Patent ID: 6280536
Filing Date: 2001-08-28
Classification: B82Y,H01F

Abstract:
A Fe based hard magnetic alloy comprising Fe as a major component and containing one or a plurality of elements R selected from rare earth elements, one or a plurality of elements M selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and Cu, and B, and represented by the following formula:Fe.sub.100-x-y-z-w-t R.sub.x M.sub.y T.sub.z B.sub.w L.sub.twherein T is one or a plurality of elements selected from Co and Ni, with x, y, z, w and t being in ranges of 2.ltoreq.x.ltoreq.15, 2.ltoreq.y.ltoreq.20, 0.ltoreq.z.ltoreq.20, and 10.ltoreq.w.ltoreq.30 and 0.ltoreq.t.ltoreq.5 in atomic percentages, respectively, and the element L is one or a plurality of elements selected from Ru, Rh, Pd, Os, Ir, Pt, Al, Si, Ge, Ga, Sn, C, and P,wherein a crystalline phase comprising one or two of .alpha.-Fe phase and Fe.sub.3 B phase and a crystalline phase comprising Nd.sub.2 Fe.sub.14 B are precipitated in said Fe based hard magnetic alloy.