Patent ID: 6706124
Filing Date: 2004-03-16
Classification: B82Y,H01F

Abstract:
An iron-based rare earth alloy nanocomposite magnet with a composition represented by the general formula: (Fe1-mTm)100-x-y-zQxRyMz, where T is at least one element selected from the group consisting of Co and Ni; Q is B, which may optionally be replaced by C in a maximum proportion of 25 at % of Q; R is at least one rare earth element excluding La and Ce; and M is at least one metal element selected from the group consisting of Ti, Zr and Hf and always includes Ti,wherein the mole fractions x, y, z and m meet the inequalities of: 10 at %6 at %0.1 at %0wherein said magnet comprises two or more ferromagnetic crystalline phases including hard and soft magnetic phases.