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Domain switching in rhombohedral PZT ceramics under electrical and mechanical loading

Hall, D. A. and Mori, T. and Withers, P. J. and Kungl, Hans and Hoffmann, Michael J. and Wright, J. (2008):
Domain switching in rhombohedral PZT ceramics under electrical and mechanical loading.
In: Materials Science and Technology, pp. 927-933, 24, (8), ISSN 02670836, [Online-Edition: http://dx.doi.org/10.1179/174328408X302611],
[Article]

Abstract

Ferroelectric domain switching in rhombohedral lead zirconate titanate (PZT) ceramics has been studied using high energy synchrotron X-ray diffraction. The diffraction data for a range of different grain orientations were obtained rapidly, with a data acquisition time of 20 s, using a Frelon CCD camera. Changes in the lattice strain and ferroelectric domain fractions under an applied electric field or compressive stress were determined by measuring the positions and relative intensities of the diffraction peaks. It was observed that domain switching under an electric field occurred over a narrow range of field strength, whereas that due to a compressive stress occurred more gradually, over a wider range of applied stress. This effect is due to a combination of factors, including the influence of residual stress, the presence of the electrical depolarisation field, and the nature of the electric field and stress tensors. It was confirmed that the work required for domain switching is the same under electrical or mechanical loading, and approximately equal to 0˙34 MJ m−3.

Item Type: Article
Erschienen: 2008
Creators: Hall, D. A. and Mori, T. and Withers, P. J. and Kungl, Hans and Hoffmann, Michael J. and Wright, J.
Title: Domain switching in rhombohedral PZT ceramics under electrical and mechanical loading
Language: English
Abstract:

Ferroelectric domain switching in rhombohedral lead zirconate titanate (PZT) ceramics has been studied using high energy synchrotron X-ray diffraction. The diffraction data for a range of different grain orientations were obtained rapidly, with a data acquisition time of 20 s, using a Frelon CCD camera. Changes in the lattice strain and ferroelectric domain fractions under an applied electric field or compressive stress were determined by measuring the positions and relative intensities of the diffraction peaks. It was observed that domain switching under an electric field occurred over a narrow range of field strength, whereas that due to a compressive stress occurred more gradually, over a wider range of applied stress. This effect is due to a combination of factors, including the influence of residual stress, the presence of the electrical depolarisation field, and the nature of the electric field and stress tensors. It was confirmed that the work required for domain switching is the same under electrical or mechanical loading, and approximately equal to 0˙34 MJ m−3.

Journal or Publication Title: Materials Science and Technology
Volume: 24
Number: 8
Uncontrolled Keywords: SYNCHROTRON X-RAY; DOMAIN SWITCHING; LATTICE STRAIN; FERROELECTRIC
Divisions: DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis > Subproject A2: Manufacturing and characterization of PZT-ceramics with defined defect chemistry
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 27 Jul 2011 10:42
Official URL: http://dx.doi.org/10.1179/174328408X302611
Additional Information:

SFB 595 A2

Identification Number: doi:10.1179/174328408X302611
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