Production of ceramic materials based on the system of Co–Cr–O, Ce–O by the method of SHS

The regularities of the processes occurring during the thermal decomposition of cobalt, chromium, cerium and sucrose nitrates were studied. Nanodimensional oxide ceramic materials based on oxides of cobalt, chromium, cerium, CoCr₂O₄ are obtained. The effect of the composition of the initial mixture, the mass of the sample, and the rate of heating on the formation of the synthesis product, its phase composition was established. It is shown that the process can proceed in the autoignition mode. A sample was prepared containing the catalytic layer on a porous metal-ceramic support. The obtained sample has catalytic activity in the afterburning process of exhaust gases. (paper)