COERCIVITY ANALYSIS IN SM(CO,CU,FE,ZR)7-8 MAGNETS

被引：12

作者：

GIVORD, D ^{[1
]}

ROSSIGNOL, MF ^{[1
]}

TAYLOR, DW ^{[1
]}

RAY, AE ^{[1
]}

机构：

[1] UNIV DAYTON,SCH ENGN,DAYTON,OH 45469

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1992年 / 104卷 / pt 2期

关键词：

D O I：

10.1016/0304-8853(92)90517-R

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The coercivity mechanisms in Sm(Co, Cu, Fe, Zr)7-8 magnets are analysed. The experimental results are discussed with reference to those obtained in sintered magnets. From the high temperature part of the thermal dependence of the coercive field, consistent values of the phenomenological parameters alpha (barrier coefficient) and N(eff) (effective dipolar coefficient) are obtained. However, the effects of activation at low temperatures are much more important than in sintered magnets and the angular dependence of H(c) does not correspond to that usually expected for pinning-controlled coercivity.

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页码：1126 / 1128

页数：3

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