Relaxor-PT single crystals for various applications

Shujun Zhang, Fei Li, Thomas R. Shrout, Jun Luo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Piezoelectric materials lie at the heart of electromechanical transducers. Applications include actuators, ultrasonic imaging and high intensity focused ultrasound (HIFU), underwater sonar, non-destructive evaluation (NDE), resonators, pressure sensors and accelerometers to name a few. In this work, we report on recent developments of the shear properties of Relaxor-PT single crystals with different phases and orientations, as a function of temperature and applied fields. Specifically, the piezoelectric shear d 24 coefficient in orthorhombic crystals was found to exhibit nearly temperature independent behavior, while acceptor doped relaxor-PT crystals exhibited improved field stability, due to the enhanced coercive fields and/or internal bias. Furthermore, the newly reported face shear vibration mode was studied, showing high ac drive field stability up to their respective coercive field, with high mechanical quality factors, being on the order of 100-300.

Original languageEnglish (US)
Title of host publicationProc. of 2012 21st IEEE International Symposium on Applications of Ferroelectrics Held Jointly with 11th IEEE European Conference on the Applications of Polar Dielectrics and IEEE, ISAF/ECAPD/PFM 2012
DOIs
StatePublished - Oct 31 2012
Event2012 21st IEEE Int. Symp. on Applications of Ferroelectrics Held with 11th IEEE European Conf. on Applications of Polar Dielectrics and 4th IEEE Int. Symp on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials, ISAF/ECAPD/PFM - Aveiro, Portugal
Duration: Jul 9 2012Jul 13 2012

Publication series

NameProceedings of 2012 21st IEEE Int. Symp. on Applications of Ferroelectrics held jointly with 11th IEEE European Conference on the Applications of Polar Dielectrics and IEEE PFM, ISAF/ECAPD/PFM 2012

Other

Other2012 21st IEEE Int. Symp. on Applications of Ferroelectrics Held with 11th IEEE European Conf. on Applications of Polar Dielectrics and 4th IEEE Int. Symp on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials, ISAF/ECAPD/PFM
CountryPortugal
CityAveiro
Period7/9/127/13/12

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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