Hall, D. A. ; Mori, T. ; Withers, P. J. ; Kungl, Hans ; Hoffmann, Michael J. ; Wright, J. (2008)
Domain switching in rhombohedral PZT ceramics under electrical and mechanical loading.
In: Materials Science and Technology, 24 (8)
doi: 10.1179/174328408X302611
Artikel, Bibliographie
Kurzbeschreibung (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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2008 |
| Autor(en): | Hall, D. A. ; Mori, T. ; Withers, P. J. ; Kungl, Hans ; Hoffmann, Michael J. ; Wright, J. |
| Art des Eintrags: | Bibliographie |
| Titel: | Domain switching in rhombohedral PZT ceramics under electrical and mechanical loading |
| Sprache: | Englisch |
| Publikationsjahr: | August 2008 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials Science and Technology |
| Jahrgang/Volume einer Zeitschrift: | 24 |
| (Heft-)Nummer: | 8 |
| DOI: | 10.1179/174328408X302611 |
| Kurzbeschreibung (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. |
| Freie Schlagworte: | SYNCHROTRON X-RAY; DOMAIN SWITCHING; LATTICE STRAIN; FERROELECTRIC |
| Zusätzliche Informationen: | SFB 595 A2 |
| Fachbereich(e)/-gebiet(e): | DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > A - Synthese > Teilprojekt A2: Herstellung und Charakterisierung von PZT-Keramiken mit definierter Defektchemie DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > A - Synthese DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung Zentrale Einrichtungen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) |
| Hinterlegungsdatum: | 27 Jul 2011 10:42 |
| Letzte Änderung: | 05 Mär 2013 09:51 |
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