Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Granzow, Torsten ; Rödel, Jürgen (2007)
Influence of radial stress on the poling behaviour of lead zirconate titanate ceramics.
In: Acta Materialia, 55 (2)
doi: 10.1016/j.actamat.2006.08.057
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The development of new piezoelectric materials is often hampered by high electrical conductivity or coercive fields, which make it virtually impossible to produce sufficient levels of electric polarization by application of an external electric field. As a remedy, we utilize a new poling method: stress-assisted poling, which is based on the simultaneous application of electrical field and mechanical stress. The method is demonstrated on a commercial ferroelectric (PZT PIC 151). The poling field E* where most domain switching occurs is reduced by about 40% if a radial compressive stress of about 90 MPa is applied to the sample. The piezoelectric coefficient d33 is determined for different load magnitudes. Variations of both remnant and maximum polarization are determined with respect to the magnitude of compressive radial stress.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2007 |
| Autor(en): | Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Granzow, Torsten ; Rödel, Jürgen |
| Art des Eintrags: | Bibliographie |
| Titel: | Influence of radial stress on the poling behaviour of lead zirconate titanate ceramics |
| Sprache: | Englisch |
| Publikationsjahr: | Januar 2007 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Acta Materialia |
| Jahrgang/Volume einer Zeitschrift: | 55 |
| (Heft-)Nummer: | 2 |
| DOI: | 10.1016/j.actamat.2006.08.057 |
| Kurzbeschreibung (Abstract): | The development of new piezoelectric materials is often hampered by high electrical conductivity or coercive fields, which make it virtually impossible to produce sufficient levels of electric polarization by application of an external electric field. As a remedy, we utilize a new poling method: stress-assisted poling, which is based on the simultaneous application of electrical field and mechanical stress. The method is demonstrated on a commercial ferroelectric (PZT PIC 151). The poling field E* where most domain switching occurs is reduced by about 40% if a radial compressive stress of about 90 MPa is applied to the sample. The piezoelectric coefficient d33 is determined for different load magnitudes. Variations of both remnant and maximum polarization are determined with respect to the magnitude of compressive radial stress. |
| Freie Schlagworte: | Radial stress; Poling field; Polarisation; Piezoelectric coefficient |
| 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: | 18 Mai 2011 15:19 |
| Letzte Änderung: | 05 Mär 2013 09:47 |
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