INVESTIGATION OF THE MECHANISM OF FORMATION OF ALUMINA COBALT SPINEL BY THE METHOD OF SELF-PROPAGATING INTERACTION

The interaction in the CoSO4 – Al2(SO4)3 – Na2O2 system was experimentally analyzed. It has been established that a sufficiently high temperature, which is reached in the front of the self-propagating interaction (SRV), the restructuring of the crystal lattices of reacting substances, the formation of new crystal structures, as well as the release of oxygen contribute to the formation of oxides in a very reactive state with small particle sizes. The data of the X-ray phase analysis of the interaction product confirms the formation of the CoAl2O4 phase.