Study of reaction sequences for formation of solid solution: 0,48 PbZrO3-0,47 PbTiO3-0,05 Pb (Cr1/5, Zn1/5, Sb 3/5) O3

Abstract

To study the reaction sequences of formation of solid solution zirconate-lead titanate (PZT) in this work, we took into account the effect of adding oxide dopants on the progress of the reaction, so we added oxides ZnO, Cr₂O₃, Sb₂O₃ to our material composition in small quantities so that the solid solution must verify the conditions of the perovskite structure. The results of the X-ray diffraction and thermal analysis allowed us to suggest a reaction mechanism. It is important to note that the substitution of a low concentration of ions forming the perovskite structure PZT (Pb²⁺, Zr⁴⁺ et Ti⁴⁺) by other ions (Zn²⁺, Cr³⁺ et Sb⁺⁵ in our study) alters the reaction sequences training of the solid solution PZT and especially the formation of intermediate phase.

Keywords: PZT / Calcination / TGA / DTA / RX / Piezoelectric Ceramics