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Updated: Jul 29, 2025

Fabrication of Spatially Confined Complex Oxides
Published on: July 1, 2013
Novel Functional Soft Magnetic CoFe2O4/Fe Composites: Preparation, Characterization, and Low Core Loss
Shigeng Li1,2,3, Xianzhong Wang2,3, Fangping Ouyang1,4
1School of Physics and Electronics, Central South University, Changsha 410012, China.
Abstract:
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.
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