Hoffmann, Michael J. ; Hammer, Matthias ; Hammer, A. ; Endriss, A. ; Lupascu, Doru C. (2001)
Correlation between microstructure, strain behavior, and acoustic emission of soft PZT ceramics.
In: Acta Materialia, 49 (7)
doi: 10.1016/S1359-6454(01)00025-8
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The influence of grain size and domain configuration on the microscopic and macroscopic electromechanical properties of soft lead zirconate titanate (PZT) ceramics were studied. Fine- and coarse-grained PZT ceramics with an average grain size of 1.5 and 3.5 mum were prepared using the conventional mixed oxide route and different sintering, conditions (1225 degreesC/2 h and 1300 degreesC/10 h). The experiments were performed on PZT with different Zr/Ti-ratios in order to obtain pure tetragonal (45/55), pure rhombohedral (60/40), and morphotropic (54/46) compositions. To distinguish between the intrinsic and extrinsic effect microscopic strain measurements (Synchrotron X-ray diffraction) were compared with macroscopic measurements of the mechanical hysteresis loop. The results were correlated with acoustic emission measurements which microscopically reflected the intrinsic and extrinsic contributions to the macroscopic strain of the different crystallographic modifications.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2001 |
| Autor(en): | Hoffmann, Michael J. ; Hammer, Matthias ; Hammer, A. ; Endriss, A. ; Lupascu, Doru C. |
| Art des Eintrags: | Bibliographie |
| Titel: | Correlation between microstructure, strain behavior, and acoustic emission of soft PZT ceramics |
| Sprache: | Englisch |
| Publikationsjahr: | April 2001 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Acta Materialia |
| Jahrgang/Volume einer Zeitschrift: | 49 |
| (Heft-)Nummer: | 7 |
| DOI: | 10.1016/S1359-6454(01)00025-8 |
| Kurzbeschreibung (Abstract): | The influence of grain size and domain configuration on the microscopic and macroscopic electromechanical properties of soft lead zirconate titanate (PZT) ceramics were studied. Fine- and coarse-grained PZT ceramics with an average grain size of 1.5 and 3.5 mum were prepared using the conventional mixed oxide route and different sintering, conditions (1225 degreesC/2 h and 1300 degreesC/10 h). The experiments were performed on PZT with different Zr/Ti-ratios in order to obtain pure tetragonal (45/55), pure rhombohedral (60/40), and morphotropic (54/46) compositions. To distinguish between the intrinsic and extrinsic effect microscopic strain measurements (Synchrotron X-ray diffraction) were compared with macroscopic measurements of the mechanical hysteresis loop. The results were correlated with acoustic emission measurements which microscopically reflected the intrinsic and extrinsic contributions to the macroscopic strain of the different crystallographic modifications. |
| Freie Schlagworte: | ceramics; microstructure; strain behavior; X-ray diffraction (XRD); acoustic; LEAD-ZIRCONATE-TITANATE; CRYSTAL ORIENTATION DEPENDENCE; MORPHOTROPIC-PHASE-BOUNDARY; PIEZOELECTRIC PROPERTIES; FERROELECTRIC CERAMICS; SIZE |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 14 Jul 2011 08:45 |
| Letzte Änderung: | 05 Mär 2013 09:50 |
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