Composite materials based on Ti–Al–N, were obtained by the self-propagating high-temperature synthesis method. The influence of the initial reaction mixture and synthesis modes on the morphology, structure and phase composition of the samples were studied using X-ray diffraction and scanning electron microscopy. In the thermal explosion mode, the formation of up to 93 wt % of the TiAlN МАХ-phase (phase M AX , where n = 1, 2, 3, …; M is a transition d-metal; A is a p-element; X is carbon) was shown from the initial Ti and AlN mixture. The influence of aluminum dispersion on the qualitative and quantitative phase composition of the samples obtained in the wave combustion mode of Ti and Al powders in a nitrogen atmosphere was analyzed. The use of aluminum with a lower dispersion leads to an increase in the TiAlN content (from ~42 to ~47 wt %).
Larionova et al. (Wed,) studied this question.