A comparative study by mechanical activation and conventional processes of BaTi0.95W0.05O3 ferroelectric ceramic

Abstract

BaTi0.95W0.05O3 is synthesized by both mechanical activation process and conventional solid-state reaction technique for comparative study. The prepared sample is characterized by XRD and SEM. There is proper formation of perovskite structure in BTW from both of the methods confirmed by XRD. Scanning electron microscopy (SEM) depicts that the micro-grains obtained by the mechanical activation method had comparatively fine structure compared to that of the conventional solid-state process. The mechanically activated samples display enhanced electrical properties showing a high value of the dielectric constant and a low value of the dielectric loss. The remnant polarization (Pr) value and d33 values were also high in samples synthesized by the mechanical method.