Structural and piezoelectric properties of (1 - X)PZT-xBFN (x = 0.1 - 0.2) solid solution

Abstract

The structural, dielectric and piezoelectric properties of (1 - x)PbZr 0.52Ti0.48O3-xBaFe0.5Nb 0.5O3 ceramic system with the composition near the morphotropic phase boundary were investigated as a function of the BaFe 0.5Nb0.5O3 content by X-ray diffraction (XRD), dielectric measurement and piezoelectric measurement techniques. Studies were performed on the samples prepared by solid state reaction for x = 0.10, 0.12, 0.14, 0.16, 0.18 and 0.20. The XRD analysis demonstrated that with increasing BFN content in (1 - x)PZT-xBFN, the structural change occurred from tetragonal to the mixture of tetragonal and cubic phase. Changes in the dielectric behavior and piezoelectric properties were found to relate with these structural changes depending on the BFN contents. © 2008 World Scientific Publishing Company.