Schierholz, Roland ; Fuess, Hartmut (2012)
Ferroelectric domains in PZT ceramics at the morphotropic phase boundary. Can the splitting of reflections in SAED patterns be used for the distinction of different pseudo-cubic phases?
In: Journal of Applied Crystallography, 45 (4)
doi: 10.1107/S0021889812022583
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Tetragonal, rhombohedral and monoclinic ferroelectric domains can all occur in morphotropic PbZr1-xTixO3 (PZT) ceramics. In this article, the influence of these domains on the splitting of reflections in selected area electron diffraction (SAED) patterns along the main pseudo-cubic zone axes is reported. The orientation of the domain wall in a transmission electron microscopy image with respect to the splitting of reflections in the diffraction pattern has to be considered for the interpretation. The distinction of tetragonal and rhombohedral splitting is achieved for a pronounced splitting except for <111> with the domain wall edge on. As the monoclinic structure contains tetragonal as well as rhombohedral distortions, the distinction of monoclinic symmetry from tetragonal and rhombohedral based only on the splitting of reflections is not possible. Conceivable models of configurations of monoclinic subdomains inside the existing tetragonal or rhombohedral microdomains are derived from group-subgroup relations. Some experimental observations are given, which can only be explained by these models.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2012 |
| Autor(en): | Schierholz, Roland ; Fuess, Hartmut |
| Art des Eintrags: | Bibliographie |
| Titel: | Ferroelectric domains in PZT ceramics at the morphotropic phase boundary. Can the splitting of reflections in SAED patterns be used for the distinction of different pseudo-cubic phases? |
| Sprache: | Englisch |
| Publikationsjahr: | August 2012 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Applied Crystallography |
| Jahrgang/Volume einer Zeitschrift: | 45 |
| (Heft-)Nummer: | 4 |
| DOI: | 10.1107/S0021889812022583 |
| Kurzbeschreibung (Abstract): | Tetragonal, rhombohedral and monoclinic ferroelectric domains can all occur in morphotropic PbZr1-xTixO3 (PZT) ceramics. In this article, the influence of these domains on the splitting of reflections in selected area electron diffraction (SAED) patterns along the main pseudo-cubic zone axes is reported. The orientation of the domain wall in a transmission electron microscopy image with respect to the splitting of reflections in the diffraction pattern has to be considered for the interpretation. The distinction of tetragonal and rhombohedral splitting is achieved for a pronounced splitting except for <111> with the domain wall edge on. As the monoclinic structure contains tetragonal as well as rhombohedral distortions, the distinction of monoclinic symmetry from tetragonal and rhombohedral based only on the splitting of reflections is not possible. Conceivable models of configurations of monoclinic subdomains inside the existing tetragonal or rhombohedral microdomains are derived from group-subgroup relations. Some experimental observations are given, which can only be explained by these models. |
| Freie Schlagworte: | ferroelectric domains; PZT ceramics; morphotropic phase boundaries; selected area electron diffraction. |
| Zusätzliche Informationen: | SFB 595 B3 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Strukturforschung DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > B - Charakterisierung > Teilprojekt B3: Strukturelle Untersuchungen zur Aufklärung der elektrischen Ermüdung in PZT 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > B - Charakterisierung DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung 11 Fachbereich Material- und Geowissenschaften Zentrale Einrichtungen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) |
| Hinterlegungsdatum: | 31 Aug 2012 12:30 |
| Letzte Änderung: | 05 Mär 2013 10:02 |
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