[S1] Element strategy for high performance permanent magnets 8 -Fundamental and basic research toward next-generation novel materials- | 日本金属学会2021年春期(第168回)講演大会

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Session Details

公募シンポジウム講演

[S1]Element strategy for high performance permanent magnets 8 -Fundamental and basic research toward next-generation novel materials-

Thu. Mar 18, 2021 1:00 PM - 4:30 PM JST
Thu. Mar 18, 2021 4:00 AM - 7:30 AM UTC

Rm. A ZoomRm.A

Chair:Yoshihiro Gohda

※表示の講演時間には質疑応答時間も含みます。
（質疑応答時間5分、基調講演と招待講演は5～10分）

1:00 PM - 1:15 PM JST(4:00 AM - 4:15 AM UTC)

[S1.13]Formation mechanism of HRE-rich shell and magnetic property change of Nd-Fe-B sintered magnets by 2 Step grain boundary diffusion process

*Kaile ZHONG^1,2, Taisuke SASAKI¹, Yasuhiro UNE³, Kazuhiro HONO¹, Tadakatsu OHKUBO^1,2 (1. NIMS, 2. Tokyo Univ. of Science, 3. Daido Steel Co., Ltd.)

1:15 PM - 1:30 PM JST(4:15 AM - 4:30 AM UTC)

[S1.14]Effect of composition on the chemistry of Nd-rich grain boundary phase in Nd-Fe-B magnet

Jheyu LIN¹, *Taisuke SASAKI¹, Tadakatsu OHKUBO¹, Kazuhiro HONO¹ (1. NIMD)

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[S1.15]Effective search of grain-boundary-phase concentration in rare-earth magnets

*Yui HAYASHI¹, Yuhki TUKADA², Toshiyuki KOYAMA² (1. Nagoya Univ., 2. Nagoya Univ.)

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)

[S1.16]Search for stable phases in Y-Co-B ternary system by evolutionary algorithm

*Takahiro Ishikawa¹, Taro Fukazawa², Guangzong Xing¹, Terumasa Tadano¹, Takashi Miyake² (1. NIMS, 2. AIST)

2:00 PM - 2:20 PM JST(5:00 AM - 5:20 AM UTC)

[S1.17]Finite-temperature stability of R_1-xFe_x(R = Y, Ce, Nd, Sm, and Dy) alloys from first-principles calculation

*Guangzong Xing¹, Takahiro Ishikawa¹, Yoshio Miura¹, Takashi Miyake², Terumasa Tadano¹ (1. National Institute for Materials Science (NIMS)、2. National Institute of Advanced Industrial Science and Technology (AIST))

2:20 PM - 2:40 PM JST(5:20 AM - 5:40 AM UTC)

break

2:40 PM - 2:55 PM JST(5:40 AM - 5:55 AM UTC)

[S1.18]Estimation of the Magnetic Moment of (Nd_0.8Dy_0.2)₂Fe₁₄B as the Main Constituent of REPM Determined by Measuring Heat Capacities at 2 - 900 K

*Rikuto KINJO¹, Masao MORISHITA¹, Ai NOZAKI¹, Hiroaki YAMAMOTO¹, Taichi ABE² (1. Univ. Hyogo, 2. NIMS)

2:55 PM - 3:30 PM JST(5:55 AM - 6:30 AM UTC)

[S1.19][Keynote Lecture] Role of Thermal Fluctuations in Coercivity & Nucleation

*Yuta Toga^1,2 (1. The University of Tokyo; ISSP, 2. ESICMM)

3:30 PM - 3:55 PM JST(6:30 AM - 6:55 AM UTC)

[S1.20]Effects of the magnetic anisotropy of surface Nd atoms and thermal fluctuation on the coercivity in Nd magnets

*Masamichi Nishino¹, Ismail Uysal¹, Hiroshi Hayasaka¹, Miyashita Seiji^1,2 (1. NIMS, 2. ISSP, Univ. of Tokyo)

3:55 PM - 4:10 PM JST(6:55 AM - 7:10 AM UTC)

[S1.21]Analysis of magnetic properties at the zigzag interface between Nd₂Fe₁₄B and Nd₂Fe using first-principles calculations

*Sonju Kou¹, Yoshihiro Gohda¹ (1. Dept. Mater. Sci. Eng., Tokyo Tech)

4:10 PM - 4:30 PM JST(7:10 AM - 7:30 AM UTC)

[S1.22]Coercivity mechanism of Nd-Fe-B magnet based on the angular dependence of coercivity

*Jiangnan Li¹, Hossein Sepehri-Amin¹, Tadakatsu Ohkubo¹, Kazuhiro Hono¹ (1. ESICMM-NIMS)

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