Non-equilibrium nanostructured permanent magnets

High coercivity over 2–450 K

Co-doping Pr and Co achieves a non-equilibrium microstructure, overcoming both high- and low-temperature limits to maintain excellent magnetic properties over an exceptionally wide temperature range.

Wu, Yuye · Liao, Xuefeng · Zeng, W. W. · Skokov, Konstantin P. · Gutfleisch, Oliver · Wu, Haichen · Yuxiang, Xiao · Xu, Yichen · Xiaoxiao, Wang · Keyu, Yan · Yunquan, Li · Zhang, Haitian · Zhou, Qing · Dong, Ying · Kang, Dazhuang · Jiang, Chengbao

Acta Materialia 2025

Specifications

Pr Fe Co
{'zh': '80.4', 'en': '80.4'} Ga0

Advantages

Operational temperature range extended to 2–450 K

Heavy-rare-earth-free