Dielectric Properties of Pb(Zr_1/2Ti_1/2)O₃-Pb(Zn_1/3Nb_2/3)O₃ Ceramics Under Compressive Stress Applied Perpendicular to Electric Field

Abstract

Effects of compressive stress applied perpendicular to electric field on dielectric properties of (1−x)Pb(Zr _1/2 Ti _1/2 )O ₃ −(x)Pb(Zn _1/3 Nb _2/3 )O ₃ (x = 0.1–0.5) ceramics were investigated. The results showed that the superimposed compression stress had pronounced effects on the dielectric properties of PZT-PZN ceramics. With increasing compressive stress the dielectric constant of the ceramics decreased, while the dielectric loss tangent increased. The observations were mainly interpreted in terms of competing influences of the domain switching through non-180° domain walls, clamping of domain walls, and de-aging mechanisms. Interestingly, the observed changes of the dielectric properties with the perpendicular compressive stress were generally similar to those under the parallel stress.

Keywords:

• Dielectric properties
• PZT-PZN
• compressive stress
• perpendicular

PACS:

• (1) 77.80.-e
• (2) 77.80.Fm
• (3) 77. 84.-s

Acknowledgments

This work was jointly supported by the Synchrotron Light Research Institute (Public Organization). Royal Golden Jubilee (RGJ) Ph.D. Program, Faculty of Science and Graduate School of Chiang Mai University.