Poling effect on d33 in textured Bi0.5Na0.5TiO3-based materials

被引:30
作者
Fancher, Chris M. [1 ]
Blendell, John E. [1 ]
Bowman, Keith J. [1 ,2 ]
机构
[1] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA
[2] IIT, Chicago, IL 60616 USA
基金
美国国家科学基金会;
关键词
Lead-free piezoelectric; Texture; Piezoelectricity; Preferred orientation; Ferroelectricity; TEMPLATED GRAIN-GROWTH; PLATE-LIKE NA0.5BI0.5TIO3; CERAMICS;
D O I
10.1016/j.scriptamat.2012.10.047
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Textured (1 - x - y)Bi0.5Na0.5TiO3-(x)BaTiO3-(y)K0.5Na0.5NbO3 ceramics have been produced by tape casting with pure-phase Bi05Na0.5TiO3 templates. Rietveld texture refinement was used to analyze the crystallographic preferred orientation of the fired ceramics. The effect of poling field on d(33) was investigated for applied fields between 0-8 MV m(-1) for pure Bi0.5Na0.5TiO3 and 0-5 MV m(-1) for Bi0.5Na0.5TiO3 alloys, and compared against randomly oriented samples. Texturing enhanced the piezoelectric response of all measured compositions with Bi0.5Na0.5TiO3-(5)BaTiO3 reaching a maximum d(33) of 245 pC N-1. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:443 / 446
页数:4
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