POWDERS FOR RARE EARTH MAGNETS, RARE EARTH MAGNETS AND METHODS FOR MANUFACTURING THE SAME

摘要

A powder consists essentially by weight, of 28.00 = R = 32.00%, where R is at least one rare earth element including Y and the sum of Dy + Tb > 0.5, 0.50 = B = 2.00%, 0.50 = Co = 3.50%, 0.050 = M = 0.5%, where M is one or more of the elements Ga, Cu and Al, 0.25 wt%< O = 0.5%, 0.15% or less of C, balance Fe.