当前位置: X-MOL 学术J. Eur. Ceram. Soc. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Investigating the antiferroelectric-ferroelectric phase switching time in lanthanum-modified lead zirconate titanate transparent ceramics by using the electrically induced light scattering effect
Journal of the European Ceramic Society ( IF 5.7 ) Pub Date : 2020-09-18 , DOI: 10.1016/j.jeurceramsoc.2020.09.038
Longhai Wang , Yunyi Wu , Feng Liu , Shimin Wang , Wanqiang Cao , Ruikun Pan , Zhengguang Sun , Keyu Zheng , Ming Chen , Beibei Yang , Xinghua Ming , Xiyun He

A method for achieving the accurate measurement of the antiferroelectric-ferroelectric (AFE-FE) phase switching time based on the electrically induced light scattering effect was designed. The AFE-FE switching times of lanthanum-modified lead zirconate titanate (PLZT) transparent ceramics decreased with the increase of the applied electric fields, and the logarithm of the switching time was approximately proportional to the electric field reciprocal. The random orientation of the polycrystalline structures with dispersion-distributed mixed phases of the PLZT transparent ceramics was the intrinsic mechanism affecting the corresponding switching times in the applied electric field. The smaller electrode size samples switched faster than the larger samples in the same electric field. The size effect of the switching times occurred due to the higher dielectric constant of the ceramics and the parameters of the test circuit, and the larger capacitance of the samples resulted in a longer rising time of the applied electric field, which in turn slowed down the phase switching and prolonged the switching time.



中文翻译:

利用电感应光散射效应研究镧改性的锆钛酸铅钛酸盐透明陶瓷中的反铁电-铁电相转换时间

设计了一种基于电感应光散射效应实现反铁电-铁电(AFE-FE)相位切换时间的准确测量的方法。镧改性钛酸锆钛酸铅(PLZT)透明陶瓷的AFE-FE切换时间随施加电场的增加而降低,并且切换时间的对数与电场的倒数成正比。PLZT透明陶瓷具有分散分布混合相的多晶结构的无规取向是影响施加电场中相应开关时间的内在机理。在相同电场下,较小电极尺寸的样品比较大样品的开关速度更快。

更新日期:2020-09-20
down
wechat
bug