Journal article


In-situ structural investigations of ferroelasticity in soft and hard rhombohedral and tetragonal PZT


Publication Details
Author(s): Morozov M, Einarsrud MA, Tolchard JR, Geiger P, Webber K, Damjanovic D, Grande T
Publisher: American Institute of Physics (AIP)
Publication year: 2015
Volume: 118
Journal issue: 16
Pages range: 164104
ISSN: 0021-8979
Language: English

Abstract

Despite the technological importance of hard and soft PZT, Pb(Zr,Ti)O3, ceramics, the mechanisms of ferroelectric hardening and softening remain widely discussed in the literature. The hardening and softening phenomena have traditionally been investigated in relation with dielectric manifestations such as aging of the dielectric susceptibility and constriction of the polarization- electric field hysteresis loop. Here, we present a systematic investigation of the ferroelectric and ferroelastic properties of soft and hard PZT in both the tetragonal and rhombohedral phases. A par- ticular focus has been devoted to ferroelastic domain switching by characterizing the macroscopic mechanical constitutive behavior and in-situ synchrotron X-ray diffraction during compression. It is demonstrated that variation of the ordering state of point defects in PZT ceramics affects the switching behavior of both ferroelectric and ferroelastic domains under mechanical or electrical fields. Softening of the mechanical and electrical properties of originally hard PZT ceramics was conferred by quenching the materials from above the Curie temperature. The present findings are discussed with respect to the current understanding of hardening-softening transitions in ferroelec- tric materials.



How to cite
APA: Morozov, M., Einarsrud, M.-A., Tolchard, J.R., Geiger, P., Webber, K., Damjanovic, D., & Grande, T. (2015). In-situ structural investigations of ferroelasticity in soft and hard rhombohedral and tetragonal PZT. Journal of Applied Physics, 118(16), 164104. https://dx.doi.org/10.1063/1.4934615

MLA: Morozov, Maxim, et al. "In-situ structural investigations of ferroelasticity in soft and hard rhombohedral and tetragonal PZT." Journal of Applied Physics 118.16 (2015): 164104.

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