Permanent magnets

Details Permanent magnets Permanent magnets

H - Electricity

01

F

148/5, 75/7.1

H01F 1/04 (2006.01) H01F 1/053 (2006.01) H01F 1/057 (2006.01) H01F 1/08 (2006.01)

Patent

CA 1280012

PERMANENT MAGNETS ABSTRACT A magnetically anistropic sintered permanent magnet of the FeCoBR system (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 other rare earth elements exclusive of R1, said system consisting essentially of, by atomic percent, 0.05 to 5 % of R1, 12.5 to 20 % of R, 4 to 20 % of B up to 35 % of Co, and the balance being Fe. Additional elements M(Ti, Zr, Hf, Cr, Mn, Ni, Ta, Ge, Sn, Sb, Bi, Mo, Nb, Al, V, W) may be present.

436893

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