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Title:
MAGNETIC CORE, METHOD OF MANUFACTURING SAME, AND COIL COMPONENT
Document Type and Number:
WIPO Patent Application WO/2019/168159
Kind Code:
A1
Abstract:
[Problem] To provide a magnetic core and the like having a stable soft magnetic property. [Solution] A magnetic core comprising a plurality of soft magnetic layers which are laminated, wherein a crack is formed in the soft magnetic layers. The soft magnetic layers comprise Fe as a principal component. The soft magnetic layers comprise a composition formula (Fe(1-(α+β))X1αX2β)(1-(a+b+c+d+e+f))MaBbPcSidCeSf, wherein: X1 is one or more selected from the group consisting of Co and Ni, X2 is one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, and O and rare-earth elements, M is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Mo, V, and W; and a to f and α and β are in predetermined ranges. A structure comprising a nanoheterostructure or an Fe-group nanocrystal is observed in the soft magnetic layers.

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Inventors:
Nakahata, Isao (2-5-1 Nihonbashi, Chuo-k, Tokyo 28, 〒1036128, JP)
YOSHIDOME, Kazuhiro (2-5-1 Nihonbashi, Chuo-k, Tokyo 28, 〒1036128, JP)
MATSUMOTO, Hiroyuki (2-5-1 Nihonbashi, Chuo-k, Tokyo 28, 〒1036128, JP)
HASEGAWA, Akito (2-5-1 Nihonbashi, Chuo-k, Tokyo 28, 〒1036128, JP)
Application Number:
JP2019/008126
Publication Date:
September 06, 2019
Filing Date:
March 01, 2019
Export Citation:
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Assignee:
TDK CORPORATION (2-5-1, Nihonbashi Chuo-k, Tokyo 28, 〒1036128, JP)
International Classes:
H01F27/25; H01F17/06; H01F41/02
Foreign References:
JPH05335154A1993-12-17
JP2008112830A2008-05-15
JP2011134959A2011-07-07
JP2015505166A2015-02-16
JP2018049921A2018-03-29
Attorney, Agent or Firm:
MAEDA & SUZUKI (8F Iwanami Shoten Hitotsubashi Bldg, 5-5 Hitotsubashi 2-chome, Chiyoda-k, Tokyo 03, 〒1010003, JP)
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