Long-term aging of Sm-2(Co,Fe,Cu,Zr)(17) permanent magnets at 300 and 400 degrees C

被引：16

作者：

Liu, S ^{[1
]}

Hoffman, EP ^{[1
]}

Brown, JR ^{[1
]}

机构：

[1] AEROSP POWER DIV,WRIGHT PATTERSON AFB,OH 45433

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1997年 / 33卷 / 05期

关键词：

D O I：

10.1109/20.619595

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：

Long-term aging experiments were carried out for Sm-2(Co,Fe,Cu,Zr)(17) permanent magnets at 300 and 400 degrees C and both traditional and application-oriented characterizations were performed, application-oriented characterizations maximum energy product of the magnet at 300 degrees C dropped similar to 10% after aging at 300 degrees C for 9,200 hours, Further, the maximum energy product of the same magnet at 400 degrees C dropped similar to 43% after aging at 400 degrees C for 4,300 hours, The findings also indicate that the thermal stability of Sm-2(Co,Fe,Cu,Zr)(17) magnets is extremely sensitive to their iron content in the magnet alloys. It is anticipated that the high temperature performance of Sm-2(Co,Fe,Cu,Zr)(17) magnets can be significantly improved by decreasing their iron content.

引用

页码：3859 / 3861

页数：3