Substitution of Ce for (Nd,Pr) in Melt-Spun (Nd,Pr)-Fe-B Powders

被引：21

作者：

Chen, Zhongmin ^{[1
]}

Lim, Yong Keat ^{[1
]}

Brown, David ^{[1
]}

机构：

[1] Molycorp Magnequench Technol Ctr, Singapore 117525, Singapore

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2015年 / 51卷 / 11期

关键词：

Ce substitution; melt spun; Nd-Fe-B; HARD MAGNETIC-MATERIALS;

D O I：

10.1109/TMAG.2015.2437376

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The effect of Ce substitution for (Nd,Pr) on structure, microstructure, and magnetic properties of [(Nd0.75Pr0.25)(1-x)Ce-x](11.65)Fe82.75B5.6 (x = 0-0.5) melt-spun powders has been studied. It has been found that all Ce-substituted powder samples retain the R2Fe14B (R = Nd, Pr, Ce) single-phase structure with a similar grain size in the range of 20-22 nm. While Ce substitution leads to lower magnetic properties, lower Curie temperature, and higher flux aging loss in bonded magnets, (Nd,Pr,Ce)-Fe-B melt-spun powders with up to 50% Ce substitution exhibit acceptable overall room-temperature magnetic properties and improved magnetization behavior, and offer a potential low-cost alternative product for low-to-moderate-temperature applications.

引用

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