Studying The Electrical Properties Of Piezoelectric Material (PZT) Prepared By Organic Acid Precursor Method
Dr. Sabah M. Ali Ridha , Abdul karim Ziedan
Abstract

The compound of piezoelectric nanopowders with a general system PbZrxTi1-xO3 (PZT) at different concentrations (x =0.3, 0.5 and 0.7) were prepared by using organic acid precursor method. Disc shaped samples of each concentrations were sintered for two hours at temperatures in the range of (700-1100ºC). The perovskite structure was determined by X-ray diffraction spectroscopy, and the dielectric properties were investigated for all samples. The dielectric studies of the compounds as function of temperature in the range (room temperature to 450ºC) at frequency 1 KHz shows that the compounds undergo a phase transition of diffuse type from tetragonal phase to cubic phase. Maximum values of electrical properties such as (Dielectric constant 1200, loss factor 1.05) were found for PZ0.5 T0.5 compounds, and these properties decrease with increasing of (Zr or Ti) additives. The effect of frequency in range (103 -105 Hz) on electrical properties is low with stability in dielectric constant and dielectric loss.
Keywords: PZT ceramics, Dielectric properties, Piezoelectric.