THE TEMPERATURE STABILITY OF NDFEB AND NDFEBCO MAGNETS

被引：21
|
作者：
CLEGG, AG
COULSON, IM
HILTON, G
WONG, HY
机构：
[1] Magnet Centre, Physics Division, School of Electrical Engineering and Applied Physics, Sunderland Polytechnic, Tyne and Wear
来源：
IEEE TRANSACTIONS ON MAGNETICS | 1990年 / 26卷 / 05期
关键词：
D O I：
10.1109/20.104578
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：
A range of materials was investigated including sintered low and high coercivity ternary (NdFeB) and quarternary (NdFeBCo) magnet alloys and bonded Magnequench (MQI). The effect of temperature including irreversible and reversible changes of magnetization are discussed. Magnets with two different working points were investigated. Temperature effects as a function of time were determined for magnets held at 100°C for up to 200 hours It was found that the higher the coercivity HcM and loop-squareness the better the temperature stability of the magnet. The highest coercivity material investigated was produced by using hydrogen decrepitation of the magnet powder. © 1990 IEEE
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页码：1942 / 1944
页数：3
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