| 摘要 |
PERMANENT MAGNET A magnetically anisotropic sintered permanent magnet of the FeBR system in which R is sum of R1 and R2 wherein: R1 is Dy, Tb, Gd, Ho, Er, Tm and/or Yb, and R2 comprises 80 at % or more of Nd and Pr in R2 and the balance of at least one of other rare earth elements exclusive of R1, said system comprising by atomic percent, 0.05 to 5 of R1, 12.5 to 20 % of R, 4 to 20 % of B, and the balance being Fe with impurities. Additional elements M(Ti, Zr, Hf, Cr, Mn, Ni, Ta, Ge, Sn, Sb, Bi, Mo, Nb, Al, V, W,) may be present. |
