GRAIN BOUNDARY DIFFUSION PROCESS JIG, AND CONTAINER FOR GRAIN BOUNDARY DIFFUSION PROCESS JIG

摘要

The present invention addresses the problem of providing a grain boundary diffusion treatment jig that does not easily become fused with a base material S an R L 2 Fe 14 B system magnet having a surface coated with an adhesion material P containing an element R H (which is at least one element selected from the group of Dy, Tb and Ho) when subjected to a heating process for grain boundary diffusion treatment. The grain boundary diffusion treatment jig 10 includes a plate-shaped base 11 having a surface with a number of projections 12 arranged so that the tips 121 of the projections 12 lie in one plane, and the surfaces of the tips 121 are made of a ceramic material. Since the contact area between the adhesion material applied to the surface of the base material and the grain boundary diffusion treatment jig is reduced by the use of the projections 12 for supporting the base material S, and since a ceramic material that does not easily react with the adhesion material P is used, the fusion of the base material S and the grain boundary diffusion treatment jig 10 is less likely to occur in the aforementioned heating process.