Soft magnetic material powder and manufacturing method thereof, and magnetic core and manufacturing method thereof
AssigneeMurata Manufacturing Co., Ltd.
InventorYuya Ishida
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Abstract
A soft magnetic material powder includes soft magnetic material particles, the soft magnetic material particles each include a core formed from an Fe-based soft magnetic material and an insulating film covering the surface of the core, and the insulating film contains an inorganic oxide and a water soluble polymer. A magnetic core includes soft magnetic material particles and a binder bonding the soft magnetic material particles to each other, the soft magnetic material particles each include a core containing an Fe-based soft magnetic material and an insulating film covering the surface of the core, and the insulating film contains an inorganic oxide and a water soluble polymer.
Claims8
A method for manufacturing a magnetic core, the method comprising:
- forming a soft magnetic material powder by forming an insulating film on surfaces of cores comprising a soft magnetic material by hydrolyzing a metal alkoxide,
- molding the soft magnetic material powder, and
- heat treating the molded soft magnetic powder to form the magnetic core.
Dependencies are inferred from the claim text.