| 简介 |
PROBLEM TO BE SOLVED : To provide a ferrite sintered magnet having high magnet characteristics, and low calcination temperature dependency of magnet characteristics.
SOLUTION : The composition of main phase composing a ferrite sintered magnet is represented by Ca1-w-xRwAxFezMmO19. R is at least one kind of element selected from a group consisting of rare earth elements and Bi and contains at least La, A is at least one kind of element selected from Sr and Ba, and M is at least one kind of element selected from a group consisting of Co, Mn, Mg, Ni, Cu and Zn, and contains at least Co. The ferrite sintered magnet contains at least S, and the content of S is 100-1300 ppm.
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