Under the background of"Carbon emission peak,carbon neutrality"and great change of world energy,the field represented by photovoltaic,wind power and new energy are booming,which requires electronic components to withstand large current and high power.Magnetic core also named as soft magnetic composite material,which is fabricated by insulating the soft magnetic powder,and then molded and annealed.The magnetic core with high saturation magnetic induction,good stability,excellent DC bias performance has been widely used in photovoltaic,wind power and new energy equipment.Fe-based amorphous and nanocrystalline alloys have excellent soft magnetic properties and good economy,resulting bright prospects in the preparation of high-performance magnetic cores.The mechanical crushing and atomization are the commonly preparation methods for Fe-based amorphous/nanocrystalline alloy powders.Among them,the atomization method has the advantage of mass production,low pollution and cost.However,due to the low glass forming ability of Fe-based amorphous materials,it is difficult to mass prepare Fe-based amorphous/nanocrystalline powders with good soft magnetic properties by using atomizing method.Now,we reviewed the microstructure of amorphous/nanocrystalline materials,and the formation mechanism of metal powder preparation by atomization.Finally,we analyzed the research status of Fe-based amorphous/nanocrystalline atomized powderin order to provide ideas for the follow-up research and development.
Fe-based amorphous and nanocrystalline alloymagneticcoreatomizationpowders
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