Hou, Henan; Zhao, Wei; Wang, Renquan; Xiao, Yao; Liu, Ying - 2022
A novel grain boundary diffusion process with low-pressure technology was employed to develop Nd-Fe-B sintered magnet samples as thick as 2mm. The uniform and successive Nd-rich phase in the low-pressure diffused magnets promotes Tb atoms to permeate inside the magnets, and the diffusion depth...