PREPARATION METHOD FOR LOW-TEMPERATURE-SINTERABLE -BASED PEROVSKITE DIELECTRIC POWDER

摘要

The present invention is to mix PbO powder and Nb ₂ O ₅ powder; A solution in which soluble Mg ²⁺ is dissolved is added to the mixed powder slurry; Thereafter removing the solvent from the solution to obtain a PMN (Pb (Mg _1/3 Nb _2/3 ) O ₃ ) precursor; Calcining the precursor powder at 800-950 ° C. and sintering the obtained powder; A method for producing a perovskite-based PMN dielectric comprising: a PbO powder and an Nb ₂ O ₅ powder; A solution in which soluble Mg ²⁺ is dissolved is added to the mixed powder slurry; Thereafter removing the solvent from the solution to obtain a PMN (Pb (Mg _1/3 Nb _2/3 ) O ₃ ) precursor; Mixing PbTiO ₃ powder with the PMN precursor and drying to obtain PMN-PT (0.9Pb (Mg _1/3 Nb _2/3 ) O ₃ -0.1PbTiO ₃ ) precursor; Calcining the precursor powder at 750 ° -950 ° C and sintering the powder obtained; And PbO powder, Nb ₂ O ₅ powder and TiO ₂ powder; A solution in which soluble Mg ²⁺ is dissolved is added to the mixed powder slurry; Thereafter removing the solvent from the solution to obtain a PMN-PT precursor; Calcining the precursor powder at 800 ° -950 ° C. and sintering the obtained powder; Provided is a method for producing a perovskite-based PMN-PT dielectric.