EFFECT OF THE PHASE AND TECHNOLOGICAL HISTORY ON THE EVOLUTION OF THEALO1.5-TIO2 SYSTEM

With the AlO1.5-TiO2 system taken as an example, it is shown that powd ered compositions obtained by carrying out cyclic chemical reactions o n the surface of the basic component are characterized by a number of specific properties, namely, maximal degree of the spatial and structu ral conjugation of the components and high-energy (strained) structure of the covering component. When heat-treating these compositions at 1 573 K, the formation of aluminum titanate is practically complete in 5 min. In the kinetic study of the solid-state synthesis of aluminum ti tanate from the components having a specific history, the formation of beta-Al2TiO5 is revealed in the range of the thermal instability of t he latter.