Nonhydrolytic Sol-Gel Process: Aluminium and Zirconium Titanate Gels

The effectiveness of nonhydrolytic Sol-Gel process to the synthesis of homogeneous bicomponent gels has been studied in the case of aluminium titanate and zirconium titanate. The direct crystallization of Al₂TiO₅ and ZrTiO₄ at low temperature without the intermediate formation of TiO₂ or Al₂O₃ in the former case and TiO₂ or ZrO₂ in the latter indicates that homogeneous bicomponent gels have been formed by this route.