COBALT-RARE EARTH METAL PERMANENT MAGNETIC MATERIAL

摘要

ABSTRACT OF THE DISCLOSURETitle of the InventionCOBALT-RARE EARTH METALPERMANENT MAGNETIC MATERIALA permanent magnetic material for use under variabletemperatures such as in electric motors, which has thecomposition (MM1-xNdx)1-ySmyCo5, in which 0.38 ? x ? 0.65,0 ? y ? 0.25, and MM is a mischmetal of the compositionCe .alpha. La .beta. Pr ? wherein the parameters .alpha. , .beta., ? ,satisfy the conditions0.50 .alpha. 0.700.22 .beta. 0.450.00 ? 0.06, and .alpha. + .beta. + ? = 1.