Novel Functional Soft Magnetic CoFe2O4/Fe Composites: Preparation, Characterization, and Low Core Loss

被引：5

作者：

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

Wang, Xianzhong ^{[2
,3
]}

Ouyang, Fangping ^{[1
,4
]}

Liu, Rutie ^{[4
]}

Xiong, Xiang ^{[4
]}

机构：

[1] Cent South Univ, Sch Phys & Elect, Changsha 410012, Peoples R China

[2] Pingxiang Univ, Dept Mat & Chem Engn, Pingxiang 337055, Peoples R China

[3] Jiangxi Xinke Environm Protect Co Ltd, Pingxiang 337000, Peoples R China

[4] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China

来源：

MATERIALS | 2023年 / 16卷 / 10期

基金：

中国国家自然科学基金;

关键词：

soft magnetic composites; in situ oxidation; nano-CoFe2O4; layer; structural characterization; low core loss; PERFORMANCE; EVOLUTION; ZN;

D O I：

10.3390/ma16103665

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, composites CoFe2O4/Fe were successfully synthesized by in situ oxidation, and their composition, structure, and magnetic properties have been investigated. According to the analysis of X-ray photoelectron spectrometry measure results, the cobalt ferrite insulating layer was completely coated on the surface of Fe powder particles. The evolution of the insulating layer during the annealing process has been discussed, which is correlated to effects on the magnetic properties of the composites CoFe2O4/Fe. The amplitude permeability of the composites reached a maximum of 110, and their frequency stability reached 170 kHz with a relatively low core loss of 253.6 W/kg. Therefore, the composites CoFe2O4/Fe has potential application in the field of integrated inductance and high-frequency motor, which is conducive to energy conservation and carbon reduction.

引用

页数：14

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