Abstract：In this paper, the magnetic properties, density and grain size of (PrNd)27.8CoxDy3FebalB0.97(x=20, 25) magnets
were investigated to explore the best heat treatment process, and the corresponding temperature stabilities
were compared with commercial magnet 40M. The experimental results show that high Co content enhances the
Curie temperature significantly while the intrinsic coercive force decreases in some extent. The temperature stability
(temperature coefficient and irreversible flux loss) not only depend on the Curie temperature, but also are affected
by the coercive force. Compared with the commercial magnet 40M, temperature coefficient and irreversible flux
loss of the magnet with high Curie temperature has been significantly improved.
李栋，董生智，徐吉元. 高居里温度Nd-Fe-B磁体的制备及温度稳定性研究[J]. 粉末冶金工业, 2021, 31(03): 25-31.
LI Dong，DONG Shengzhi，XU Jiyuan. Preparation and research on temperature stability of Nd-Fe-B magnets with high
Curie temperature. Powder Metallurgy Industry, 2021, 31(03): 25-31.
2021, Vol. 31 
