Process for producing magnetic materials

Details Process for producing magnetic materials Process for producing magnetic materials

H - Electricity

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F

75/154, 148/5

H01F 1/08 (2006.01) C22C 1/04 (2006.01) C22C 33/02 (2006.01) H01F 1/057 (2006.01) H01F 41/02 (2006.01)

Patent

CA 1287509

PROCESS FOR PRODUCING MAGNETIC MATERIALS ABSTRACT Permanent magnetic materials of the Fe-B-R type are produced by: preparing an metallic powder having a mean particle size of 0.3 - 80 microns and a composition of by atomic percent, 8 - 30 % R (rare earth elements), 2 - 28 % B, and the balance Fe, compacting, sintering at a temperature of 900 - 1200 degrees C, and aging at a temperature ranging from 350 degrees C to the temperature for sintering. Co and additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf) may be present.

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