Patent ID: 8500922

Claim:
A permanent magnet manufactured by steps of: pulverizing a magnet raw material containing 27 to 30 weight % Nd, 60 to 70 weight % Fe, and 1 to 2 weight % B into fine particles having a grain size of 3 μm or less; mixing the pulverized magnet raw material with a rust preventive oil in which a high-melting metal element-containing organic compound or a precursor of a high-melting ceramic is dissolved, thereby preparing a slurry; compression molding the slurry to form a molded body; and sintering the molded body, wherein the high-melting metal element-containing organic compound is an organic compound containing Ta, Mo, W or Nb, and the precursor of a high-melting ceramic is a precursor of BN or AlN, and wherein the high-melting metal element-containing organic compound or the precursor of a high-melting ceramic is uniformly adhered to magnet particles.