Abstract
Abstract Homogeneous and stoichiometric lanthanum-modified lead zirconium titanate (Pb 0.92 La 0.08 )(Zr 0.65 Ti 0.35 )O 3 (PLZT) particles with a nanometer size of 20–40 nm have been prepared by the citrate route. The solubility isotherms for individual metal-citric acid-H 2 O systems at 25 °C were calculated to predict the optimum pH condition, which was found to be 6.5 for preparing pure and stable citrate complexes. A monophasic PLZT powder consisting of monodispersive and nanometer-sized particles could be obtained by thermal decomposition of the optimally prepared citrate precursor at a considerably low temperature of 800 °C. Details of crystallization process and particle characteristics of the citrate-derived PLZT powder have been described along with the preliminary results on the sinterability.
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