Time-stability of sintered Nd-Fe-B permanent magnet with lower oxygen content

被引：1
|
作者：
刘国征 [1 ,2 ]
姚宏福 [3 ]
夏宁 [1 ]
赵明静 [1 ]
李波 [2 ]
喻晓军 [2 ]
机构：
[1] Research Center of Functional Materials,Baotou Research Institute of Rare Earth
[2] Department of Functional Materials,Advanced Technology and Materials,China Iron & Steel Research Institute Group
[3] Shenyang General Magnetic Co.,Ltd.
来源：
Journal of Rare Earths | 2010年 / 28(S1)卷 / S1期
基金：
中国国家自然科学基金;
关键词：
NdFeB magnet; rare earth magnet; magnetic flux loss; time stability;
D O I：
暂无
中图分类号：
TF124.5 [];
学科分类号：
080502 ;
摘要：
Time-stability of sintered Nd-Fe-B magnet with lower content of oxygen at different temperatures and humidity conditions for 400 d was investigated.Results showed that the magnetic flux loss was-0.68% for the non-electroplating samples and-0.43% for the electroplating samples at room temperature and average humidity was 25% during 400 d,respectively.The magnetic flux loss of the plated samples was lower than non-plated samples under the conditions of room temperature and with the average humidity of 54%,but the magnetic flux loss of the plated samples was larger than that of the non-plated sample at 80 oC.The magnetic flux loss of electroplated and non-electroplated sintered Nd-Fe-B magnets was less than 1% for 400 d,which showed that the N40SH grade magnets have good time stability.
引用
收藏
页码：396 / 398
页数：3
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