Influence of heat treatment on microstructures and magnetic properties of Fe-based soft magnetic composites prepared by co-precipitation method
Journal of Magnetism and Magnetic Materials(2019)
摘要
•Fe particles were coated with a uniform (NiZn)Fe2O4 via a co-precipitation method.•With the increase of heat treatment temperature, the O element in the boundary gradually penetrated into the Fe matrix.•With the increase of heat treatment temperature, the internal stress release of the sample is more complete.•The 450 °C argon-annealed sample had the optimum magnetic properties (u = 55.8, Pcv = 12.2 kw/m3, Hc = 22.6 A/m).
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关键词
Soft magnetic composites,Ni-Zn ferrite,Co-precipitation,Heat treatment,Microstructure,Magnetic properties
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