Balke, Nina ; Granzow, Torsten ; Rödel, Jürgen (2009)
Degradation of lead-zirconate-titanate ceramics under different dc loads.
In: Journal of Applied Physics, 105 (10)
doi: 10.1063/1.3126707
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
During poling and application in actuators, piezoelectric ceramics like lead-zirconate-titanate are exposed to static or cyclically varying electric fields, often leading to pronounced changes in the electromechanical properties. These fatigue phenomena depend on time, peak electric load, and temperature. Although this process impacts the performance of many actuator materials, its physical understanding remains elusive. This paper proposes a set of key experiments to systematically investigate the changes in the ferroelectric hysteresis, field-dependent relative permittivity, and piezoelectric coefficient after submitting the material to dc loads of varying amplitude and duration. The observed effects are explained based on a model of domain stabilization due to charge accumulation at domain boundaries.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2009 |
| Autor(en): | Balke, Nina ; Granzow, Torsten ; Rödel, Jürgen |
| Art des Eintrags: | Bibliographie |
| Titel: | Degradation of lead-zirconate-titanate ceramics under different dc loads |
| Sprache: | Englisch |
| Publikationsjahr: | Mai 2009 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Applied Physics |
| Jahrgang/Volume einer Zeitschrift: | 105 |
| (Heft-)Nummer: | 10 |
| DOI: | 10.1063/1.3126707 |
| Kurzbeschreibung (Abstract): | During poling and application in actuators, piezoelectric ceramics like lead-zirconate-titanate are exposed to static or cyclically varying electric fields, often leading to pronounced changes in the electromechanical properties. These fatigue phenomena depend on time, peak electric load, and temperature. Although this process impacts the performance of many actuator materials, its physical understanding remains elusive. This paper proposes a set of key experiments to systematically investigate the changes in the ferroelectric hysteresis, field-dependent relative permittivity, and piezoelectric coefficient after submitting the material to dc loads of varying amplitude and duration. The observed effects are explained based on a model of domain stabilization due to charge accumulation at domain boundaries. |
| Freie Schlagworte: | dielectric hysteresis; dielectric polarisation; domain boundaries; electric domains; fatigue; lead compounds; permittivity; piezoceramics; piezoelectricity |
| Zusätzliche Informationen: | SFB 595 D1 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > D - Bauteileigenschaften > Teilprojekt D1: Mesoskopische und makroskopische Ermüdung in dotierten ferroelektrischen Keramiken DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > D - Bauteileigenschaften DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung Zentrale Einrichtungen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) |
| Hinterlegungsdatum: | 18 Mai 2011 15:20 |
| Letzte Änderung: | 05 Mär 2013 09:47 |
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