Магнитотвердые материалы Mn-Al-C и Mn-Bi

Abstract

Studies of Mn54Al43C3 alloys have shown that the magnetic characteristics of the powder, the milled and heat-treated under optimal conditions, are essentially independent of the melting method and solidification mode. Obtained isotropic hard magnetic powder had a specific maximum magnetization of 80 G*cm3/g in the 12 kOe, remanence 53 G*cm3/g and a coercive force (Hc) of 3.8 kOe ~. On textured samples MnBi we obtained the value of Hc more than 15 kOe at room temperature. The degree of powders texture sharply increases by mechanical grinding.