Among three major reported zinc titanate phases (Zn2TiO4, ZnTiO3, and Zn2Ti3O8) in ZnO-TiO2 system, recent studies have shown that ZnTiO3 with illmenite structure could be a good candidate for low temperature co-fired microwave dielectric ceramics (LTCC). However, it is very difficult to prepare ZnTiO3 in a pure form by conventional solid-state reaction, because the compound decomposes to Zn2TiO4 and rutile at ~945 �C. In this study, a novel sonochemical method to prepare nanocrystalline zinc titanate has been developed. Effects of sonochemical synthetic conditions, especially precursors on forming ZnTiO3 and its related solid solutions Zn1-x M xTiO3  (M= Mg, Ni and Co; 0 <x < 1) have been investigated. The dependence of phase formation and microstructure evolution of system on various heating temperatures was carefully studied. The relationship of the crystal size and shape with the above factors from the sonochemical approach will also be discussed in this presentation.

Effect of precursors on sonochemical synthesis of nanosized zinc titanates

244th National Meeting (2012)

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