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US 2024/0278318 A1Published application
Soft magnetic powder and method for manufacturing the same, coil component including soft magnetic powder, and method for manufacturing magnetic material including soft magnetic powder
AssigneeMurata Manufacturing Co., Ltd.
InventorYuya ISHIDA
Life of this patent
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Abstract
A soft magnetic powder including a core containing a soft magnetic metal material and an insulating film covering the surface of the core. The insulating film contains an insulating metal oxide and an iron component, and the iron component is embedded in the insulating film.
Claims7
A method for manufacturing a soft magnetic powder comprising:
- obtaining a slurry by mixing a core containing a soft magnetic metal material, an iron salt, a metal alkoxide, and at least one selected from the group consisting of a water-soluble polymer and a surfactant in a solvent;
- and
- obtaining a soft magnetic powder including the core and an insulating film covering the surface of the core by drying the slurry.
A method for manufacturing a magnetic material comprising:
- obtaining a formed article by forming a soft magnetic powder comprising a core containing a soft magnetic metal material, and an insulating film covering the surface of the core, wherein the insulating film contains an insulating metal oxide and an iron component, and the iron component includes an iron component embedded in the insulating film;
- and
- obtaining a magnetic material by heat-treating the formed article.
Dependencies are inferred from the claim text.