Composition induced structure evolution and large strain response in ternary Bi0.5Na0.5TiO3-Bi0.5K0.5TiO3-SrTiO3 solid solution
Composition induced structure evolution and large strain response in ternary Bi0.5Na0.5TiO3-Bi0.5K0.5TiO3-SrTiO3 solid solution
复制标题
三元 Bi0.5Na0.5TiO3-Bi0.5K0.5TiO3-SrTiO3 固溶体中成分诱导的结构演化和大应变响应
DOI：
10.1063/1.4825122
复制
发表时间：
2013-10
影响因子：
3.2
通讯作者：
Shi, Wangzhou
中科院分区：
文献类型：
--
作者：
Leung, Chung Ming;Tang, Yanxue;Wang, Tao;Shi, Wangzhou
采用传统制备工艺设计并制备了三元钙钛矿无铅固溶体Bi0.5Na0.5TiO3-Bi0.5K0.5TiO3-SrTiO3。系统地研究了铁电、介电、压电和机电性能的温度和成分依赖性，并建立了示意性相图。人们发现 SrTiO3 的引入诱导了从铁电菱面体相到遍历弛豫赝立方相的结构演化。在 SrTiO3 的临界成分为 0.15 时，在 0.1Hz、4.4kV/mm 的中等场下获得了约 0.25% 的大应变水平，归一化应变高达 585pm/V。通过X射线衍射结果与压响应力显微镜分析相结合，讨论了成分诱导的结构演化过程和导致大应变响应的内在机制。大应变水平也使得该系统非常有希望应用于“开关”......
A ternary perovskite lead-free solid solution Bi0.5Na0.5TiO3-Bi0.5K0.5TiO3-SrTiO3 was designed and fabricated using a conventional fabrication process. The temperature and composition dependence of the ferroelectric, dielectric, piezoelectric, and electromechanical properties were systematically investigated, and a schematic phase diagram was established. The introduction of the SrTiO3 was found to induce a structure evolution from the ferroelectric rhombohedra to ergodic relaxor pseudocubic phases. At a critical composition with SrTiO3 of 0.15, large strain level of ∼0.25% was obtained under a moderate field of 4.4 kV/mm at 0.1 Hz and the normalized strain reached up to 585 pm/V. Through the combination of the X-ray diffraction results with the piezoresponse force microscopy analysis, the composition induced structure evolution process and intrinsic mechanism responsible for the large strain response were discussed. The large strain level also makes the system quite promising for application to “on-off” ...
登录
查看更多内容
影响因子：
3.9
作者：
J. Kling;X. Tan;W. Jo;H. Kleebe;H. Fuess,;J. Rödel
通讯作者：
J. Kling;X. Tan;W. Jo;H. Kleebe;H. Fuess,;J. Rödel
影响因子：
4
作者：
W. Jo;J. Rödel
通讯作者：
W. Jo;J. Rödel
影响因子：
64.8
作者：
Saito, Y;Takao, H;Nakamura, M
通讯作者：
Nakamura, M
影响因子：
4.5
作者：
Feifei Wang;Min Xu;C. Leung;Yanxue Tang;Tao Wang;Xinman Chen;W. Shi
通讯作者：
Feifei Wang;Min Xu;C. Leung;Yanxue Tang;Tao Wang;Xinman Chen;W. Shi
影响因子：
4
作者：
Y. Hiruma;H. Nagata;T. Takenaka
通讯作者：
Y. Hiruma;H. Nagata;T. Takenaka