Title:
FE-BASED NANOCRYSTAL SOFT MAGNETIC ALLOY CORE
Document Type and Number:
WIPO Patent Application WO/2023/163005
Kind Code:
A1
Abstract:
An Fe-based nanocrystal soft magnetic alloy core which is obtained by winding a ribbon comprising an Fe-based nanocrystal soft magnetic alloy containing an amorphous phase and crystal grains, said Fe-based nanocrystal soft magnetic alloy core having a magnetostriction of less than 0 ppm at 20°C and having a composition represented by composition formula (I). (Fe1-x-ySixAly)100-a-b-cＭaM'bCuc (I) (in the composition formula: M is at least one element selected from the group consisting of Nb, W, Zr, Hf, Ti and Mo; M' is at least one element selected from the group consisting of B, C and P; a, b and c, all of which are in atom%, are 2.0 ≤ a ≤ 5.0, 3.0 < b < 10.0 and 0 < c 3.0; x and y are 0.170 ≤ x ≤ 0.320 and 0.010 ≤ y ≤ 0.045; and 15.5 < x × (100 - a - b - c))
Inventors:
MATSUOKA TAKASHI (JP)
KAMIYAMA NOZOMU (JP)
BITOH TERUO (JP)
KAMIYAMA NOZOMU (JP)
BITOH TERUO (JP)
Application Number:
PCT/JP2023/006338
Publication Date:
August 31, 2023
Filing Date:
February 22, 2023
Export Citation:
Assignee:
NIPPON CHEMICON (JP)
UNIV AKITA PREFECTURAL (JP)
UNIV AKITA PREFECTURAL (JP)
International Classes:
C21D6/00; H01F27/25; C22C38/00; C22C45/02; H01F1/153
Domestic Patent References:
| WO2022019335A1 | 2022-01-27 |
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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