| 摘要 |
PURPOSE:To provide a Ba ferrite powder with a reduced switching field distribution(SFD) value from that of conventional Co-Ti-substituted type Ba ferrite having a reduced coercive force. CONSTITUTION:Ba ferrite powder expressed by the general formula BaO.Fe12-x-yM1xM2yO18+(-x+y)/2 or BaO.Fe12-x-yM1xM2yLizO18+(-x+y+z)/2 (M1 is at least one bivalent element selected from Co, Ni, Zn, Cu, Mg and Mn; M2 is at least one tetravalent element selected from Ti, Zr, Sn, Nb and Si; (x) is 0.1-1.0; (y) is 0.2-2.0; (z) is 0.01-1.5 and (y-x) is 0.1-1.9). |
