Abstract: A method for manufacturing a metal-impregnated ceramic fired body includes: a preparation step 1 for a first metal-impregnated ceramic fired body, including impregnating a ceramic formed body with a metal by heating to a melting point of the metal or higher; and a preparation step 2 for a second metal-impregnated ceramic fired body having a lower metal impregnation amount than the first metal-impregnated ceramic fired body, including removing a part of the metal impregnated in the first metal-impregnated ceramic fired body by reheating the first metal-impregnated ceramic fired body to the melting point of the metal or higher.

Abstract: A method for manufacturing a metal-impregnated ceramic fired body includes: a step 1 of contacting a ceramic formed body with a metal in a form of granules, a step 2 of heating the metal at or above a melting point thereof in a state where the metal in the form of granules is in contact with the ceramic formed body so that the ceramic formed body is fired while the metal is impregnated into the ceramic formed body, thereby obtaining a metal-impregnated ceramic fired body.

Abstract: A firing jig for impregnating a metal into a ceramic formed body including a first mounting surface for mounting the ceramic formed body directly, or via the metal in a form of granules, or via a porous support; and a second mounting surface adjacent to the first mounting surface and for placing the metal in the form of granules, wherein the second mounting surface includes a slope that slopes downward toward the first mounting surface.

Abstract: Provided is a method of manufacturing a Si-SiC-based composite structure capable of manufacturing a Si-SiC-based composite structure having a desired shape while suppressing the deformation of a molded body. The method of manufacturing a Si-SiC-based composite structure includes a step of impregnating a molten metal containing Si into a molded body containing SiC by heating a supply body containing Si under a state in which the molded body is in contact with a deformation suppressing member configured to suppress deformation of the molded body and in which the supply body is in contact with the molded body.

Abstract: Provided is a method of manufacturing a Si—SiC-based composite structure capable of improving the manufacturing efficiency of the Si—SiC-based composite structure. The method of manufacturing a Si—SiC-based composite structure includes a step of impregnating a molten metal containing Si into a molded body containing SiC by heating a supply body containing Si under a state in which the supply body is in contact with the molded body, wherein a contact portion of the supply body with the molded body is a part of a surface of the supply body facing the molded body.