Title:
METALLIC GLASS POWDER MAGNETIC CORE HAVING HIGH DENSITY AND HIGH SPECIFIC RESISANCE, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2021/157352
Kind Code:
A1
Abstract:
A metallic glass powder magnetic core which comprises a plurality of grains each comprising a soft magnetic metallic glass alloy and 1% by mass or less of an insulation film formed at each of grain boundaries among the plurality of grains, has a density ratio of 0.90 or more, an iron loss of 200 kW/m3 (0.1 T/50 kHz) or less in a magnetic path cross section of 10 mm, and has specific resistance of 1×105 μΩm or more.
Inventors:
KATO KENICHI (JP)
FUKUDA RYOSUKE (JP)
FUKUDA RYOSUKE (JP)
Application Number:
PCT/JP2021/001773
Publication Date:
August 12, 2021
Filing Date:
January 20, 2021
Export Citation:
Assignee:
DIAMET CORP (JP)
International Classes:
B22F1/08; B22F1/102; B22F3/00; B22F9/02; B22F9/08; C22C45/02; H01F1/153; H01F27/255; H01F41/02
Foreign References:
| JP2007231415A | 2007-09-13 | |||
| JP2004204296A | 2004-07-22 | |||
| JP2011018822A | 2011-01-27 | |||
| JP2008004864A | 2008-01-10 | |||
| JP2002184616A | 2002-06-28 |
Other References:
CHIN HORYU ET AL.: "Forming ability and crystallization behaviour of Fe-Mo-Ga-P-C-B-Si glass alloy showing excellent soft magnetic properties", SUMMARIES OF YEAR 2005 ANNUAL FALL (137TH) MEETING OF THE JAPAN INSTITUTE OF METALS AND MATERIALS, 28 September 2005 (2005-09-28), pages 273, ISSN: 1342-5730
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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