Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7898691 | Journal of the European Ceramic Society | 2018 | 24 Pages |
Abstract
Pb0.97La0.03(Zr0.9Ti0.1)0.9925O3 (PLZT 3/90/10) ceramics prepared by solid-state reaction with the compositions near the antiferroelectric/ferroelectric (FE/AFE) phase boundary were studied. From the polarization-electric field P(E) dependence and ex situ X-ray study, an irreversible electric field induced AFE-to-FE phase transition is verified at room temperature. Dielectric and in situ temperature dependent X-ray analysis evidence that the phase transition sequence in PLZT 3/90/10-based ceramics can be readily altered by poling. A first order antiferroelectric-paraelectric (AFE-to-PE) transition occurred atââ¼190 °C in virgin sample and atââ¼180 °C in poled sample. In addition, a FE-to-AFE transition occurs in the poled ceramic at much lower temperatures (â¼120 °C) with respect to the Curie range (â¼190 °C). The temperature-induced FE-to-AFE transition is diffuse and takes place in a broad temperature range of 72-135 °C. The recovery of AFE is accompanied by an enhancement in the piezoelectric properties.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
I.V. Ciuchi, C.C. Chung, C.M. Fancher, C. Capiani, J.L. Jones, L. Mitoseriu, C. Galassi,