Performance improvement of Fe-6.5Si soft magnetic composites with hybrid phosphate-silica insulation coatings

被引：11

作者：

Wang Jian ^{[1
,2
,3
]}

Liu Xin ^{[1
,2
,3
]}

Li La ^{[1
,2
,3
]}

Mao Xin-hua ^{[1
,2
,3
]}

机构：

[1] Guangdong Acad Sci, Inst Mat & Proc, Guangzhou 510650, Peoples R China

[2] Guangdong Prov Key Lab Met Toughening Technol & A, Guangzhou 510650, Peoples R China

[3] Natl Engn Res Ctr Powder Met Titanium & Rare Met, Guangzhou 510650, Peoples R China

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY | 2021年 / 28卷 / 04期

关键词：

soft magnetic composites; phosphate-silica insulation coatings; heat resistance; magnetic performances; LOW CORE LOSS; HEAT-TREATMENT; FTIR SPECTRA; AL2O3; FE; GLASSES; RAMAN;

D O I：

10.1007/s11771-021-4694-x

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Fe-6.5Si soft magnetic composites (SMCs) with hybrid phosphate-silica insulation coatings have been designed to improve their comprehensive property via chemical coating combining sol-gel method in this work. The microstructure and magnetic performance of the Fe-6.5Si SMCs with hybrid phosphate-silica insulation coatings were investigated. The hybrid phosphate-silica coatings with high heat resistance and high withstand pressure, formed on the surface of the Fe-6.5Si ferromagnetic powders, were found stable in the composites. Compared with Fe-6.5Si SMCs coated by single phosphate or single silica, Fe-6.5Si SMCs with hybrid phosphate-silica show much higher permeability and lower core loss. The work provides a new way to optimize the magnetic performance of soft magnetic composites.

引用

页码：1266 / 1278

页数：13