BCZT ceramics were prepared through a solid-state reaction process. Analytically pure BaCO3, CaCO3, ZrO2, and TiO2 were used as starting materials. These compounds were weighed according to stoichiometric ratios, mixed in deionized water, ball milled for 4 h, and then dried in an oven. The dried mixtures were calcined at 1300 °C for 4 h in air