发明名称 FERROMAGNETIC PARTICLES AND PROCESS FOR PRODUCING THE SAME, ANISOTROPIC MAGNET AND BONDED MAGNET
摘要 The present invention relates to ferromagnetic particles comprising an Fe16N2 compound phase in an amount of not less than 70% as measured by Mössbauer spectrum, and at least one metal element X selected from the group consisting of Mn, Ni, Ti, Ga, Al, Ge, Zn, Pt and Si in such an amount that a molar ratio of the metal element X to Fe is 0.04 to 25%, the ferromagnetic particles having a BHmax value of not less than 5 MGOe, and a process for producing the ferromagnetic particles, and further relates to an anisotropic magnet or a bonded magnet which is obtained by magnetically orienting the ferromagnetic particles. The ferromagnetic particles according to the present invention can be produced in an industrial scale and are in the form of Fe16N2 particles comprising different kinds of metal elements having a large BHmax value.
申请公布号 US2013257573(A1) 申请公布日期 2013.10.03
申请号 US201113825584 申请日期 2011.09.22
申请人 TAKAHASHI MIGAKU;OGAWA TOMOYUKI;OGATA YASUNOBU;SAKUMA AKIMASA;KOBAYASHI NAOYA;POLWATTA GALLAGE CHAMMIKA RUWAN;KOHARA KAORI;TOHOKU UNIVERSITY;TODA KOGYO CORPORATION 发明人 TAKAHASHI MIGAKU;OGAWA TOMOYUKI;OGATA YASUNOBU;SAKUMA AKIMASA;KOBAYASHI NAOYA;POLWATTA GALLAGE CHAMMIKA RUWAN;KOHARA KAORI
分类号 H01F7/02;H01F41/02 主分类号 H01F7/02
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