（Jingdezhen Ceramic Institute, Jingdezhen 333001）

Abstract:TiO₂-ZnO composite oxide has been successfully synthesized by hydrothermal processing with titanium tetrachloride and zinc chloride as raw materials, then the traditional solid-phase synthesis was used to prepare zinc metatitanate (ZnTiO₃) ceramic powder. The structure and morphology were characterized by means of XRD and SEM. The results show that hydrothermal method yields powders with small particle sizes and high reactivity. ZnTiO₃ phase can be synthesized at 650℃.After heat treatment at 800℃, the resultants can be transformed into a pure hexagonal ZnTiO₃ ilmenite phase, avoiding the generation of Zn₂Ti₃O₈ phase.

Keywords:hydrothermal- solid-state phase method, zinc titanate, calcination, grain morphology