Tantalum carbide-coated carbon material and production...

Details Tantalum carbide-coated carbon material and production... Tantalum carbide-coated carbon material and production...

C - Chemistry, Metallurgy

04

B

C04B 41/87 (2006.01) C04B 41/89 (2006.01) C01B 31/30 (2006.01)

Patent

CA 2723324

The problem of the present invention is provision of a tantalum carbide-coated carbon material having superior corrosion resistance to reducing gas and superior resistance to thermal shock at a high temperature and a production method thereof. According to the present invention, a tantalum carbide--coated carbon material having a carbon substrate and a coating film formed directly or via an intermediate layer on the aforementioned carbon substrate can be provided. The coating film consists of a number of microcrystals of tantalum carbide, which are densely gathered and, in an X-ray diffraction pattern of the coating film, the diffraction intensity of the (220) plane of tantalum carbide preferably shows the maximum level, more preferably, the aforementioned diffraction intensity is not less than 4 times the intensity of the second highest diffraction intensity.

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