Patent ID: 8394450

Claim:
A process for producing a magnet, comprising a first step in which a heavy rare earth compound containing Dy or Tb as a heavy rare earth element is adhered onto a sintered compact of a rare earth magnet, a second step in which the heavy rare earth compound-adhered sintered compact is subjected to heat treatment, wherein the heavy rare earth compound is an iron compound of said Dy or an iron compound of said Tb, wherein in the first step, a slurry of the heavy rare earth compound dispersed in a solvent is coated onto the sintered compact, and wherein the heavy rare earth compound is DyFe, TbFe, DyFeH, TbFeH, DyNdFe or DyNdFeH, and a Dy or Tb content in the heavy rare earth compound is from 60 wt % to 95 wt %.