Preparation of well-defined colloidal barium titanate crystals by the controlled double-jet precipitation
作者： Y-S. Her , E. Matijevi , M.C. Chon
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摘要: A new method for the preparation of well-defined colloidal barium titanate (BaTiO3) crystals by controlled double-jet precipitation (CDJP) technique is described. The process extremely fast and requires a low temperature (<100 °C). reactants, titanium salts, can be used in high concentrations yield quantitative. stoichiometry BaTiO3 particles precisely reproducibly. effects composition reactant solutions, flow rates, reaction time, addition polymers on were investigated. powders, produced CDJP technique, sinter to density at as 1200 °C exhibit relative dielectric constant 5000 20 °C, which highest value reported literature. grain sizes sintered samples are small uniform, ranging between 1 2 μm.
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