| 复杂组成钙钛矿材料中的纳米分相 |
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| 引用本文： | 王晓莉 姚熹. 复杂组成钙钛矿材料中的纳米分相[J]. 西安交通大学学报, 1995, 29(9): 29-35 |
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| 作者姓名： | 王晓莉 姚熹 |
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| 作者单位： | 电子与信息工程学院 |
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| 基金项目： | 国家自然科学重点基金资助项目． |
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| 摘 要： | 大量实验直接或间接证明，在许多化学组成复杂的材料内部，深入到纳米线度来观察材料的组成分布是不均匀的，文章用晶体化学原理分析了复杂钙钛矿材料中纳米微区组成不均匀性的内在动因。在此基础上，将纳米分相的概念引入复杂人化合物和固溶体中，提出纳米分相是许多复杂组成材料的共同结构特征。
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| 关 键 词： | 钙钛矿结构 铁电体 纳米分相 铁电材料 |
NANO-PHASE SEPARATION ON COMPLEX PEROVSKITE MATERIALS |
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| Wang Xiaoli,Yao Xi. NANO-PHASE SEPARATION ON COMPLEX PEROVSKITE MATERIALS[J]. Journal of Xi'an Jiaotong University, 1995, 29(9): 29-35 |
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| Authors: | Wang Xiaoli Yao Xi |
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| Affiliation: | School of electronics and Information Engineering |
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| Abstract: | The intrinsic cause of nano-inhomogeneity in complex perovskite materials is discussed. On this basis, the conception of nano-phase separation is introduced into complex compounds and solid solutions. Nano-phase separation is a common structural identity of many materials with complex chemical composition. The experimental phenomena of the anomalous decrease of phase transition temperature in Pb(Zn113Nb213)03-BaTiO3 system, and the disappearance of frequency dispersion in the solid solutions with high PbTiO3 content are well explained ac-cording to the model of nano-phase separation. |
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| Keywords: | perovskite structure nano-phase separation ferroelectrics |
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