As new compositions of single crystal relaxor ferroelectrics are developed, the full thermo-electro-mechanical characterization of each composition and the limitations on linear behavior imposed by field driven phase transformations requires a highly specialized set of experiments. This characterization currently requires two crystal cuts which must each be subjected to five electric field-electric displacement cycles at different stress levels, five stress-strain cycles at different electric field levels, and this process must be repeated at five temperatures. In this document, a new approach to characterizing the linear behavior and phase transformation behavior is proposed based on a combination of a work-energy based model of the driving forces for the phase transformation together with data measured through electrical loading while measuring strain and electric displacement, and a measurement of mechanical compliance.
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ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 19–21, 2012
Stone Mountain, Georgia, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-4509-7
PROCEEDINGS PAPER
Characterization of Ferroelectric Single Crystals With Field Induced Phase Transformations
John A. Gallagher,
John A. Gallagher
University of California, Los Angeles, Los Angeles, CA
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Christopher S. Lynch
Christopher S. Lynch
University of California, Los Angeles, Los Angeles, CA
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John A. Gallagher
University of California, Los Angeles, Los Angeles, CA
Christopher S. Lynch
University of California, Los Angeles, Los Angeles, CA
Paper No:
SMASIS2012-8126, pp. 157-161; 5 pages
Published Online:
July 24, 2013
Citation
Gallagher, JA, & Lynch, CS. "Characterization of Ferroelectric Single Crystals With Field Induced Phase Transformations." Proceedings of the ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring. Stone Mountain, Georgia, USA. September 19–21, 2012. pp. 157-161. ASME. https://doi.org/10.1115/SMASIS2012-8126
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