Soft magnetic composites based on the Fe elemental, binary and ternary alloy systems fabricated by surface nitridation

被引：34

作者：

Zhao, Jing ^{[1
]}

Wu, Chen ^{[1
]}

Luo, Dahao ^{[1
]}

Yan, Mi ^{[1
]}

机构：

[1] Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Key Lab Novel Mat Informat Technol Zhejiang Prov, Hangzhou 310027, Zhejiang, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 481卷

基金：

中国国家自然科学基金;

关键词：

Nitride coating; Magnetic performance; Electrical resistivity; Effective permeability; Core loss; PROCESSING PARAMETERS; COATINGS; AL2O3; TEMPERATURE; EVOLUTION; NITROGEN; MATRIX; XPS;

D O I：

10.1016/j.jmmm.2019.01.070

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Surface nitridation has been used to fabricate the insulation coatings of the Fe, FeSi, FeSiAl and FeSiCr soft magnetic composites (SMCs). Effects of the nitridation conditions on the magnetic performance of the SMCs have been investigated. Detailed growth mechanism and models of the coating layers for different alloy systems have been established based on combined thermodynamic and kinetics analysis. For Fe and FeSi SMCs, nitride coatings containing alpha-Fe(N) forms, while coexistenc of alpha-Fe(N) and Fe4N is obtained for the FeSiAl SMCs. For the FeSiCr system, the nitride coating is composed of alpha-Fe(N) and CrN with relatively large electrical resistivity, giving rise to enhanced magnetic performance compared with that of the SMCs prepared via traditional phosphoric acid passivation.

引用

页码：140 / 149

页数：10

共 48 条

[1] OXIDATION OF IRON SILICON ALLOYS [J].