A method of preparing a rare earth magnet

The method of the present invention can be improved by using the magnetic properties, particularly the heat treatment method of producing a rare earth magnet magnetic coercive force of the rare earth magnet system to be applied to the micro-neodymium (of Nd2Fe14B) magnets and neodymium film represented. A method of preparing a rare earth magnet comprising: (a) a rare earth magnet having a molten metal composition is quenched to form a hardened sheet nanocrystalline tissue; quenching said sintered sheet; sintered body obtained is subjected to alignment treatment; and a high enough to such that the grain boundary phase can diffuse or fluidized and simultaneously applying pressurized low enough to prevent grain coarsening thermal treatment at a temperature. (B) depositing a thick film on a substrate, high enough that the grain boundary phase can diffuse or fluidized and simultaneously applying pressure low enough to prevent grain coarsening annealing temperature to make it crystallized. Preferably, the composition is added to the rare-earth magnet element can be reduced in the grain boundary phase be fluidized or diffusion temperature.