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US 9,793,035 B2Granted
Soft magnetic metal powder and soft magnetic metal powder core using the same
AssigneeTDK Corporation
InventorsYu Sakurai, Tomofumi Kuroda, Hideyuki Itoh
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Abstract
The present invention relates to a soft magnetic metal powder which has Fe as the main component and contains Si and B, wherein, the content of Si in the soft magnetic metal powder is 1 to 15 mass %, the content of boron inside the metal particle of the soft magnetic metal powder is 10 to 150 ppm, and the particle has a film of boron nitride on the surface. The present invention also relates to a soft magnetic metal powder core prepared by using the soft magnetic metal powder.
Claims7
A soft magnetic metal powder, comprising metal particles that include Fe, as a main component, Si, and B, wherein,
- the content of Si in the soft magnetic metal powder is 1 to 15 mass %,
- the content of B inside the metal particles of the soft magnetic metal powder is 22 to 150 ppm, and
- a surface of the metal particles comprises a film of boron nitride.
Dependencies are inferred from the claim text.