Patent ID: 6319336
Filing Date: 2001-11-20
Classification: B22F,C22C,H01F

Abstract:
A permanent magnet alloy having an improved heat resistance comprising, in terms of percent by atom ( at. %), a composition of:0.1 to 15 at. % C,0.5 to 15 at. % B,provided that C and B in total account for 2 to 30 at. %;40 at. % or less Co, exclusive of zero percent,0.5 to 5 at. % in total of Dy and Tb,8 to 20 at. % R, where R represents at least one element selected from the group consisting of Nd, Pr, Ce, La, Y, Gd, Ho, Er, and Tm;with the balance being Fe and unavoidable incidental impurities.