Angular dependence of coercivity in Sm(Co, Fe, Cu, Zr)z magnets

被引：10

作者：

Panagotopoulos, I ^{[1
]}

Gjoka, M

Niarchos, D

机构：

[1] Univ Ioannina, Dept Mat Sci & Engn, GR-45110 Ioannina, Greece

[2] Natl Ctr Sci Res Demokritos, Inst Mat Sci, Athens 15310, Greece

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 279卷 / 2-3期

关键词：

magnetization reversal mechanisms; angular dependence of coercivity; precipitation hardened magnets; high temperature magnets;

D O I：

10.1016/j.jmmm.2004.02.029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The angular dependence of coercivity in a Sm(Co0.75F0.12Cu0.10Zr0.03)(7.6) alloy is studied as a function of temperature in order to probe possible indications of a change in the reversal mechanism. The results show a gradual change of the magnetization reversal mechanism from pinning (at room temperature) to nucleation (at 500degreesC) with a mixture of both mechanisms co-existing in a large temperature range. The relatively weak angular dependence does not agree quantitatively with the degree of grain misalignment calculated by refinement of X-ray diffraction data. Possible explanations are discussed. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：389 / 395

页数：7

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