| 摘要 |
PROBLEM TO BE SOLVED: To provide ferrite magnet powder, ferrite magnets, and applied products which are improved in magnetic properties at a low manufacturing cost and methods of manufacturing them. SOLUTION: Ferrite has a hexagonal M-type magnet plumbite structure in which a part of Sr, Ba, Pb, or Ca is substituted with La and at least an element which is selected from Y-containing rare earth elements and Bi, and spinel-structure ferrite and hexagonal W-type magnet plumbite ferrite are added when the above ferrite is micronized, and the micronized mixed powder is formed into a ferrite magnet. A small amount of Co, Ni, Mn, or Zn is added when ferrite having a hexagonal M-type magnet plumbite structure is micronized, so that the ferrite magnet formed of the micronized mixed magnet powder can be improved in magnetic properties. |
