Schierholz, Roland ; Fuess, Hartmut (2011)
Symmetry of domains in morphotropic PbZr_{1−x}Ti_{x}O_{3} ceramics.
In: Physical Review B, 84 (6)
doi: 10.1103/PhysRevB.84.064122
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
PbZr1−xTixO3 (PZT) ceramic samples with compositions over the morphotropic phase boundary (MPB) ranging from 45/55 to 60/40 [(1−x)/x] are studied by transmission electron microscopy combined with convergent-beam electron diffraction (CBED). All point-group symmetries debated for morphotropic PZT, 4mm, m, and 3m, are identified. Up to PZT 54/46 the symmetry is mainly tetragonal within lamellar domain configurations. From PZT 52/48 to PZT 54/46 nanodomains evolve within the tetragonal microdomains and monoclinic symmetry is identified within the same domain configurations, together with tetragonal symmetry for PZT 54/46. For PZT 55/45 up to PZT 60/40 rhombohedral symmetry is observed. Rhombohedral domains, as identified by CBED, are characterized by their width, curved domain walls, and grainy inner contrast. This contrast, together with anisotropic first-order Laue-zone intensities, implies that local deviations from 3m symmetry may exist within rhombohedral domains. Between PZT 54/46 and PZT 55/45 the morphology of the microdomains changes abruptly. For PZT 54.5/45.5 both types of domain configurations coexist within the same grain. For PZT 56/44 a tetragonal inclusion within a rhombohedral matrix is identified by CBED. On the other side of the MPB, domains with a rhombohedral appearance are found in PZT 53.5/46.5. These observation were less frequent but show that coexistence is present in ceramic samples around the MPB.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2011 |
| Autor(en): | Schierholz, Roland ; Fuess, Hartmut |
| Art des Eintrags: | Bibliographie |
| Titel: | Symmetry of domains in morphotropic PbZr_{1−x}Ti_{x}O_{3} ceramics |
| Sprache: | Englisch |
| Publikationsjahr: | 26 August 2011 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review B |
| Jahrgang/Volume einer Zeitschrift: | 84 |
| (Heft-)Nummer: | 6 |
| DOI: | 10.1103/PhysRevB.84.064122 |
| Kurzbeschreibung (Abstract): | PbZr1−xTixO3 (PZT) ceramic samples with compositions over the morphotropic phase boundary (MPB) ranging from 45/55 to 60/40 [(1−x)/x] are studied by transmission electron microscopy combined with convergent-beam electron diffraction (CBED). All point-group symmetries debated for morphotropic PZT, 4mm, m, and 3m, are identified. Up to PZT 54/46 the symmetry is mainly tetragonal within lamellar domain configurations. From PZT 52/48 to PZT 54/46 nanodomains evolve within the tetragonal microdomains and monoclinic symmetry is identified within the same domain configurations, together with tetragonal symmetry for PZT 54/46. For PZT 55/45 up to PZT 60/40 rhombohedral symmetry is observed. Rhombohedral domains, as identified by CBED, are characterized by their width, curved domain walls, and grainy inner contrast. This contrast, together with anisotropic first-order Laue-zone intensities, implies that local deviations from 3m symmetry may exist within rhombohedral domains. Between PZT 54/46 and PZT 55/45 the morphology of the microdomains changes abruptly. For PZT 54.5/45.5 both types of domain configurations coexist within the same grain. For PZT 56/44 a tetragonal inclusion within a rhombohedral matrix is identified by CBED. On the other side of the MPB, domains with a rhombohedral appearance are found in PZT 53.5/46.5. These observation were less frequent but show that coexistence is present in ceramic samples around the MPB. |
| Zusätzliche Informationen: | SFB 595 B3 |
| Fachbereich(e)/-gebiet(e): | DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > B - Charakterisierung > Teilprojekt B3: Strukturelle Untersuchungen zur Aufklärung der elektrischen Ermüdung in PZT DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > B - Charakterisierung DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung Zentrale Einrichtungen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) |
| Hinterlegungsdatum: | 31 Aug 2012 12:46 |
| Letzte Änderung: | 05 Mär 2013 10:02 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum