Phase formation and dielectric properties of (Pb0.925Ba0.075)(Zr1− x Ti x )O3 ceramics prepared by the solid-state reaction method

Lead barium zirconate titanate [(Pb_0.925Ba_0.075)(Zr_{1? x} Ti _x )O₃] ceramics with 0?≤?x?≤?1 were prepared by the solid-state reaction method. The calcination temperatures were between 800°C and 1000°C for 1?h and the sintering temperature was 1200°C for 3?h. It was found that the structure of the calcined powders and sintered pellets was in an orthorhombic phase for x?=?0; a rhombohedral phase for x?=?0.25 and a tetragonal phase for 0.5?≤?x?≤?1. The c/a ratio increased with an increase in the x content. The average particle size and density slightly decreased with an increase in the x content, while the average grain size, linear shrinkage, and Curie temperature increased when the x content increased.