Recent developments in RFe12-type compounds for permanent magnets

SCRIPTA MATERIALIA

卷:154

Article

Gabay, A. M.¹  Hadjipanayis, G. C.¹ 

[1] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA

关键词: lntermetallic compounds;    ThMn12;    Permanent magnets;    Coercivity;    Critical elements;   

DOI  :  10.1016/j.scriptamat.2017.10.033

来源: Elsevier

【 摘 要 】

This article discusses the recently intensified studies on the ThMn12-type hard magnetic compounds. Among the important developments were the synthesis of compounds superior to the Nd2Fe14B in saturation magnetization, the increased interest on Ce-substituted and rare-earth-free compounds and also the emergence of mechanochemistry as a method for manufacturing anisotropic powders with high coercivity. The theoretical studies might have had a greater impact if more attention was paid to the structural stability of these compounds. Little information is available on the fabrication of dense three-dimensional magnets; these efforts must be intensified for a successful implementation of the most advanced RFe12-type materials. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free