ホーム > 研究活動 > 口頭発表(2017) > Coercivity enhancement of hot-deformed Nd-Fe-B magnets by the eutectic grain boundary diffusion process using Nd64Fe12Ga20Cu4 alloy

研究活動

Coercivity enhancement of hot-deformed Nd-Fe-B magnets by the eutectic grain boundary diffusion process using Nd64Fe12Ga20Cu4 alloy

62nd Annual Conference on Magnetism and Magnetic Materials

LIU Lihua(NIMS), Sepehri Amin Hossein(NIMS), SASAKI Taisuke(NIMS), OHKUBO Tadakatsu(NIMS), YANO Masao(Toyota), SAKUMA Noritsugu(Toyota), KATO Akira(Toyota), SHOJI Tetsuya(Toyota), HONO Kazuhiro(NIMS)

Abstract

The eutectic grain boundary diffusion process was applied to the hot-deformed Nd-Fe-B magnets using Nd-Fe-Ga-Cu alloy as the diffusion source. In this work, Nd-Fe-Ga-Cu and Nd-Ga-Cu diffusion-processed samples showed the same coercivity of 2.2 T, while Nd-Fe-Ga-Cu diffusion-processed sample demonstrated a higher degree of texture, thus a higher remanence too. In this talk, the mechanism of coercivity enhancement was addressed through detailed SEM/TEM characterizations.


研究活動

文部科学省

文部科学省
元素戦略プロジェクト(活動紹介)
NIMS磁石パートナーシップ

元素戦略拠点

触媒・電池元素戦略拠点
触媒・電池元素戦略研究拠点 (京都大学)
東工大元素戦略拠点
東工大元素戦略拠点 (東京工業大学)
構造材料元素戦略研究拠点
構造材料元素戦略研究拠点 (京都大学)
高効率モーター用磁性材料技術研究組合
高効率モーター用 磁性材料技術研究組合