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    • 6. 发明专利
    • Soft magnetic composite material, method for producing the same, and electromagnetic circuit component
    • 软磁性复合材料及其制造方法和电磁电路部件
    • JP2010236020A
    • 2010-10-21
    • JP2009085348
    • 2009-03-31
    • Diamet:KkMitsubishi Materials Corp三菱マテリアル株式会社株式会社ダイヤメット
    • TANAKA HIROSHIIGARASHI KAZUNORI
    • B22F3/00B22F1/00B22F1/02C22C38/00H01F1/20H01F1/22
    • PROBLEM TO BE SOLVED: To provide a soft magnetic composite material which has all properties of high magnetic permeability, low coercive force and low iron loss that an Fe-3Si alloy particle phase or an Fe-Si-Al alloy particle phase has, while keeping high saturation magnetic flux density that a pure iron particle originally has, and to provide a method for producing the soft magnetic composite material. SOLUTION: The soft magnetic composite material is produced by compacting the mixture of the Fe-3Si alloy particle, the Fe-Si-Al alloy particle and a pure iron particle and firing the compacted mixture and has a plurality of the Fe-3Si alloy particle phases, a plurality of the Fe-Si-Al alloy particle phases and a plurality of pure iron particle phases each of which is present on the grain boundary surrounded by at least three of Fe-3Si alloy particle phases or Fe-Si-Al alloy particle phases. The content of the pure iron particle phases is 3-10 mass% to the whole mass of the Fe-3Si alloy particle phase, the Fe-Si-Al alloy particle phase and the pure iron particle phase. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供Fe-3Si合金粒子相或Fe-Si-Al合金粒子相具有高磁导率,低矫顽力和低铁损的所有特性的软磁性复合材料 同时保持纯铁颗粒最初具有的高饱和磁通密度,并提供一种生产软磁性复合材料的方法。 解决方案:软磁性复合材料通过压制Fe-3Si合金颗粒,Fe-Si-Al合金颗粒和纯铁颗粒的混合物来制造,并烧结压实的混合物,并且具有多个Fe- 3Si合金粒子相,多个Fe-Si-Al合金粒子相和多个纯铁粒子相,其中存在于由Fe-3Si合金粒子相或Fe-Si -Al合金颗粒相。 纯铁粒子相的含量相对于Fe-3Si合金粒子相,Fe-Si-Al合金粒子相和纯铁粒子相的总质量为3-10质量%。 版权所有(C)2011,JPO&INPIT