硅酸盐学报

钙钛矿结构织构化无铅压电陶瓷的研究

作者：翟继卫刘百慧刘星李朋李峰沈波

单位：同济大学材料科学与工程学院上海 201804

分类号：TB34；TM22+1；TM282

出版年,卷(期):页码：2017,45(9):0-0

DOI：

摘要：

综述了反应模板晶粒生长(RTGG)技术和模板晶粒生长(TGG)技术在钙钛矿结构织构陶瓷中的应用，探讨了利用TGG技术制备具有<001>取向织构陶瓷的生长机制，并对模板和基料的选择进行了说明：1)模板应选择与基料具有相同晶体结构且晶格失配小于15%的非等轴化学性能随温度变化稳定的片状单晶体；2)从动力学角度分析了TGG 过程，基料颗粒越细小,模板形核和取向晶粒生长的驱动力越大。评述了3 种具有钙钛矿结构无铅压电织构陶瓷体系(铌酸钾钠基、钛酸钡基、钛酸铋钾钠基)的织构化研究现状和织构陶瓷特点，特别是压电性能改善的途径，并展望了3 类具有钙钛矿结构无铅压电陶瓷织构化的发展方向及前景。

基金项目：

国家自然科学基金(51372171, 51332003)资助。

作者简介：

翟继卫(1963—)，男，教授。

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