Structural design and properties of fine scale 2-2-2 PZT/epoxy piezoelectric composites for high frequency application. Issue 9 (15th June 2018)

• Record Type: Journal Article
• Authors: Yi, Shanling; Zhang, Wenkang; Gao, Guangpeng; Xu, Hongchao; Xu, Dongyu
• Is Part Of: Ceramics international. Volume 44:Issue 9(2018)
• Page Start: 10940
• Page End: 10944
• Publication Date: 2018-06-15
• Subjects: Piezoelectric composites -- Piezoelectric properties -- Dielectric properties; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2018.03.165
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: A kind of fine scale 2-2-2 PZT/epoxy piezoelectric composites consisting of PZT phase of uniform and Gaussian distribution were designed and prepared by cutting and filling method. The effects of thickness parameter on piezoelectric, dielectric and electromechanical coupling properties of the piezoelectric materials were investigated. The results show that piezoelectric composites exhibit large piezoelectric voltage constant and thickness electromechanical coupling coefficient. The relative permittivity, piezoelectric strain constant and planner electromechanical coupling coefficient increase with increasing the thickness of supporting base, and the piezoelectric voltage constant and thickness electromechanical coupling coefficient show the opposite variation. The Gaussian PZT/epoxy composite has larger piezoelectric voltage constant and thickness electromechanical coupling coefficient than the uniform PZT/epoxy composite.