Novel method to synthesis of single phase zirconolite ceramic

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.