Cerium misch-metal/cobalt magnets

Details Cerium misch-metal/cobalt magnets Cerium misch-metal/cobalt magnets

C - Chemistry, Metallurgy

22

C

75/2, 148/5

C22C 19/07 (2006.01) C22C 1/04 (2006.01) C22F 1/10 (2006.01) H01F 1/055 (2006.01)

Patent

CA 1047281

ABSTRACT OF THE DISCLOSURE A permanent magnetic material, predominantly containing cerium misch-metal (CeMM) and cobalt, characterized by the composition: (CeMM1-xREx)1-ySmyCo5 ? 0.2 wherein 0.05 < x < 0.5; 0 < y < 0.25, wherein cerium misch-metal approximately possesses the composition Ce.alpha. La.beta. Nd.gamma. Pr.delta., where 0.45 < .alpha. < 0.55 0.20 < .beta. < 0.40 0.05 < .gamma. < 0.15 0.00 < .delta. < 0.05 and .alpha. + .beta. + .gamma. + .delta. = 1, and wherein RE consists of the ailoy NdAPrB (Ce, La, Sm)C wherein A is 0.75, B is 0.22, C is less than 0.03 and A+B+C=1.

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