H - Electricity – 01 – F
Patent
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
Fujimura Setsuo
Matsuura Yutaka
Sagawa Masato
Togawa Norio
Yamamoto Hitoshi
Kirby Eades Gale Baker
Sumitomo Special Metals Co. Ltd.
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