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Title: Thermal expansion properties of PMN-PT ceramics
Authors: Rewadee Wongmaneerung
Ruyan Guo
Amar Bhalla
Rattikorn Yimnirun
Supon Ananta
Keywords: Engineering
Materials Science
Issue Date: 11-Aug-2008
Abstract: Thermal expansion properties of (1 - x)PMN-xPT ceramics were determined in the temperature range of approximately -150 to +550 °C by dilatometer thermal expansion measurement. We reported the temperature-dependent measurements of the strain, thermal expansion coefficient and the magnitude of polarization (Pd). The anomaly behaviors were observed at Burns temperature (Td). From the experimental data, it appeared that far above the ferroelectric phase transition temperature, up to Td, these materials possessed a local randomly oriented polarization Pd. Various aspects of understanding the polarization behavior and other effects in this ferroelectric system were also examined and discussed. © 2007 Elsevier B.V. All rights reserved.
ISSN: 09258388
Appears in Collections:CMUL: Journal Articles

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