Synthesis of Nb Doped Lead Zirconate Titanate by Chemical Methods

This paper shows the results of different chemical syntheses: sol‐gel, spray‐drying, coprecipitation, involved in the production of niobium doped lead zirconate titanate ceramic materials. The formation of pure perovskitic phase at temperatures 300–400 °C lower than the traditional mixed oxide method confirmed the potentiality of the spray‐drying and sol‐gel as simple synthesis processes to produce chemically homogeneous and very reactive powders. The thermal and structural evolution of precursor powders was investigated through TG/DTA, IR and XRD analyses. The microstructures of powders and sintered bodies were presented and related to the synthesis process.