Title:
Fe-BASED AMORPHOUS ALLOY POWDER, DUST CORE USING THE Fe-BASED AMORPHOUS ALLOY POWDER, AND COIL-EMBEDDED DUST CORE
Document Type and Number:
WIPO Patent Application WO/2012/098817
Kind Code:
A1
Abstract:
Provided is an Fe-based amorphous alloy powder for dust cores and coil-embedded dust cores, which has a composition formula represented by (Fe100-a-b-c-x-y-z-tNiaSnbCrcPxCyBzSit)100-αMα, wherein 0 at% ≤ a ≤ 10 at%, 0 at% ≤ b ≤ 3 at%, 0 at% ≤ c ≤ 6 at%, 6.8 at% ≤ x ≤ 10.8 at%, 2.2 at% ≤ y ≤ 9.8 at%, 0 at% ≤ z ≤ 4.2 at%, 0 at% ≤ t ≤ 3.9 at%, metal element M represents at least one element selected from among Ti, Al, Mn, Zr, Hf, V, Nb, Ta, Mo and W, and the addition amount (α) of the metal element M satisfies 0.04 wt% ≤ α ≤ 0.6 wt%. The Fe-based amorphous alloy powder has a lower Tg, while exhibiting excellent corrosion resistance and high magnetic characteristics.
Inventors:
TSUCHIYA KEIKO (JP)
OKAMOTO JUN (JP)
KOSHIBA HISATO (JP)
OKAMOTO JUN (JP)
KOSHIBA HISATO (JP)
Application Number:
PCT/JP2011/080364
Publication Date:
July 26, 2012
Filing Date:
December 28, 2011
Export Citation:
Assignee:
ALPS GREEN DEVICES CO LTD (JP)
TSUCHIYA KEIKO (JP)
OKAMOTO JUN (JP)
KOSHIBA HISATO (JP)
TSUCHIYA KEIKO (JP)
OKAMOTO JUN (JP)
KOSHIBA HISATO (JP)
International Classes:
C22C45/02; B22F1/08; B22F3/00; H01F1/153; H01F1/20; H01F1/26; H01F27/255
Foreign References:
| JP2004156134A | 2004-06-03 | |||
| JP2009299108A | 2009-12-24 | |||
| JP2009174034A | 2009-08-06 | |||
| JP2009054615A | 2009-03-12 | |||
| JP2008169466A | 2008-07-24 | |||
| JP2007231415A | 2007-09-13 | |||
| JP2008520832A | 2008-06-19 | |||
| JP2009174034A | 2009-08-06 | |||
| JP2005307291A | 2005-11-04 | |||
| JP2009054615A | 2009-03-12 | |||
| JP2009293099A | 2009-12-17 | |||
| JPS63117406A | 1988-05-21 | |||
| US20070258842A1 | 2007-11-08 |
Other References:
See also references of EP 2666881A4
Attorney, Agent or Firm:
NOZAKI, Teruo et al. (JP)
Teruo Nozaki (JP)
Teruo Nozaki (JP)
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Claims: