Core loss reduction for Fe-6.5wt%Si soft magnetic composites doped with Co element

被引：38

作者：

Wang, Jian ^{[1
,2
]}

Liu, Xin ^{[1
,2
]}

Lei, Chao ^{[1
,2
]}

Mao, Xinhua ^{[1
,2
]}

Liu, Danhua ^{[1
,2
]}

Fan, Xi'an ^{[3
,4
]}

Luo, Zigui ^{[3
,4
]}

Luo, Fan ^{[3
,4
]}

机构：

[1] Guangdong Inst Mat & Proc, Guangdong Prov Key Lab Met Toughening Technol & A, Guangzhou 510651, Peoples R China

[2] Natl Engn Res Ctr Powder Met Titanium & Rare Met, Guangzhou 510651, Peoples R China

[3] Wuhan Univ Sci & Technol, Sch Mat & Met, Wuhan 430081, Peoples R China

[4] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2020年 / 502卷

基金：

中国国家自然科学基金;

关键词：

Fe-6.5Si alloy; Soft magnetic composites; Doping Co; Core loss; Permeability; GRAIN-SIZE; MICROSTRUCTURE; PERMEABILITY; STRESS; ALLOYS; AL; TI;

D O I：

10.1016/j.jmmm.2020.166553

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Co element was doped in Fe-6.5Si alloy and the corresponding soft magnetic composites were fabricated successfully by conventional powder metallurgy techniques in this work. Saturation magnetization of Co-doped Fe6.5Si powder increases compared to powders without Co and the coercivity increases because of grain refinement. Co addition is helpful to improve the electrical resistivity of Fe-6.5Si alloy. After doping Co, it shows a significant trend towards a decrease for core loss of Fe-6.5Si SMCs by reducing both eddy current loss and hysteresis loss. The effective permeability of Co-doped Fe-6.5Si SMCs decreases monotony with the Co content changing from 0 to 7.0 wt%. Fe-6.5Si-1.0Co SMCs shows best magnetic performances (100 mT/50 KHz) with core loss of 781.03 mW/cm(3) and effective permeability of 103.36.

引用

页数：7

共 31 条

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