Synthesis of SrTiO_3 Powders by Gel Solid State Reaction Method

摘要

A new technology, gel solid-state reaction, for synthesis of SrTiO_3 ceramic composite powders is described in the present paper. This process, valuable for a great number of composite powders, is of great simplicity and has a relative low synthetic temperature of powders. The calcined lumped powder is porous and easy to grind. XRD and d-spacing-component figures of the solid solution powder demonstrated that the compounds were mutually miscible in the solid solutions, and SEM showed that they were uniform and substantially spherical with an average size of 1.0 μm in diameter. The remarkable advantages of the method are high yields, solvent-free, and environmental benign.