Effect of a transverse tensile stress on the electric-field-induced domain reorientation in soft PZT: In situ XRD study

Citation:

Li, X. P. ; Shih, W. Y. ; Vartuli, J. S. ; Milius, D. L. ; Aksay, I. A. ; Shih, W. H. Effect of a transverse tensile stress on the electric-field-induced domain reorientation in soft PZT: In situ XRD study. Journal of the American Ceramic Society 2002, 85, 844-850.

Date Published:

Apr

ISBN Number:

0002-7820

Accession Number:

WOS:000174956900018

Abstract:

The effect of a transverse tensile stress on the electric-fieldinduced 90°-domain reorientation in tetragonal lead zirconate titanate (PZT) near the morphotropic phase boundary was investigated in situ using X-ray diffraction (XRD). The XRD intensity ratio, I(002)/I(200), which represents the ratio of the volume of the c-domains to that of the a-domains on the PZT surface, was examined as a function of the electric field at various stress levels. It was found that a transverse tensile stress changes the electric-field dependence of I(002)/I(200), especially at higher electric fields. Without a transverse tensile stress, I(002)/I(200) began to saturate at E 800 kV/m. With a transverse tensile stress of 75 MPa, I(002)/I(200) increased with an upward curvature with the electric field, indicating that the transverse tensile stress enhanced the field-induced 90°- domain reorientation, and increased the effective piezoelectric coefficients at larger electric fields. At E 900 kV/m, the estimated d31,domain changed from 200 1012 V/m at zero stress, to 350 1012 V/m at 75 MPa.