Hydrostatic piezoelectric properties of [011] poled Pb(Mg 1/3Nb2/3)O3-PbTiO3 single crystals and 2-2 lamellar composites

Authors

Lili Li, The Pennsylvania State University, Xian Jiaotong University
Shujun Zhang, The Pennsylvania State UniversityFollow
Zhuo Xu, Xian Jiaotong University
Xuecang Geng, Blatek, Inc.
Fei Wen, Xian Jiaotong University
Jun Luo, Trs Technologies, Inc
Thomas R. Shrout, The Pennsylvania State University

RIS ID

106398

Publication Details

Li, L., Zhang, S., Xu, Z., Geng, X., Wen, F., Luo, J. & Shrout, T. R. (2014). Hydrostatic piezoelectric properties of [011] poled Pb(Mg 1/3Nb2/3)O3-PbTiO3 single crystals and 2-2 lamellar composites. Applied Physics Letters, 104 (3), 032909-1-032909-5.

Abstract

The hydrostatic piezoelectric properties of [011] poled Pb(Mg 1/3Nb2/3)O3-PbTiO3 (PMN-PT) crystals and corresponding 2-2 crystal/epoxy composites were investigated. The crystal volume ratio and compositional dependencies of the hydrostatic charge and voltage coefficients (dh and gh) and hydrostatic figure of merit (FOM) dh x gh were determined, where large FOM value of 3.2 pm2/N with high stability as a function of hydrostatic pressure was achieved for rhombohedral crystal composites. In addition, the stress amplification effects of the face-plate and different epoxy matrixes were investigated, with maximum FOM value being on the order of 92 pm2/N, indicating that 2-2 crystal/epoxy composites are promising materials for hydrostatic applications. 2014 AIP Publishing LLC.