| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for stably manufacturing a ferrite particle having an uneven surface shape and yet having predetermined magnetic characteristics. <P>SOLUTION: The method includes a step of mixing a calcined material having an average particle diameter of ≥3 μm and containing an Fe component raw material and an M component raw material, or an Fe component and an M component each having an average particle diameter of ≥3 μm in which the components have been adjusted so as to form a ferrite particle having a composition represented by M<SB POS="POST">X</SB>Fe<SB POS="POST">3-X</SB>O<SB POS="POST">4</SB>(wherein M is at least one metal element selected from the group consisting of Mg, Mn, Ca, Ti, Cu, Zn, Sr and Ni; and 0≤X<1), with a medium liquid to thereby obtain a slurry, a step of spray drying the slurry to thereby obtain a granulated material, and a step of firing the granulated material to thereby obtain a fired material. <P>COPYRIGHT: (C)2013,JPO&INPIT |
