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Abstract
Polarization behavior in lead titanate, prepared by the two stage sintering approach, is determined by using the dilatometer thermal expansion data. We report the temperature-dependent measurements of the strain, the magnitude of polarization, √PS 2, deduced from the sets of data gathered from the thermal expansion values. The calculated values of the electric polarization, PS, on the two stage sintered lead titanate ceramics show the simple approach to determine the temperature dependence of the polarization below and around the transition temperature. Various aspects of our understanding of the polarization behavior and other effects in the ferroelectric are discussed.
ACKNOWLEDGMENT
We thank the Thailand Research Fund (TRF), the Graduate School of Chiang Mai University and NSF Relaxor program, Materials Research Laboratory and MRI of Penn State University for all the support during this work.