity oxide phases during HP process. Considering the oxide formation in the sintering process, HfNiSn/ZrNiSn composite was sintered under the Ar-4%H_2 deoxidizing atmosphere using compact powders without applying load. We found that deoxidizing atmosphere is quite effective to suppress the oxide formation and that thermal conductivity can be lowered by controlling density, i.e. porosity, of sintered specimens. It indicates that the optimization of density by controlling the applied load is effective to achieve the best balance of low thermal conductivity and excellent electrical properties, which leads us to maximize thermoelectric performance of half-Heusler based thermoelectric materials.
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Solidification process control of intermetallic-based multi-phase heat resistant alloys applicable at ultra-high temperature
Grant number：15206075 2003 - 2005
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)
MISHIMA Yoshinao, HOSODA Hideki, KIMURA Yoshisato
Grant amount：\49270000 （ Direct Cost: \37900000 、 Indirect Cost：\11370000 ）
Design of heat resisting materials has involved the microstructure control on two- or multi-phase alloys in which an intermetallic compound is the major constituents. Higher the operating temperature is desired, such compounds are favored as having a complex ordered crystal structure and therefore a high melting point. Since such a intermetallic compound is brittle in nature, strategy for the microstructure control has been to introduce some amount of ductile phase and to design the morphology of the mixture via for example an invariant reaction. However in the previous work on developing a new class of heat resisting materials which exhibit a superior performance than the commercial nickel-base superalloys, solidification defects such as macro-voids and micro-cracks have been frequently resulted during solidification. It should be caused by the difference in thermal expansion coefficient between a brittle intermetallic metallic phase, which is most often appears as a primary solid phase from a liquid, and a ductile phase formed through an invariant reaction. It is necessary to avoid those defects by controlling the solidification process in order to obtain a sound ingot so that the evaluation of mechanical properties should be accurate to design a proper microstructure control.
In the present work, the solidification process parameters have been investigated in alloys based on such refractory metal elements as Mo, Ta, and Nb in which their silicides such as MoSi_2 are the major constituent with some amount of ductile primary solid solution of each element with silicon. Comparison has been made with the processes of arc melting and optical floating zone (OFZ) methods. Also the design of a new class of iron-base alloys in which Fe_3AlC is a major constituent has been attempted. It has been shown that by proper choice of solidification rate upon OFZ method, a sound ingot can be fabricated with aligned two-phase mixture to exhibit an excellent combination of high temperature strength and some ductility -
Trade-off Balancing between Strength and Toughness of Multi-Phase alloys containing Brittle Phases
Grant number：12305044 2000 - 2002
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)
MISHIMA Yoshinao, KATO Masaharu, KUMAI Shinji, KIMURA Yoshisato
Grant amount：\44160000 （ Direct Cost: \39900000 、 Indirect Cost：\4260000 ）
Trade-off balancing between strength and toughness has been systematically investigated in alloys having brittle an intermetallic phase in a ductile matrix or having a ductile phase within the brittle intermetallic matrix. The systems investigated include Nb-Si base alloy, Fe-base ferritic alloys, an austenitic Fe-Mn-Al-C alloys, Cu-alloys and an Al-Fe alloy. The Nb-Si alloys consist of brittle Nb_5Si_3 and a ductile Nb solid solution phase in a mixed lamellar morphology, which is a candidate material for ultra-high temperature application such as components in gas-turbine engines. Both high temperature strength and room temperature toughness of the alloy depend on the morphology and spacings of the lamellar microstructure. A method for optimization of trade-off properties has been successfully suggested with a consideration on the toughening mechanism by the ductile phase in a brittle matrix.
Similar investigation was made in the Fe-Cr base ferritic alloys in which the Laves phase is the strengthening agent, and also in Fe-Mn-Al-C in which the strengthening is achieved by the precipitation of E2_1-type intermetallic compound. In both cases change in morphology of the brittle phase in relation to the crystallographic orientation and misfit between two-phases control the strength and toughness, or ductility of the alloys.
The present work successfully provides many valuable basic information on the microstructure-mechanical properties of advance metallic materials that helps in designing the alloys for various structural applications. -
E2_1_型金属間化合物Co_3_AlCおよびNi_3_AlCの磁気特性と相安定性
2000
Grant type：Competitive
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Magnetic Properties and Phase Stability of E2_1_ type Intermetallic Compound Co_3_AlC and Ni_3_AlC
2000
Grant type：Competitive
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C15ラーベス相HfV2+Nbにおける変形双晶機構
1996 - 2000
Grant type：Competitive
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The Mechanism of Mechanical Twinning in the C15 Laves Phase HfV2+Nb
1996 - 2000
Grant type：Competitive
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Co基耐熱金属間化合物合金の設計開発
Grant number：07750781 1995
日本学術振興会 科学研究費助成事業 奨励研究(A)
木村 好里
Grant amount：\1000000 （ Direct Cost: \1000000 ）
高温構造用材料として開発が期待される金属間化合物合金は常温で極めて脆いため、これまでに常温延性改善を狙った多くの研究が行われてきた。延性化と高強度化は互いに相反する事象であり、高温強度を維持することが実用化に際して最終的な課題となる。そこで、延性を改善したCo基耐熱金属間化合物合金の高温強度特性を調べることを目的として本研究を行った。供試合金にはCo-Al-C3元系B2/E2_1/(CO)3相合金、および微量B添加Co-AI-Ni-Ti4元系B2/L1_2/(Co,Ni)3相合金を選んだ。B2相はCoAl、E2_1はCo_3AlC、Ll_2は(Co,Ni)_3(Al,Ti)、(Co)と(Co,Ni)は一次固溶体である。
Co-Al-C合金では初晶グラファイトが大量に偏析するため、真空高周波溶解による大型インゴット作成は不可能であり、製造プロセスの改良が必要であることがわかった。そこで、室温引張試験と高温クリープ試験はCo-Al-Ni-Ti合金に対して行った。常温延性の改善は、B2とLl_2の2つの化合物に一次固溶体を加えた3相合金とすることで達成した。まず、平行部直径4mmの丸棒試験片を用いて引張試験を行い、室温での機械的性質を調べた。ひずみ速度3.3×10^<-3>S^<-1>で試験を行った結果、塑性ひずみ4.3%の優れた引張延性、0.2%耐力770MPa,引張強度1100MPaの高強度を示すことを明らかにした。高温引張クリープ試験は平行部直径6mmのJIS規格フルサイズ試験片を用いて一定応力で行った。850℃、50MPaでの試験結果は、破断時間47時間、最小クリープ速度4.8×10^<-7>s^<-1>である。応力を100Mpaに、または温度を900℃にすると、いずれの場合もクリープ強度は著しく低下する。破断ひずみは約40%と極めて延性的であり、これが低いクリープ抵抗の主因となる。この合金は、クリープ寿命の20%程度という短い遷移城を経て最小クリープ速度を示し、緩やかに加速に転じて破断に至る。破断後の組織観察の結果、一次固溶体相中にき裂の存在が確認され、加速域の発現はボイドを起点としたき裂の成長過程に起因すると考えられる。 -
第9, 10族遷移金属元素をTとするE21-T3Al(C, B)の相安定性と状態図
Grant type：Competitive
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Toughening and Strengthening of the Gamma-Fe/E21-(Fe,Mn)3AlC Two-Phase Alloys through the Microstructural Control
Grant type：Competitive
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Phase diagrams and phase stability of the E21-T3Al(C, B) at the element T of the 9, 10 group transition metals
Grant type：Competitive
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組織制御によるGamma-Fe/E21-(Fe,Mn)3AlC二相合金の強靱化
Grant type：Competitive