摘要 |
PROBLEM TO BE SOLVED: To provide a powder of soft magnetic metal, which can be heat-treated at high temperature, shows low hysteresis loss and high electrical resistance, and to provide a method for manufacturing the same. SOLUTION: The powder 1 of the soft magnetic metal has a composition expressed by the formula of Fe<SB>100-a-b</SB>Si<SB>a</SB>Cr<SB>b</SB>(0≤a≤8 and 0<b≤3, by wt.%), and has a higher Cr concentration 3 on the surface of the powder than that in the center part of the powder. It is preferable that all or one part of the surface of the powder of the soft magnetic metal is coated with an insulative oxide 2, and that an oxygen content in the whole powder of the soft magnetic metal including the insulative oxide is 10 mass% or less. COPYRIGHT: (C)2008,JPO&INPIT
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