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Performance characterization and failure analysis for laminar PZT components

: Gall, M.; Thielicke, B.

Borgmann, H. ; Wirtschaftsförderung Bremen GmbH -WFB-; Hanseatische Veranstaltungs GmbH -HVG-, Geschäftsbereich Messe Bremen, Bremen:
ACTUATOR 2010, 12th International Conference on New Actuators & 6th International Exhibition on Smart Actuators and Drive Systems. Conference Proceedings : 14. - 16. Juni 2010, Bremen, Germany
Bremen: WFB, 2010
ISBN: 978-3-933339-13-3
ISBN: 978-3-933339-12-6
International Conference on New Actuators (ACTUATOR) <12, 2010, Bremen>
International Exhibition on Smart Actuators and Drive Systems <6, 2010, Bremen>
Conference Paper
Fraunhofer IWM ()

A general procedure for investigating the loading limits, damage behavior and reliability of laminar piezoceramic transducers is proposed. The characterization of the sensor and actuator performance and a quasistatic and cyclic testing program under mechanical and electrical loading and under various environmental conditions provide a data basis for the identification of damage mechanisms and for the assessment of long-term integrity. Numerical simulation is used both to predict performance and to contribute to a better understanding of the experimental results by studying the local loading conditions in a component under various boundary conditions. The method is exemplified on an extended study on foil-based PZT patches for which a temperature dependant lifetime diagram was derived and on miniature piezoelectric bending actuators developed and tested for use in an implantable peristaltic micropump.