无铅压电材料在传感器和执行器中的研究进展。

Department of Materials Science and Engineering, University of Florida, 100 Rhines Hall, Gainesville, FL 32611, USA.

Sensors (Basel). 2010;10(3):1935-54. doi: 10.3390/s100301935. Epub 2010 Mar 10.

Piezoelectrics have widespread use in today's sensor and actuator technologies. However, most commercially available piezoelectric materials, e.g., Pb [Zr(x)Ti(1-x)] O(3) (PZT), are comprised of more than 60 weight percent lead (Pb). Due to its harmful effects, there is a strong impetus to identify new lead-free replacement materials with comparable properties to those of PZT. This review highlights recent developments in several lead-free piezoelectric materials including BaTiO(3), Na(0.5)Bi(0.5)TiO(3), K(0.5)Bi(0.5)TiO(3), Na(0.5)K(0.5)NbO(3), and their solid solutions. The factors that contribute to strong piezoelectric behavior are described and a summary of the properties for the various systems is provided.

压电体在当今的传感器和执行器技术中有着广泛的应用。然而，大多数市售的压电材料，例如 Pb[Zr(x)Ti(1-x)]O(3)（PZT），都由超过 60%重量百分比的铅（Pb）组成。由于其有害影响，强烈促使人们寻找具有与 PZT 相当性能的新型无铅替代材料。本综述重点介绍了几种无铅压电材料的最新进展，包括 BaTiO(3)、Na(0.5)Bi(0.5)TiO(3)、K(0.5)Bi(0.5)TiO(3)、Na(0.5)K(0.5)NbO(3)及其固溶体。描述了促成强压电行为的因素，并提供了各种体系性能的总结。