The main task of this paper is the modeling of complex oxide covers, which are stable against an influence of combustion products of energetic fuels. The aggressive environment consists from oxy-sulfides of thermal processes for transformation of metal powder with help of sulfur containing additives in the atmosphere.
We are going to study the incoming of Tl2O3 in the hexagonal closed packed cell of Al2O3 and the building of TlAl3O6. Componential capacity of the system Al2O3-SiO2 increases because of addition of the third constituent and because of variation diversity for isomorphic exchanges of aluminum–oxygen complexes with thallium oxide. A total formula of compound transforms into Tl2Al6SiO14 and the phase field of Al6Si2O13 is occupying an area of Tl2O3- Al2O3-SiO2 phase diagram. Thus, the covalent bonding of the metals with oxygen becomes stronger in compare with the initial oxides and the anti-corrosion protection is ordered with the long range structure.