A jig for grain boundary diffusion treatment and a container for the grain boundary diffusion treatment jig

摘要

In the present invention, by heating for grain boundary diffusion treatment, the element R^H(At least one of Dy, Tb and Ho) attached to the surface of R^L₂Fe₁₄It is difficult to fuse the base material S of the B base magnet. The jig for grain boundary diffusion treatment 10 is arranged on the surface of a plate-like base 11 such that a large number of protrusions 12 made of ceramics on the surface of the tip 121 are located within one plane. By placing the base material S on the protrusions 12, it is possible to reduce the contact area between the attachment adhered to the surface of the base material and the jig for grain boundary diffusion treatment, and to use ceramics hard to react with the deposit P , It is possible to make it difficult for fusion of the base material S and the grain boundary diffusion treatment jig 10 during heating.