The magnetic anisotropy bond magnet, are used for that the magnetic particle and its production manner

摘要

A magnetically anisotropic bond permanent magnet consists essentially of 15 to 40 vol-% of a resin binder, the balance being formed of R-TM-B-M system alloy powder. In this alloy system, R is at least one of the rear-earth elements including Y; TM is Te, which may be partly substituted by CO; and M is at least one of the elements Si, Al, Nb, Zr, Hf, Mo, P and C as an additive. B is boron. The alloy powder has an average crystal size of 0.01 to 0.5 mu m and is magnetically anisotropic. The easy-magnetizing axes of the alloy powder are directed to a given direction. Such a permanent magnet has excellent thermal stability and magnetizing properties.