Synthesis of Na0.5Bi0.5TiO3 whiskers and their nanoscale piezoelectricity
发布时间：2022-06-09
点击次数：
影响因子：3.83
DOI码：10.1016/j.ceramint.2017.05.321
所属单位：中南大学
发表刊物：Ceramics International
关键字：Na0.5Bi0.5TiO3 whiskers Nanodomains Piezoelectric response
摘要：The perovskite structured lead-free system Na0.5Bi0.5TiO3 (NBT) whiskers were synthesized from whiskers of layered tunnel structured Na2Ti6O13 (NT), using a topochemical route. Both NT and NBT whiskers show high aspect ratios with an average length of 15 µm and diameter of 1 µm. By prolonging the reaction time from 2 h to 6 h at 900 °C, NT whiskers with monoclinic phase completely transformed to NBT whiskers with pseudocubic phase. Typical strip-like nanodomains are observed in a NBT whisker, which are parallel to each other. The piezoelectric response amplitude for a NBT whisker indicates a large electric field induced strain, corresponding to a Smax/Emax value of as high as 300 pm/V. This work provides an in-depth instruction to prepare pure NBT whiskers, and gives the detailed piezoelectricity of NBT whiskers to promote their applications in energy harvesting and micro-electromechanical systems.
第一作者：C. Jiang
论文类型：期刊论文
学科门类：工学
一级学科：材料科学与工程
文献类型：J
卷号：43
期号：14
页面范围：11274-11280
ISSN号：0272-8842
是否译文：否
发表时间：2017-05-25
收录刊物：SCI