Oba Yojiro

Affiliation and department：

Research field (1)： Nanomaterials

Research theme for competitive and other funds (15)：

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Papers (88)：

三浦博己, 松尾潔剛, 大場洋次郎, 小林正和, 青柳吉輝, 渡邊千尋. ヘテロナノ組織Cu-Zn-Si合金溝ロール圧延棒材の低温焼鈍と再結晶組織. 銅と銅合金. 2024. 63. 82
三浦博己, 松尾潔剛, 大場洋次郎, 青柳吉輝, 渡邊千尋. ヘテロナノ組織Cu-Zn-Si合金溝ロール圧延棒材の強化機構. 銅と銅合金. 2024. 63. 56
T. Sugita, H. Yoshida, H. Kodama, T. Ishigaki, Y. Oba. Evaluation of the Effect of Composition and Firing Temperature on Pore Size Distribution of Ceramics by SANS Measurement. Journal of the Ceramic Society of Japan. 2024. 132. 548-554
Yojiro Oba, Wataru Nakamura, Akihiro Takahashi, Masakazu Kobayashi, Hiromi Miura. Grain-refinement by MDFing under Decreasing-Temperature Conditions Followed by Room-Temperature MDFing of AZX611Mg Alloy and Change in Mechanical Properties. Journal of the Japan Institute of Metals and Materials. 2024. 88. 119-127
Koji Kaneko, Chihiro Tabata, Masato Hagihala, Hiroki Yamauchi, Yojiro Oba, Takayuki Kumada, Masato Kubota, Yuki Kojima, Nozomi Nabatame, Miki Sasaki, et al. New Standard for Low Temperature Sample Environment at JAEA/JRR-3. JPS Conference Proceedings. 2024. 41. 011015

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MISC (120)：

Y. Oba, H. Sasaki, H. Muramatsu, M. Ito. Characterization of Precipitates in Cu-Ni-Si alloy using Small-Angle X-ray Scattering. KURNS Progress Report 2023. 2024. 110
間宮広明, 大場洋次郎, 大久保忠勝. 中性子小角散乱によるパワーエレクトロニクス用軟磁性材料の磁気構造解析. 施設供用利用課題実施報告書(2022A・2022B). 2023. 2022A-A36
土田紀之, 廣井孝介, 大場洋次郎. 高強度マルテンサイト鋼におけるセメンタイト粒子の定量評価. 施設供用利用課題実施報告書(2022A・2022B). 2023. 2022A-A21
吉田博和, 児玉弘人, 松川健, 石垣徹, 杉田剛, 大場洋次郎. 中性子小角散乱を用いた笠間焼陶器の気孔サイズ評価. 施設供用利用課題実施報告書(2022A・2022B). 2023. 2022A-A11
Y. Oba, H. Sasaki. Characterization of Precipitates in Cu alloy using Small-Angle X-ray Scattering. KURNS PROGRESS REPORT 2022. 2023. 101

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Patents (1)：

Lectures and oral presentations (237)：

中性子共鳴吸収イメージングを用いたガラス固化体評価研究
(R6年度中性子イメージング研究会 2024)
Magnetic small-angle neutron scattering of high-pressure torsion Fe
(Workshop on the latest application of quantum beam to Materials Science 2024)
Changes in Microstructure and Mechanical Properties by Deformation-Destricted Forging Followed by Extrusion of AZ80Mg Alloy Rod
(ICOTOM20 2024)
In-situ observation of impact tensile deformation depending on sampling direction in heavy rolled fine grain metals by using synchrotron radiation
(ICOTOM20 2024)
小角散乱法を用いた金属材料中のナノ構造の解析
(中性子産業利用推進協議会ものづくり基盤研究会 2024)

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Work history (6)：

2023/04 - 現在 Toyohashi University of Technology Department of Mechanical Engineering
- 現在理化学研究所客員研究員
2017/04 - 2023/03 Japan Atomic Energy Agency
2020/03 - 2021/03 University of Luxembourg visiting researcher
2012/04 - 2017/03 Kyoto University

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Committee career (14)：

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Awards (5)：

2023/11 - 第57回論文賞 Characterization of δNi2Si precipitates in Cu-Ni-Si alloy by small angle x-ray scattering, small angle neutron scattering and atom probe
2021 - 日本銅学会第55回論文賞 X 線・中性子小角散乱法及び3次元アトムプローブ法によるCu-Ni-Si合金中の析出相の解析
2019/11 - 日本中性子科学会日本中性子科学会奨励賞
2018/12 - 日本中性子科学会波紋President Choice 中性子透過率スペクトル測定を利用した新しい中性子散乱実験
2012/01 - Award for Encouragement of Research of Materials Science Characterization of Morphology and Chemical Composition of Inclusion in Steel Using Small-Angle X-ray and Neutron Scattering

Association Membership(s) (3)：

THE JAPANESE SOCIETY FOR NEUTRON SCIENCE , THE IRON AND STEEL INSTITUTE OF JAPAN , THE JAPAN INSTITUTE OF METALS AND MATERIALS

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