PERMANENT MAGNET MATERIAL OF HIGH COERCIVE-FORCE PR-CO ALLOY AND PERMANENT MAGNET MATERIAL OF THIN-FILM AND MANUFACTURE THEREOF

摘要

PURPOSE: To provide small strong permanent magnet materials having extremely large coercive force regarding the permanent magnet materials of an alloy, which 15 obtained by pressure-molding or injection-molding a material mainly comprising Pr or Co and consisting of unavoidable impurities and powder containing one kind or two kinds or more of Fe, Cu, W, Ti, Ce and Sm as by-components in addition to the material and heating and sintering the molded form, and a thin-film and the manufacture of the permanent magnet materials. ;CONSTITUTION: The permanent magnet material of a high coercive force Pr-Co alloy consisting of an alloy, which contains 19.5-30 atomic % as a main component and the remainder of which is composed of Co and unavoidable impurities, and one kind or two kinds or more of 0. 1-atomic % Fe, Cu and W and 0.1-5 atomic % Ti, Ce and Sm as by-components in addition to the alloy and manufacture thereof and a Pr-Co thin-film magnet material and manufacture thereof are provided.;COPYRIGHT: (C)1995,JPO