Grain oriented Na0.5Bi0.5TiO3-BaTiO3 ceramics with giant strain response derived from single-crystalline Na0.5Bi0.5TiO3-BaTiO3 templates
发布时间：2022-06-09
点击次数：
影响因子：4.495
DOI码：10.1016/j.jeurceramsoc.2015.12.025
所属单位：中南大学
发表刊物：Journal of the European Ceramic Society
关键字：Single-crystalline NBT-7BT templates Grain orientation Excellent actuating performance
摘要：Grain oriented lead-free piezoelectric 0.93Na0.5Bi0.5TiO3-0.07BaTiO3 (NBT-7BT) were fabricated by templated grain growth (TGG) method using single-crystalline NBT-7BT platelets with a morphotropical phase boundary (MPB) as templates. The NBT-7BT templates were synthesized by the topochemical technique, using Na0.5Bi4.5Ti4O15 (NBIT) platelets as precursors. The grain oriented NBT-7BT ceramics were textured with 10 wt% of NBT-7BT templates and sintered at 1175 °C for 5–50 h. The microstructure, strain behavior and temperature-dependent permittivity of lead-free NBT-7BT ceramics were systematically investigated. The strain responses of the grain oriented NBT-7BT ceramics were found to increase monotonously with the increase of the grain orientation degree. The NBT-7BT ceramic with 89% degree of grain orientation had an excellent actuating performance with up to 0.7% free strain at 7 kV/mm at room temperature, corresponding to a field-induced Smax/Emax of as high as 1000 pm/V.
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：36
期号：3
页面范围：1377-1383
ISSN号：0955-2219
是否译文：否
发表时间：2016-01-02
收录刊物：SCI