Kungl, Hans ; Hoffmann, Michael J. (2007)
Temperature dependence of poling strain and strain under high electric fields in LaSr-doped morphotropic PZT and its relation to changes in structural characteristics.
In: Acta Materialia, 55 (17)
doi: 10.1016/j.actamat.2007.06.035
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The performance of ferroelectric devices when operated over a wide temperature range is subject to considerable changes resulting from the temperature dependence of strain characteristics of the functional materials. The effects of temperature on poling strain and strain under unipolar cycling at electric fields of 2.5 kV mm−1 have been investigated for morphotropic donor doped lead zirconate titanate (PZT) with various Zr/Ti ratios between 20 and 160 °C. Remanent strain and strain under electric field show opposite behaviors with respect to their temperature dependence for all materials. The remanent strain was found to decrease at high temperature, whereas the field-induced strain under unipolar cycling increases. Depending on composition, there are marked differences with respect to the quantitative temperature behavior and the non-linearity of strain–temperature (SE–T) characteristics. From corresponding X-ray diffraction patterns the differences in strain behavior can be related to the specific temperature-induced structural changes in the materials.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2007 |
| Autor(en): | Kungl, Hans ; Hoffmann, Michael J. |
| Art des Eintrags: | Bibliographie |
| Titel: | Temperature dependence of poling strain and strain under high electric fields in LaSr-doped morphotropic PZT and its relation to changes in structural characteristics |
| Sprache: | Englisch |
| Publikationsjahr: | Oktober 2007 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Acta Materialia |
| Jahrgang/Volume einer Zeitschrift: | 55 |
| (Heft-)Nummer: | 17 |
| DOI: | 10.1016/j.actamat.2007.06.035 |
| Kurzbeschreibung (Abstract): | The performance of ferroelectric devices when operated over a wide temperature range is subject to considerable changes resulting from the temperature dependence of strain characteristics of the functional materials. The effects of temperature on poling strain and strain under unipolar cycling at electric fields of 2.5 kV mm−1 have been investigated for morphotropic donor doped lead zirconate titanate (PZT) with various Zr/Ti ratios between 20 and 160 °C. Remanent strain and strain under electric field show opposite behaviors with respect to their temperature dependence for all materials. The remanent strain was found to decrease at high temperature, whereas the field-induced strain under unipolar cycling increases. Depending on composition, there are marked differences with respect to the quantitative temperature behavior and the non-linearity of strain–temperature (SE–T) characteristics. From corresponding X-ray diffraction patterns the differences in strain behavior can be related to the specific temperature-induced structural changes in the materials. |
| Freie Schlagworte: | Ferroelectricity; Piezoelectricity; X-ray diffraction; Phase transformations; Perovskites |
| 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 11:37 |
| Letzte Änderung: | 05 Mär 2013 09:51 |
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