| 摘要 |
PURPOSE:To get high magnetic property, especially, high coercive force by having R6Fe13Cu phase being a tetragonal antiferromagnetic compound as the constituent phase, with R, Fe, B, and Cu as the basic ingredients of a material. CONSTITUTION:A rare earth permanent magnet has R (but, a rare earth element having Pr and Nd for its main ingredients), Fe, B, and Cu as the basic ingredients of the material. The alloy powder consisting of these basic ingredients is heat-treated in the temperature range not less than 400 deg.C and not more than the peritectic temperature of R6Fe13Cu phase after molding and sintering. Hereby, it can have R6Fe13Cu phase being a tetragonal antiferromagnetic compound as the constituent phase. Accordingly, favorable coercive force can be gotten stably. |
