High-temperature coercivity
Grain boundary diffusion of Tb forms low-misfit RE-rich phases, enhancing the nucleation field and increasing coercivity.
Qiang, Li · Chen, Zhaohui · Chong, He · Hongyun, Guo · Zhifeng, Huang · Zhou, Qing · Cui, Weibin
Materials Research Letters 2025
Ia-3-type phase exhibits lower lattice misfit with RE2Fe14B
Cu-rich grain boundary regions are critical for higher coercivity