Improvement in coercivity, thermal stability, and corrosion resistance of sintered Nd–Fe–B magnets with Dy<sub>80</sub>Ga<sub>20</sub> intergranular addition

Improvement in coercivity, thermal stability, and corrosion resistance of sintered Nd–Fe–B magnets with Dy₈₀Ga₂₀ intergranular addition

Zhou Beibei¹, Li Xiangbin¹, Cao Xuejing¹, Yan Gaolin^{1, †,}, Yan Aru²

The back-scattered image (a) and WDS results for the spatial distribution of Ga (b), Fe (c), Dy (d), and Nd (e) across the intergranular phase and matrix phase grains in (Pr₈₀Nd₂₀)₃₁Fe_balB sintered magnets with 4 wt.% Dy₈₀Ga₂₀ addition.