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Mixed electromechanical fatigue in lead zirconate titanate

Lupascu, Doru C. and Aulbach, Emil and Rödel, Jürgen (2003):
Mixed electromechanical fatigue in lead zirconate titanate.
In: Journal of Applied Physics, pp. 5551-5556, 93, (9), ISSN 00218979,
[Online-Edition: http://dx.doi.org/10.1063/1.1563841],
[Article]

Abstract

The effects of mixed fatigue by phase-shifted electrical and mechanical loading on the material properties of a commercial lead–zirconate–titanate ceramic are presented. Both the loss in switchable polarization and strain are more pronounced than in purely unipolar electric, but much less than in bipolar electric fatigue. Fatigue-induced offsets are described. Point defect motion and point defect agglomeration are discussed as sources of fatigue in ferroelectrics. Fatigue microcracking occurs at the interface to the load pistons irrespective of Poisson’s ratio of the piston.

Item Type: Article
Erschienen: 2003
Creators: Lupascu, Doru C. and Aulbach, Emil and Rödel, Jürgen
Title: Mixed electromechanical fatigue in lead zirconate titanate
Language: English
Abstract:

The effects of mixed fatigue by phase-shifted electrical and mechanical loading on the material properties of a commercial lead–zirconate–titanate ceramic are presented. Both the loss in switchable polarization and strain are more pronounced than in purely unipolar electric, but much less than in bipolar electric fatigue. Fatigue-induced offsets are described. Point defect motion and point defect agglomeration are discussed as sources of fatigue in ferroelectrics. Fatigue microcracking occurs at the interface to the load pistons irrespective of Poisson’s ratio of the piston.

Journal or Publication Title: Journal of Applied Physics
Volume: 93
Number: 9
Uncontrolled Keywords: lead compounds, ferroelectric ceramics, fatigue cracks, fatigue, microcracks, dielectric polarisation, ferroelectric switching, electrostriction, dielectric hysteresis, Poisson ratio, point defects
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation > Subproject B5: Model experiments about interactions between ferroelectric domains with point defects and their agglomerates
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 15 Aug 2011 11:56
Official URL: http://dx.doi.org/10.1063/1.1563841
Additional Information:

SFB 595 B5

Identification Number: doi:10.1063/1.1563841
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