Permanent magnet

Details Permanent magnet Permanent magnet

H - Electricity

01

F

148/5, 75/7.1

H01F 1/04 (2006.01) H01F 1/053 (2006.01) H01F 1/08 (2006.01)

Patent

CA 1279777

PERMANENT MAGNET ABSTRACT 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.

436892

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