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Influence of radial stress on the poling behaviour of lead zirconate titanate ceramics

Kounga Njiwa, Alain Brice and Aulbach, Emil and Granzow, Torsten and Rödel, Jürgen (2007):
Influence of radial stress on the poling behaviour of lead zirconate titanate ceramics.
55, In: Acta Materialia, (2), pp. 675-680, ISSN 13596454, [Online-Edition: http://dx.doi.org/10.1016/j.actamat.2006.08.057],
[Article]

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.

Item Type: Article
Erschienen: 2007
Creators: Kounga Njiwa, Alain Brice and Aulbach, Emil and Granzow, Torsten and Rödel, Jürgen
Title: Influence of radial stress on the poling behaviour of lead zirconate titanate ceramics
Language: English
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.

Journal or Publication Title: Acta Materialia
Volume: 55
Number: 2
Uncontrolled Keywords: Radial stress; Poling field; Polarisation; Piezoelectric coefficient
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 18 May 2011 15:19
Official URL: http://dx.doi.org/10.1016/j.actamat.2006.08.057
Identification Number: doi:10.1016/j.actamat.2006.08.057
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