Mechanical strain and piezoelectric properties of PZT stacks related to semi-bipolar electric cyclic fatigue

Hong Wang, Hua Tay Lin, Thomas A. Cooper, Andrew A. Wereszczak

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

PZT Stacks that have an inter-digital internal electrode configuration were tested to more than 108 cycles. A 100-Hz semi-bipolar sine wave with a field range of +4.5/-0.9 kV/mm was used in cycling with a concurrently applied 20 MPa preload. Significant reductions in mechanical strain and piezoelectric coefficients were observed during the cycling depending on the measuring condition. Extensive surface discharges were also observed. These surface events, as well as related breakdown, resulted in the erosion of external electrode and the outcrop of internal electrode, which partially accounted for the observed reductions. The results from this study demonstrate the feasibility of using a semi-bipolar mode to drive a PZT stack under a mechanical preload and illustrate the potential fatigue performance of the stack in service.

Original languageEnglish
Title of host publicationAdvances in Electronic Ceramics II - A Collection of Papers Presented at the 33rd International Conference on Advanced Ceramics and Composites
Pages67-77
Number of pages11
Edition9
StatePublished - 2010
EventAdvances in Electronic Ceramics II - 33rd International Conference on Advanced Ceramics and Composites - Daytona Beach, FL, United States
Duration: Jan 18 2009Jan 23 2009

Publication series

NameCeramic Engineering and Science Proceedings
Number9
Volume30
ISSN (Print)0196-6219

Conference

ConferenceAdvances in Electronic Ceramics II - 33rd International Conference on Advanced Ceramics and Composites
Country/TerritoryUnited States
CityDaytona Beach, FL
Period01/18/0901/23/09

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