[en] The results of structural research of the samples received with hot pressure of Al₂O₃-TiC system composite materials are presented. As a result of researches it is stated that at hot pressure between up to 1550 ℃, titanium carbide and aluminum oxide do not interact with creation of some new phase. In case of hot pressure sintering, small additions of titanium carbide and oxides (MgO, Y₂O₃) prevent the growth of aluminum oxide grains, ensure material compactness and mechanical strength while as to the effect of carbon fiber it has, in our opinion, double meaning: it heightens composite bending strength and at the same time helps to preserve titanium carbide stoichiometric composition. (author)