采用質量三角形模型估算SrTiO3-La0.3Sr0.7TiO3-(La0.3Sr0.7)0.93TiO3體系中固溶體電導率

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采用質量三角形模型估算SrTiO₃-La_0.3Sr_0.7TiO₃-(La_0.3Sr_0.7)_0.93TiO₃體系中固溶體電導率

基金項目:

深圳市科技局資助項目(JC201006020768A)

北京市優秀博士學位論文指導教師基金資助項目(YB20091000802)

國家自然科學基金資助項目(20973021)

1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. National Key Lab of Metamaterial Electromagnetic Modulation Technology, Shenzhen Kuang-Chi Institute of Advanced Technology, Shenzhen 518057, China;
3. School of Applied Chemistry and Biotechnology, Shenzhen Polytechnic, Shenzhen 518055, China

摘要: 通過質量三角形模型計算了SrTiO₃-La_0.3Sr_0.7TiO₃-(La_0.3Sr_0.7)_0.93TiO₃三元體系中固溶體在100~900℃溫度范圍內的電導率,得到了等電導率圖.對典型組分進行了實驗驗證,實驗值和理論計算符合較好,說明質量三角形模型可以用于混合導體材料電導率的預報.
- 陶瓷材料 /
- 鈦酸鍶 /
- 三元體系 /
- 固溶體 /
- 電導率
Abstract: The constant electric conductivity curves of solid solutions in the SrTiO₃-La_0.3Sr_0.7TiO₃-(La_0.3Sr_0.7)_0.93TiO₃ ternary system were obtained by estimating the electric conductivity of the solid solutions by a mass triangle model. Some typical compositions of the solid solutions were selected to verify the calculated results. The experimental values are consistent well with the predicted ones, demonstrating the feasibility of a mass triangle model in predicting the electric conductivity of mixed conductor.
- ceramic materials /
- strontium titanates /
- ternary systems /
- solid solutions /
- electric conductivity