Patent ID: 6979409

Claim:
A magnetic material having been prepared by a rapid solidification process, followed by a thermal annealing process, said magnetic material having the composition, in atomic percentage, of (R 1-a R′ a ) u Fe 100-u-v-w-x-y Co v M w T x B y wherein R is Nd, Pr, Didymium (a nature mixture of Nd and Pr at composition of Nd 0.75 Pr 0.25 ), or a combination thereof; R′ is La, Ce, Y, or a combination thereof; M is one or more of Zr, Nb, Ti, Cr, V, Mo, W, and Hf; and T is one or more of Al, Mn, Cu, and Si, wherein 0.01≦a≦0.8, 7≦u≦13, 0≦v≦20, 0.01≦w≦1, 0.1≦x≦5, and 4≦y≦12, and wherein the magnetic material exhibits a remanence (B r ) value of from about 6.5 kG to about 8.5 kG and an intrinsic coercivity (H ci ) value of from about 6.0 kOe to about 9.9 kOe.