Table of Contents
Smart Materials Research
Volume 2013, Article ID 147524, 9 pages
http://dx.doi.org/10.1155/2013/147524
Research Article

Synthesis, Structural, and Electrical Properties of Pure PbTiO3 Ferroelectric Ceramics

1Department of Physics, Dayanand Science College, Latur 413 531, India
2Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431 004, India

Received 20 February 2013; Accepted 19 March 2013

Academic Editor: Li Tao

Copyright © 2013 Vijendra A. Chaudhari and Govind K. Bichile. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Single-phase polycrystalline samples of lead titanate with perovskite structure have been synthesized using solid-state reaction technique. The processing parameters have been optimized to obtain phase pure, dense, crack-free, and homogeneous samples. The sintering behavior of PT-powders has been investigated using X-ray diffraction patterns. The X-ray powder diffraction data have been analyzed to confirm the phase formation and phase purity, to obtain unit cell parameters and unit cell volume. The porosity of the samples has been obtained through X-ray density and bulk density. The average particle sizes of the phase pure samples were obtained from the X-ray peak width using Scherrer’s formula. The influence of sintering temperature and time on the microstructure of samples has also been studied by carrying out SEM investigations. The notable feature of this microstructure study shows that the samples sintered at 900°C for 12 hours possess a fairly uniform grain distribution. The electrical behavior (complex impedance Z*, complex permittivity ε*, etc.) of the samples sintered at 900°C for 12 hours has been studied by complex impedance spectroscopy. The temperature variation of real permittivity gives evidence of the ferroelectric phase transition as well as of the relaxation behavior.