Effect of annealing temperature on coercivity of Nd–Fe–B magnets with TbFeAl doping by process of hot-pressing
Shu Ze-Teng1, 2, Zheng Bo2, †, Ding Guang-Fei2, Liao Shi-Cong2, Di Jing-Hui2, Guo Shuai2, ‡, Chen Ren-Jie2, Yan A-Ru2, Shi Lei1
       

(a) Demagnetization curves of original magnet and the HPP magnets annealed at 900 °C, 1000 °C, 1030 °C, and 1060 °C. (b) Br and Hcj of the HPP magnets annealed at 900 °C, 1000 °C, 1030 °C, and 1060 °C.