Title:
POWDER CORE, COIL COMPONENT, AND METHOD FOR PRODUCING POWDER CORE
Document Type and Number:
WIPO Patent Application WO/2015/079856
Kind Code:
A1
Abstract:
This powder core is provided with a plurality of soft magnetic particles and an insulating layer interposed between the soft magnetic particles, wherein the soft magnetic particles comprise an Fe-Si-Al-based alloy, and have a greatest diameter/equivalent circle diameter in a cross section of the powder core of 1.0-1.3 inclusive, and the insulating layer comprises an oxide containing Si and O, and furthermore at least one element among the alkali elements and Mg. Alternatively, the powder core is provided with a plurality of soft magnetic particles and an insulating layer interposed between the soft magnetic particles, wherein the soft magnetic particles comprise an Fe-Si-Al-based alloy and have an oxygen content of no greater than 500 ppm, and the insulating layer comprises an oxide containing Si and O, and furthermore at least one element among the alkali elements and Mg.
Inventors:
ISHIMINE TOMOYUKI (JP)
Application Number:
PCT/JP2014/078712
Publication Date:
June 04, 2015
Filing Date:
October 29, 2014
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO ELECTRIC SINTERED ALY (JP)
SUMITOMO ELECTRIC SINTERED ALY (JP)
International Classes:
H01F1/24; B22F1/10; B22F1/16; B22F3/00; H01F1/147; H01F27/255; H01F41/02
Foreign References:
| JPS62250607A | 1987-10-31 | |||
| JP2012107330A | 2012-06-07 | |||
| JP2006302958A | 2006-11-02 | |||
| JP2012009825A | 2012-01-12 |
Attorney, Agent or Firm:
NAKATA, Motomi et al. (JP)
Nakada Motoki (JP)
Nakada Motoki (JP)
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