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Degradation of lead-zirconate-titanate ceramics under different dc loads

Balke, Nina and Granzow, Torsten and Rödel, Jürgen :
Degradation of lead-zirconate-titanate ceramics under different dc loads.
[Online-Edition: http://dx.doi.org/10.1063/1.3126707]
In: Journal of Applied Physics, 105 (10) pp. 104105-1. ISSN 00218979
[Article] , (2009)
Note:

SFB 595 D1

Official URL: http://dx.doi.org/10.1063/1.3126707

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.

Item Type: Article
Erschienen: 2009
Creators: Balke, Nina and Granzow, Torsten and Rödel, Jürgen
Title: Degradation of lead-zirconate-titanate ceramics under different dc loads
Language: English
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.

Journal or Publication Title: Journal of Applied Physics
Volume: 105
Number: 10
Uncontrolled Keywords: dielectric hysteresis; dielectric polarisation; domain boundaries; electric domains; fatigue; lead compounds; permittivity; piezoceramics; piezoelectricity
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > D - Component properties > Subproject D1: Mesoscopic and macroscopic fatigue in doped ferroelectric ceramics
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > D - Component properties
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 18 May 2011 15:20
Official URL: http://dx.doi.org/10.1063/1.3126707
Additional Information:

SFB 595 D1

Identification Number: doi:10.1063/1.3126707
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