Effects of terbium sulfide addition on magnetic properties, microstructure and thermal stability of sintered Nd–Fe

Effects of terbium sulfide addition on magnetic properties, microstructure and thermal stability of sintered Nd–Fe–B magnets

Li Xiang-Bin¹, Liu Shuo¹, Cao Xue-Jing^{1, 2}, Zhou Bei-Bei¹, Chen Ling², Yan A-Ru², Yan Gao-Lin^{1, †,}

(a) SEM image of the 3 wt.% Tb₂S₃-added magnet and concentration distribution mapping of (b) Tb, (c) Nd, (d) O, and (e) S elements in the Nd-rich phase and 2:14:1 matrix phase obtained from the same region as panel (a).