Insulator-Coated Soft Magnetic Powder, Dust Core, Magnetic Element And Electronic Device
AssigneeSeiko Epson Corporation
InventorMomoko WAKABAYASHI
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Abstract
An insulator-coated soft magnetic powder includes: a soft magnetic powder; and an insulating coating configured to cover a surface of a particle of the soft magnetic powder. The soft magnetic powder has an average particle diameter of 2.0 μm or more and 40.0 μm or less, a specific surface area of the insulator-coated soft magnetic powder is 10% or more and 100% or less of a specific surface area of the soft magnetic powder alone, and when the insulator-coated soft magnetic powder is mixed with 2.0 mass % of an epoxy resin and molded under a pressure of 294.2 MPa (3.0 t/cm2), an obtained first molded body has a radial crushing strength of 10 MPa or more.
Claims11
An insulator-coated soft magnetic powder comprising:
- a soft magnetic powder;
- and
- an insulating coating configured to cover a surface of a particle of the soft magnetic powder, wherein
- the soft magnetic powder has an average particle diameter of 2.0 μm or more and 40.0 μm or less,
- a specific surface area of the insulator-coated soft magnetic powder is 10% or more and 100% or less of a specific surface area of the soft magnetic powder alone, and
- when the insulator-coated soft magnetic powder is mixed with 2.0 mass % of an epoxy resin and molded under a pressure of 294.2 MPa (3.0 t/cm2), an obtained first molded body has a radial crushing strength of 10 MPa or more.
Dependencies are inferred from the claim text.