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    • 6. 发明申请
    • METHOD FOR PRODUCING MAGNETIC MATERIAL
    • 生产磁性材料的方法
    • US20160086700A1
    • 2016-03-24
    • US14843169
    • 2015-09-02
    • Kabushiki Kaisha Toshiba
    • Tomohiro SUETSUNAKoichi HARADATomoko EGUCHIToshihide TAKAHASHISeiichi SUENAGA
    • H01F1/01
    • H01F1/0063
    • Provided is a method for producing a magnetic material, the method including preparing a mixed phase material including a first magnetic metal phase formed from a magnetic metal and a second phase containing any one of oxygen (O), nitrogen (N) or carbon (C) and a non-magnetic metal, conducting a first heat treatment to the mixed phase material at a temperature of from 50° C. to 800° C., forming nanoparticle aggregates including a plurality of magnetic metal nanoparticles formed from the first magnetic metal phase and the second phase, and conducting a second heat treatment to the nanoparticle aggregates at a temperature of from 50° C. to 800° C. The nanoparticle aggregates are formed by decreasing an average particle size and a particle size distribution variation of the first magnetic metal phase after the first heat treatment.
    • 提供一种制造磁性材料的方法,该方法包括制备包括由磁性金属形成的第一磁性金属相和含有氧(O),氮(N)或碳(C)中任一种的第二相的混合相材料 )和非磁性金属,在50℃至800℃的温度下对混合相材料进行第一热处理,形成纳米颗粒聚集体,其包括由第一磁性金属相形成的多个磁性金属纳米颗粒 和第二相,并且在50℃至800℃的温度下对纳米颗粒聚集体进行第二次热处理。纳米颗粒聚集体通过降低第一磁性体的平均粒径和粒度分布变化而形成 金属相经过第一次热处理。