SOFT MAGNETIC MATERIAL POWDER AND METHOD FOR PRODUCING SAME, AND MAGNETIC CORE AND METHOD FOR PRODUCING SAME

摘要

In the present invention, a soft magnetic material powder contains soft magnetic material particles each of which has a core comprising a Fe-based soft magnetic material and an insulating film that coats the surface of the core, and the insulating film contains an inorganic oxide and a water-soluble polymer. A magnetic core contains soft magnetic material particles and a binder that binds the soft magnetic material particles, and each of the soft magnetic material particles has a core comprising a Fe-based soft magnetic material and an insulating film which coats the surface of the core. The insulating film contains an inorganic oxide and a water-soluble polymer.