Amorphous Alloy Soft Magnetic Powder, Dust Core, Magnetic Element, And Electronic Device

Abstract

An amorphous alloy soft magnetic powder includes: impurities; and a composition represented by a composition formula Fea(Si1-xBx)bCcSd represented by an atomic ratio, where a is 100−b−c−d. In addition, b, c, d, and x are 16.0≤b≤22.0, 0<c≤4.0, 0.001≤d≤0.080, and 0.5≤x≤0.9. In a volume-based cumulative particle size distribution obtained using a laser diffraction type particle size distribution measurement device, when D50 is a particle diameter at which a cumulative frequency is 50% from a small diameter side, the particle diameter D50 is 22.0 μm or more and 32.0 μm or less, hollow particles are contained, and a number ratio of the hollow particles is 3% or more and 22% or less.

Dependencies are inferred from the claim text.