RFeB MAGNET MANUFACTURING METHOD, RFeB MAGNET, AND COATING MATERIAL FOR GRAIN BOUNDARY DIFFUSION TREATMENT

摘要

PROBLEM TO BE SOLVED: To provide an RFeB magnet having high coercive force.SOLUTION: The RFeB magnet has a main phase of RFeB containing rare earth elements R, Fe, and B. When the weight percentages of Tb and Dy are xand x, respectively, and the coercive force Hat room temperature is expressed in units of kOe, 0x≤0.5, 0≤x, and H≥20.8×x+2×x+14.7 are satisfied.SELECTED DRAWING: Figure 5