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
收藏
页码：1266 / 1278
页数：13
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