Abstract In this study, as a BaSnTiO3 structure based material, (1-x)Ba(Sn,Ti)O3-x(Ba,Ca)TiO3 piezoelectric ceramic was investigated for piezoelectric applications. Even though high piezoelectric properties, low Curie temperature is the obstacles for the applications. To increase Curie temperature of BaSnTiO3 material, (Ba,Ca)TiO3 ceramic was added. (Ba,Ca)TiO3 ceramic has shorter a-parameters compared with that of BaSnTiO3 ceramics, while c-parameter remains similar values of 4.02 A. Due to the increased strain of (1-x)Ba(Sn,Ti)O3-x(Ba,Ca)TiO3, the Curie temperature can be controlled. Also, we have analyzed the structural and piezoelectric properties of a (1-x)Ba(Sn,Ti)O3-x(Ba,Ca)TiO3 system for application to an energy harvesting system. (1-x)Ba(Sn,Ti)O3-x(Ba,Ca)TiO3 ceramics with x = 0.4, 0.5, 0.55, 0.6, and 0.7 were synthesized and analyzed at sintering temperatures from 1455 to 1505 °C. We investigated the piezoelectric charge coefficient and P-E hysteresis loops. Results showed that the optimized composition of (1-x)Ba(Sn,Ti)O3-x(Ba,Ca)TiO3 ceramics was x = 0.55, sintered at 1480 °C. As lead-free piezoelectric ceramics, it is expected that (1-x)Ba(Sn,Ti)O3-x(Ba,Ca)TiO3 ceramics will be promising candidates for various applications.

中文翻译：

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无铅 (1-x)Ba(Sn,Ti)O3-x(Ba,Ca)TiO3 陶瓷的应变相关居里温度和改进的压电性能

摘要 在这项研究中，(1-x)Ba(Sn,Ti)O3-x(Ba,Ca)TiO3 压电陶瓷作为一种基于 BaSnTiO3 结构的材料进行了压电应用研究。尽管具有高压电性能，但居里温度低是应用的障碍。为了提高 BaSnTiO3 材料的居里温度，添加了 (Ba,Ca)TiO3 陶瓷。与 BaSnTiO3 陶瓷相比，(Ba,Ca)TiO3 陶瓷的 a 参数更短，而 c 参数保持相似的值 4.02 A。由于 (1-x)Ba(Sn,Ti)O3-x 的应变增加(Ba,Ca)TiO3，居里温度可控。此外，我们还分析了用于能量收集系统的 (1-x)Ba(Sn,Ti)O3-x(Ba,Ca)TiO3 系统的结构和压电特性。(1-x)Ba(Sn,Ti)O3-x(Ba,Ca)TiO3 陶瓷，其中 x = 0.4、0.5、0.55、0.6 和 0。在 1455 至 1505 °C 的烧结温度下合成和分析了 7 种化合物。我们研究了压电电荷系数和 PE 磁滞回线。结果表明，(1-x)Ba(Sn,Ti)O3-x(Ba,Ca)TiO3陶瓷的优化成分为x=0.55，在1480℃下烧结。作为无铅压电陶瓷，预计 (1-x)Ba(Sn,Ti)O3-x(Ba,Ca)TiO3 陶瓷将成为各种应用的有前景的候选材料。