Novel method to synthesis of single phase zirconolite ceramic

Abstract

Single phase zirconolite (CaZrTi₂O₇) was synthesised by a novel method using acid corrosion to treat zirconolite–diopside mixture powders (2CaZrTi₂O₇–Mg2Si₂O₆). The mixture powders were prepared by solid state reaction method at 1200°C for 2 h. Single phase zirconolite powders were obtained by acid corrosion method with 5% hydrofluoric acid on the zirconolite–diopside Synroc mixture powders and washed with 10% acetic acid.