Kozielski Lucjan, Wilk Agnieszka, Bućko Mirosław M, Banys Juras
Faculty of Science and Technology, University of Silesia, 1A 75 Pułku Piechoty St., 41-500 Chorzów, Poland.
AGH-University of Science and Technology, Faculty of Materials Science and Ceramics, al. Mickiewicza 30, 30-059 Krakow, Poland.
Materials (Basel). 2020 Apr 1;13(7):1620. doi: 10.3390/ma13071620.
There is a strong need in the industry to develop lead-free piezoelectrics for sensors and actuators. Although these materials have become an important component of many electronic devices, it is very important for the industry to decarbonise ceramic technology, especially through the introduction of modern sintering technologies. Among the many piezoelectric compounds available, Calcium Barium Titanate (BCT) have been widely investigated because of its similar performance to lead-containing Lead Titanate Zirconate (PZT). In this paper, a modified Pechini method for obtaining ceramic BaCaTiO nano-powders is described. Deviation from the established procedure resulted in the precipitation of the solution or obtaining of a low-quality (poorly crystallized) product with numerous impurities. The samples of BCT materials were examined to find their ideal microstructures and structures; these factors were confirmed by their outstanding X-ray diffraction spectra and high piezoelectric constant values that are comparable to commercial lead-containing materials.
该行业迫切需要开发用于传感器和致动器的无铅压电材料。尽管这些材料已成为许多电子设备的重要组成部分，但对该行业来说，使陶瓷技术脱碳非常重要，特别是通过引入现代烧结技术。在众多可用的压电化合物中，钛酸钡钙（BCT）因其性能与含铅的锆钛酸铅（PZT）相似而受到广泛研究。本文描述了一种用于获得陶瓷BaCaTiO纳米粉末的改进型佩琴尼法。偏离既定程序会导致溶液沉淀或获得含有大量杂质的低质量（结晶不良）产品。对BCT材料的样品进行了检查，以找到其理想的微观结构和结构；这些因素通过其出色的X射线衍射光谱和与商用含铅材料相当的高压电常数得到了证实。
