Preparation of atomized FeSi alloy powder and study on magnetic properties of magnetic core
FeSi alloy is a soft magnetic material with excellent performance,with high saturation magnetization strength,lower magnetic loss,low cost and flexible magnetic core design.widely used in switching power supplies,electric vehicles and photovoltaic industry.FeSi alloy powder was prepared by aerosol method,which has the characteristics of high sphericity,high loose density and low oxygen content.FeSi alloy powder was prepared by aerosol method,and the particle size distribution,morphology and physical and chemical properties of FeSi alloy powder were detected and analyzed by laser particle size analyzer,scanning electron microscope(SEM),inductively coupled plasma emission spectrometer(ICP),ONH-3000 nitro meter and metal powder loose density meter.It was found that the FeSi soft magnetic alloy powder has the characteristics of high granules,high loosening density,low oxygen content,and relatively uniform particle size distribution.FeSi soft magnetic alloy powder was prepared into FeSi magnetic powder core by inorganic coating method.The magnetic properties and magnetic losses of FeSi magnetic powder core were studied using MATS-2010SD/K100 soft magnetic DC measuring device and MAZ513080SA/1M soft magnetic material dynamic measuring device.The results showed that under A magnetic field of 5000 A/m,Saturation magnetization is 0.6T;at 50 kHz,the magnetic loss reaches 110 mW/cm3,which has good soft magnetic performance.
FeSi alloy powdergas atomizationmagnetic powder coresaturation magnetizationmagnetic loss
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