Effects of Mechanical Activation of Precursors in The Synthesis of Ca-Doped BaTiO3 Via Conventional Solid State Reaction Method

The synthesis of pure ceramics with high degree of crystallinity is a major challenge especially in fabricating electronic devices. In this study, Ca-doped BaTiO3 with minimal impurity was successfully synthesized using conventional solid-state reaction method. The effect of mechanical activation of the precursors in the crystallinity and porosity of the material was investigated. For samples sintered at 1000 degrees C, the crystallite size slightly decreased from 5.410 angstrom to 5.288 angstrom which is equivalent to 2.31% reduction upon activation of precursors. At sintering temperature of 850 degrees C, the porosity increased from 35.985% to 39.217% with mechanical activation of the precursor powders while at 1000 degrees C, it jumped from 54.803% to 57.084%.