A Modified Kondorsky Model for Describing the Magnetization Reversal Processes in Nd-Fe-B Permanent Magnets

被引：4

作者：

Urzhumtsev, A. N. ^{[1
,2
]}

Mal'tseva, V. E. ^{[1
]}

Yarkov, V. Yu. ^{[3
]}

Volegov, A. S. ^{[1
]}

机构：

[1] Ural Fed Univ, Inst Nat Sci & Math, Ekaterinburg 620026, Russia

[2] OOO POZ Progress, Verkhnyaya Pyshma 624092, Russia

[3] AO Inst Reactor Mat, Zarechnyi 624250, Sverdlovsk obla, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2022年 / 123卷 / 11期

基金：

俄罗斯基础研究基金会;

关键词：

permanent magnets; Nd-Fe-B magnets; magnetization reversal processes; coercive force mechanisms; Kondorsky model; domain-wall movement delay; pinning; angular dependence of coercive force; ANGULAR-DEPENDENCE; HYSTERESIS PROPERTIES; (ND; DY)-FE-B MAGNETS; THERMAL-STABILITY; GRAIN-BOUNDARY; COERCIVITY; MICROSTRUCTURE; NUCLEATION;

D O I：

10.1134/S0031918X22601238

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A modified Kondorsky model of the magnetization reversal processes based on the mechanism of domain-wall movement delay is described, which takes the magnetostatic interaction between grains into account. The angular dependences of the coercive force in Nd-Fe-B permanent magnets are estimated based on the Stoner-Wohlfarth and Kondorsky models, as well as on a modified Kondorsky model. The results demonstrate that the proposed model better describes the angular dependences of the coercive force in the magnets under study.

引用

页码：1054 / 1060

页数：7

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