TEMPERATURE-DEPENDENCE OF THE COERCIVE FORCE IN ND4FE77B19

被引：23

作者：

ECKERT, D ^{[1
]}

MULLER, KH ^{[1
]}

HANDSTEIN, A ^{[1
]}

SCHNEIDER, J ^{[1
]}

GROSSINGER, R ^{[1
]}

KREWENKA, R ^{[1
]}

机构：

[1] VIENNA TECH UNIV,INST EXPTL PHYS,A-1040 VIENNA,AUSTRIA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1990年 / 26卷 / 05期

关键词：

D O I：

10.1109/20.104541

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 temperature dependence of coercivity JHc of Fe3B-based Nd4Fe77B19 permanent magnetic materials is analysed. The coercivity of these melt-spun materials vanishes above the Curie temperature of the minor phase Nd2Fe14B. As well as melt-spun Nd-rich magnets, Nd4Fe77B19 magnets show a maximum in the JHc versus T curve at low temperatures. The coercivity of these melt-spun materials has a smaller temperature coefficient than sintered Nd-rich NdFeB magnets. The relation of the observed T-dependence of JHc, to the anisotropy field HA(T) of Nd2Fe14B is discussed. © 1990 IEEE

引用

页码：1834 / 1836

页数：3