TU Darmstadt / ULB / TUbiblio

Bipolar Fatigue Caused by Field Screening in Pb(Zr,Ti)O3Ceramics

Balke, Nina and Kungl, Hans and Granzow, Torsten and Lupascu, Doru C. and Hoffmann, Michael J. and Rödel, Jürgen (2007):
Bipolar Fatigue Caused by Field Screening in Pb(Zr,Ti)O3Ceramics.
In: Journal of the American Ceramic Society, pp. 070922001254005-3874, 0, (0), ISSN 0002-7820, [Online-Edition: http://dx.doi.org/10.1111/j.1551-2916.2007.02041.x],
[Article]

Abstract

Bipolar cycling of lead zirconate titanate ceramics can lead to massive material damage in regions close to the electrode. The damaged region can be identified by color changes, and the microstructure in this region shows signs of interface melting. This damaged region can screen the sample volume from the applied voltages and reduced fields are applied to the undamaged part of the sample. This has two effects. The first one is that the bulk is effectively subjected to smaller fields, but the measured parameters are assigned to the applied field, yielding apparent fatigue curves. The second effect is that with further cycling, field screening protects the bulk of the sample from fatigue due to the reduced effective fields. If the damaged region is mechanically removed and the ferroelectric hystereses are measured again, nearly unfatigued parameters are obtained.

Item Type: Article
Erschienen: 2007
Creators: Balke, Nina and Kungl, Hans and Granzow, Torsten and Lupascu, Doru C. and Hoffmann, Michael J. and Rödel, Jürgen
Title: Bipolar Fatigue Caused by Field Screening in Pb(Zr,Ti)O3Ceramics
Language: English
Abstract:

Bipolar cycling of lead zirconate titanate ceramics can lead to massive material damage in regions close to the electrode. The damaged region can be identified by color changes, and the microstructure in this region shows signs of interface melting. This damaged region can screen the sample volume from the applied voltages and reduced fields are applied to the undamaged part of the sample. This has two effects. The first one is that the bulk is effectively subjected to smaller fields, but the measured parameters are assigned to the applied field, yielding apparent fatigue curves. The second effect is that with further cycling, field screening protects the bulk of the sample from fatigue due to the reduced effective fields. If the damaged region is mechanically removed and the ferroelectric hystereses are measured again, nearly unfatigued parameters are obtained.

Journal or Publication Title: Journal of the American Ceramic Society
Volume: 0
Number: 0
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 > A - Synthesis > Subproject A2: Manufacturing and characterization of PZT-ceramics with defined defect chemistry
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 > A - Synthesis
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/10.1111/j.1551-2916.2007.02041.x
Additional Information:

SFB 595 Cooperation A2, D1

Identification Number: doi:10.1111/j.1551-2916.2007.02041.x
Export:

Optionen (nur für Redakteure)

View Item View Item