Balke, Nina ; Granzow, Torsten ; Rödel, Jürgen (2009):
Degradation of lead-zirconate-titanate ceramics under different dc loads.
In: Journal of Applied Physics, 105 (10), pp. 104105-1. ISSN 00218979,
[Article]
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 ; Granzow, Torsten ; 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 of the journal: | 105 |
| Issue 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 |
| URL / URN: | http://dx.doi.org/10.1063/1.3126707 |
| Additional Information: | SFB 595 D1 |
| Identification Number: | doi:10.1063/1.3126707 |
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