Abstract

VC and TiC form a complete series of solid solutions. These alloy carbides have a high strength-to-weight ratio; some of the compositions exhibit extremely high high temperature strengths and thus are of technological importance. We investigated the synthesis of VCTiC alloy carbides using the activated reactive evaporation process. A VTi alloy rod was evaporated in the presence of C 2H 2. The evaporation rate, the reactive gas pressure and the deposition temperature were the experimental variables. The deposits were characterized by X-ray diffraction, microhardness, scanning electron microscopy and microprobe analysis. It was shown that VCTiC alloy carbides with the same V:Ti ratio as in the evaporant rod can be synthesized by activated reactive evaporation.

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