Novel synthesis method of Ca3Al2O6 using an ethanol solution technique

Abstract

A novel method was developed for preparation of Ca3Al 2O6 which is one composition of Portland cement-based mineral trioxide aggregate for endodontic treatment. Only Al(NO 3)3·9H2O and Ca(NO3) 2·4H2O as raw materials and ethanol as solvent were needed in the whole process. The consequent dry Ca3Al 2O6 precursor was examined by thermal analysis and the as-burnt powders calcined at different temperatures for 3 hours were measured by X-ray diffractometry. Pure phase Ca3Al2O6 with particle size of 110μm was obtained at 1100°C and highly pure Ca 3Al2O6 (>99.5%) was obtained at 1350°C. Therefore, this method is useful for preparation of pure Ca3Al 2O6 for biomedical applications. © 2010 The Ceramic Society of Japan.