Title:
軟磁性粉末、圧粉磁心、磁性素子および電子機器
Document Type and Number:
Japanese Patent JP6593146
Kind Code:
B2
Abstract:
A soft magnetic powder of the invention has a composition represented by Fe 100-a-b-c-d-e-f Cu a Si b B c M d M' e X f 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 in at% 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.
Inventors:
Nako Kudo
Toshiki Akazawa
Yu Maeda
Toshiki Akazawa
Yu Maeda
Application Number:
JP2015244796A
Publication Date:
October 23, 2019
Filing Date:
December 16, 2015
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
C22C38/00; B22F1/054; B22F1/08; B22F1/10; B22F3/00; H01F1/20; H01F1/22
Domestic Patent References:
| JP2012136770A | ||||
| JP2010242216A | ||||
| JP2125801A | ||||
| JP63304603A | ||||
| JP2000150256A | ||||
| JP2017095773A |
Attorney, Agent or Firm:
Tatsuya Masuda
Kazuo Asahi
Kazuo Asahi