材料科学
共沉淀
降水
化学工程
工艺工程
气象学
工程类
物理
作者
Upendra Nath Gupta,V. Samuel,H. Muthurajan,H. H. Kumar,Satish Patil,V. Ravi
标识
DOI:10.1016/j.ceramint.2007.02.002
摘要
Abstract A simple co-precipitation technique has been successfully used for the preparation of pure, ultrafine, single phase Bi3TiNbO9 (BTN). An aqueous ammonium hydroxide solution was used to simultaneously precipitate Bi3+, Ti4+ and Nb5+ cations as hydroxides under basic conditions (pH ∼9). No pyrochlore phase was found while heating powder at 500 °C and pure BTN phase was found to be formed by X-ray diffraction (XRD). For comparison, BTN samples were also synthesized by the traditional solid state method. The sequence of phase formation in both cases were investigated by XRD studies.
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