| 摘要 |
PURPOSE:To suppress the increase of the quantity of oxygen and to treat nitrogen uniformly by a method wherein the Re-Fe-M parent alloy of the specific grain diameter is heat-treated in a nitriding atmosphere containing hydrogen gas. CONSTITUTION:The nitrogen magnetic material manufacturing method in which Re-Fe-M-N magnetic material containing oxygen of 500ppm or less is manufactured by heat-treating a parent alloy of crystal grain diameter or more of 5>=X>=25 and 0>=Y>=100 in atomic%, consisting of ReX(FeyM100-y)100-X (Re in the formula indicate at least a kind selected from rare earth elements containing yttrium, M consists of at least a kind selected from Co, Ti, V, Cr, Mn, Mo, W, Al, Si, C, B, Ni, Zr, Hf, Nb, Ta, Pd, Zn, Ga, Ge and Sn, in a hydrogen-containing nitrogen atmosphere. As a result, the influence of oxidization of the alloy can be alleviated, and the nitride magnetic material having excellent magnetic characteristics can be manufactured. |
