Enhancing the grain boundary diffusion efficiency of Tb for Nd-Fe-B magnets using multi-element composite diffusion source

• Published in: Journal of alloys and compounds Vol. 984; p. 174003
• Main Authors: Pan, Jing, Cao, Shuai, Li, Yuhao, Li, Qing, Ding, Guangfei, Zheng, Bo, Guo, Shuai, Fan, Xiaodong, Chen, Renjie, Yan, Aru
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.05.2024
• Subjects: Coercivity; Efficient utilization of Tb; Grain boundary diffusion; Nd-Fe-B; Grain boundary diffusion; Nd-Fe-B; Coercivity; Efficient utilization of Tb

Grain boundary diffusion of the heavy rare-earth element Tb, facilitated by multielement alloys, was investigated in Nd-Fe-B sintered magnets. This study systematically examined magnets treated with various diffusion sources: conventional TbHx powders, a mixture of TbHx and Pr45.0Cu18.3Al27.5Ga9.2 (...