On the structure of the Ti-Si-C-based composite obtained by self-propagating high-temperature synthesis with the use of graphene

Composite materials based on the Ti-Si-C system were obtained by self-propagating high-temperature synthesis with the use of carbon black and graphene as a source of carbon. The comparative investigations of the phase composition and structure of the materials were performed by X-ray diffraction analysis and scanning electron microscopy. It is shown that in the sample obtained with carbon black, ∼ 94 wt.% of MAX-phase Ti3SiC2 is formed. When graphene is used, the content of the MAX phase is heterogeneous throughout the sample volume and is in the range of ∼ 67 – 90 wt.%.