| 简介 |
PROBLEM TO BE SOLVED : To provide a hard magnetic material capable of exhibiting good uniaxial magnetic anisotropy without using any rare earth element or noble metal element.
SOLUTION : A hard magnetic material is based on a tetragonal FeCoV based alloy having a composition represented by the general formula (1) defined by (Fe1-xCox)1-y-zVyAz, where the tetragonal strain c/a of the tetragonal FeCoV based alloy is more than 1.02 and less than or equal to 1.3. (In general formula (1), x is a real number satisfying 0.4≤x≤0.7; y is a real number satisfying 0
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