Potassium tetratitanate (K2Ti4O9) whiskers with an average diameter and aspect ratio of 1-3 μm and 20-30 respectively were synthesized by calcinating mixtures of industrial grade potassium carbonate (K2CO3), anatase TiO2 and potassium fluoride (KF). The effects of the titanium compounds, molar ratio of K2O/TiO2 and content of KF on the morphology of the whiskers were investigated. The results indicated that the addition of KF improved the growth of potassium tetratinate crystals.

Keywords: Potassium tetratitanate, Whiskers, Solid state reaction, KF.