Publication number: 20170178776
Abstract: A soft magnetic powder of the invention has a composition represented by Fe100-a-b-c-d-e-fCuaSibBcMdM?eXf (at %) [wherein M is Nb, W, Ta, Zr, Hf, Ti, or Mo, M? is V, Cr, Mn, Al, a platinum group element, Sc, Y, Au, Zn, Sn, or Re, X is C, P, Ge, Ga, Sb, In, Be, or As, and a, b, c, d, e, and f are numbers that satisfy the following formulae: 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, and 0?f?10], wherein a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less is contained in an amount of 40 vol % or more, and the difference in the coercive force of the powder after classification satisfies predetermined conditions.
Type:
Application
Filed:
December 6, 2016
Publication date:
June 22, 2017
Inventors:
Yasuko KUDO, Toshiki AKAZAWA, Yu MAEDA