Metal carbide-coated carbon material

Abstract

The present invention relates to a metal carbide-coated carbon material including a carbon substrate containing carbon as a main component and a metal carbide coating film covering at least part of the carbon substrate, in which the metal carbide constituting the metal carbide coating film is at least one metal carbide selected from the group consisting of tantalum carbide, niobium carbide, zirconium carbide, hafnium carbide, and tungsten carbide, in which the carbon substrate contains at least one element selected from the group consisting of aluminum, iron, magnesium, titanium, silicon, calcium, vanadium, nickel, sodium, potassium, and sulfur, and in which the total concentration of aluminum, iron, magnesium, titanium, silicon, calcium, vanadium, nickel, sodium, potassium, and sulfur in the carbon substrate is 10 mass ppm or more and 10,000 mass ppm or less. The present invention can provide a metal carbide-coated carbon material from which outgassing is less likely to occur in a high-temperature environment.

Dependencies are inferred from the claim text.