Eur. Phys. J. Appl. Phys.
Volume 54, Number 2, May 2011
|Number of page(s)||6|
|Section||Imaging, Microscopy and Spectroscopy|
|Published online||18 May 2011|
Dielectric, piezoelectric and electrical study of 0.65PMN-0.20PZT-0.15PT relaxor ceramic
Department of Physics, Shahid Beheshti University, Tehran, Iran
Revised: 31 January 2011
Accepted: 8 February 2011
Published online: 18 May 2011
The dielectric, piezoelectric and electrical properties of relaxor ferroelectric 0.65PMN-0.20PZT-0.15PT ceramic as a function of sintering temperatures was investigated. X-ray diffraction shows that with increasing temperature from 700 °C to 800 °C the pyrochlore unwanted phase reduces and at 850 °C the single phase of perovskite be formed. The studies and reviews reveal that the outstanding electrical properties are obtained with this composition near the morphotropic phase boundary (MPB). P-E hysteresis loops emphasize that the synthesis optimum temperature is 1250 °C and observed that the best temperature that led to improved properties of dielectric constant, polarization and piezoelectric coefficients is this temperature.
© EDP Sciences, 2011
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