| 摘要 |
PROBLEM TO BE SOLVED: To singly control porosity without lowering strength, etc., of a carbon material by heating a carbon material processed into a product form in an oxidizing atmosphere to oxidize the surface. SOLUTION: A raw carbon material is put into a container, hydrostatic pressure is applied to the raw material to form, the formed raw material is heated in an inert gas atmosphere to carbonize and then the carbonized material is graphitized by heating it in an inert atmosphere to provide the formed body. The formed body is machined into an arbitrary product form and as necessary, an oxidation accelerator such as Cu, Co, Mn, Mo or V is attached to the surface and heated to 500-600 deg.C in an oxidizing atmosphere to oxidize the surface. |
