EFFECT OF OXYGEN, CARBON, AND NITROGEN CONTENTS ON THE CORROSION-RESISTANCE OF ND-FE-B MAGNETS

被引:39
作者
KIM, AS
CAMP, FE
DULIS, EJ
机构
[1] Crucible Research Center, Division of Crucible Materials Corporation, Pittsburgh, PA 15230
关键词
Magnets;
D O I
10.1109/20.104576
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
Although NdFeB magnets exhibit outstanding magnetic properties, they have suffered from poor corrosion resistance in humid air. Because of this, various problems occur such as degradation of magnetic properties and/or contamination of the magnetic circuits. The corrosion rate of NdFeB magnets is found to vary with 0, C, and N contents, and to reach the minimum when these elements are within the ranges: O > 0.6% (preferably 0.6 to 1.2%), C = 0.06 to 0.14%, N = 0.05 to 0.10%. © 1990 IEEE
引用
收藏
页码:1936 / 1938
页数:3
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