E-resources
Peer reviewed
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Peng, Baixing; Ma, Tianyu; Zhang, Yujing; Jin, Jiaying; Yan, Mi
Scripta materialia, 04/2017, Volume: 131Journal Article
To improve the thermal stability of the Nd-Ce-Fe-B sintered magnets, Y was incorporated via the binary main phase (BMP) approach. At the same substitution level for Nd (9wt%), the absolute value of the coercivity temperature coefficient from 293 to 393K for the Nd-Ce-Y-Fe-B magnet is 16.2% lower than that for the Nd-Ce-Fe-B one. This is attributed to the weakened temperature dependence of the magnetocrystalline anisotropy field and the magnetization as Y preferably enters into the 2:14:1 phase. It suggests that Y and Ce co-substitution for Nd is appealing to prepare low-cost RE-Fe-B permanent magnets with improved thermal stability. Display omitted
