Tantalum carbide-coated carbon material and manufacturing method for same

摘要

On the surface of a carbon substrate 41, a tantalum carbide coating film 42 is formed to coat the carbon substrate 41. The tantalum carbide coating film 42 has a maximum peak value of at least 80 degrees in an orientation angle of a (311) plane corresponding to a diffraction peak of tantalum carbide as determined by X-ray diffraction.

主权项

1. A tantalum carbide-coated carbon material, comprising:
a carbon substrate; and a tantalum carbide coating film on which the carbon substrate is provided, wherein, the tantalum carbide coating film comprises one or more tantalum carbide crystals, a (311) plane of the tantalum carbide crystals has a maximum intensity at an orientation angle α of at least 80 degrees as determined by a pole figure measurement with an X-ray diffraction, and a sum of diffraction intensities of the (311) plane and a (220) plane of the tantalum carbide crystals in an X-ray diffraction pattern is not lower than 0.5 and not higher than 0.9 as compared to a sum total of diffraction intensities of all crystal planes of the tantalum carbide crystals in the X-ray diffraction pattern.