CARBON COMPOSITE MATERIAL

摘要

A carbon composite material having a carbon substrate and, formed on the surface thereof, a tantalum carbide layer, characterized in that in the X-ray diffraction pattern of the crystal constituting the tantalum carbide layer, the ratio of the intensity of the peak corresponding to the (200) face to that of the peak corresponding to the (111) face: I(200)/I(111) is 0.2 to 0.5, or the ratio of the intensity of the peak corresponding to the (111) face to that of the peak corresponding to the (200) face: I(111)/I(200) is 0.2 to 0.5. The carbon composite material is excellent in durability and is free from the occurrence of damages such as cracking and exfoliation resulting from exhaustion or the like even after it is used at a high temperature in an atmosphere of a reducing gas or a reactive gas for a long period of time.