Preparation of Pb(x)Ba(1-x)TiO3 and the Effect of the Composition and the Size ofthe Crystallite on the Crystal Phase

摘要

Barium lead titanate powder (99.9% pure) was prepared from barium lead titanyloxalate, which was previously prepared by reacting high-purity ammonium titanyl oxalate with barium and lead acetate. The critical factors in preparing the barium lead titanyl oxalate were pH, the concentration of the solution and the aging time. The critical crystallite size of BaTiO3 powder from the cubic to the tetragonal phase is around 1 microns Pb0.3Ba0.7Ti)3 powder with an average size of 0.057 microns showed the tetragonal phase. (JS)