Fe-based alloy composition, soft magnetic material, magnetic members, electric/electronic component, and device
US10950374B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Jul 13, 2018 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Nov 16, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C2202/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is an Fe-based alloy composition capable of forming an amorphous soft magnetic material which contains no P and which has a glass transition temperature Tg, the Fe-based alloy composition having a composition represented by the formula (Fe1−aTa)100at %−(x+b+c+d)MxBbCcSid, where T is an arbitrary added element such as Ni and M is an arbitrary added element such as Cr, the formula satisfying the following conditions: 0≤a≤0.3, 11.0 at %≤b≤18.20 at %, 6.00 at %≤c≤17 at %, 0 at %≤d≤10 at %, and 0 at %≤x≤4 at %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.