Method for manufacturing a high temperature oxidation resistant carbonaceous molding

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A method for manufacturing a high temperature oxidation resistant carbonaceous molding comprising steps of : contacting a metal penetrant containing a metal powder forming carbide, a halide and a sintering inhibitor and carbon material; heating the metal penetrant and the carbon material in a ventilating current of rare gas; and diffusing a metal deposited on a surface of the carbon material by a metallic halide gas formed by a reaction of the metal powder and the halide into the carbon material.