Structural and Dielectric Characterizations of Pb(Zrx,Ti1-x)O3 Ceramics

PbTiO3 (PT) and Pb(Zrx ,Ti1-x)O3 (PZTx) powders have been prepared by the conventional solid state reaction, and characterized by X-ray diffraction (XRD), Raman and Fourier transform infrared techniques. The microstructure of the samples was also investigated using Scanning electron microscopy (SEM). XRD spectra revealed a behaviour in conformity with the phase diagram established by Jaffe et al. Dielectric analysis showed the presence of an anomaly in the ferroelectric phase, located at about 275°C. Few studies have reported the existence of such anomalies, which we have interpreted on the basis of structural characterization.