Paper Title:
Changes in Ferroelectric Properties of 0.7PMN–0.3PT Ceramic with Compressive Stress
  Abstract

In this work, effects of compressive stress on the ferroelectric properties of 0.7PMN–0.3PT ceramics were investigated. The ceramics with the formula (0.7)Pb(Mg1/3Nb2/3)O3-(0.3)PbTiO were prepared by a conventional mixed-oxide method. The ferroelectric properties under compressive stress were observed at stress up to 80 MPa using a compressometer in conjunction with a modified Sawyer-Tower circuit. The results showed that applied stress had a significant influence on the ferroelectric properties of 0.7PMN–0.3PT ceramics. Ferroelectric characteristics, i.e. the area of the ferroelectric hysteresis (P-E) loop, the saturation polarization (Psat), the remanent polarization (Pr) and loop squareness (Rsq), decreased with increasing compressive stress, while the coercive field (Ec) remained relatively constant. Stress-induced domain wall motion suppression and non-180oC ferroelectric domain switching processes are responsible for the changes observed.

  Info
Periodical
Advanced Materials Research (Volumes 55-57)
Main Theme
Edited by
Tawee Tunkasiri
Pages
277-280
DOI
10.4028/www.scientific.net/AMR.55-57.277
Citation
M. Unruan, R. Wongmaneerung, Y. Laosiritaworn, S. Ananta, R. Yimnirun, "Changes in Ferroelectric Properties of 0.7PMN–0.3PT Ceramic with Compressive Stress", Advanced Materials Research, Vols. 55-57, pp. 277-280, 2008
Online since
August 2008
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