Insulating material coated soft magnetic powder, powder magnetic core, magnetic element, electronic device, and moving body

Abstract

An insulating material coated soft magnetic powder, which is a powder body of an insulating material coated soft magnetic particle 1, includes: a core particle 2 including a base portion 2a that includes a soft magnetic material, and an oxide film 2b that is provided on a surface of the base portion 2a and contains an oxide of an element contained in the soft magnetic material, and an insulating film 3b in which a plurality of insulating nanoparticles 3a are attached to the core particle 2. A particle size of each nanoparticle 3a is 1/50,000 or more and 1/100 or less, relative to a particle size of the core particle 2, and after being subjected to a heat treatment in which the core particle 2 is heated at a sintering temperature or higher, a specific resistance after the heat treatment is 110% or more of a specific resistance before the heat treatment.

Dependencies are inferred from the claim text.