Patent ID: 6758918
Filing Date: 2004-07-06
Classification: B22F,C01B,C01P,C04B,C22C,H01F

Abstract:
A flaky, isotropic SmFeN powdery magnet material prepared by roll-quenching a molten alloy and nitriding the alloy powder thus obtained to form a magnet alloy; the magnet alloy having an alloy composition of the formula, by atomic %:SmxFe100-x-y-vM1yNv wherein M1 is at least one member selected from the group consisting of Hf and Zr; 7&lE;x&lE;12, and 0.1&lE;y&lE;1.5, and 0.5&lE;v&lE;20; a TbCu7 that the crystal structure, and flakes with a thickness of 10-40 &mgr;m.