| abstract |
(57) [Abstract] [Purpose] To provide a method for producing a lead-containing composite oxide, which is capable of producing a fine powder having high surface activity, easy sintering, and low cost. [Structure] General formula (Pb (M 1/3 Nb 2/3 ) X Zr Y T i Z ) O 3 {M is at least one divalent metal element, 0 < X ≦ 0.5, 0 ≦ Y <1, 0 <Z ≦ 1, where X + Y + Z In the method for producing the lead-containing composite oxide powder represented by the formula (1), an acidic solution containing each salt of Pb, M, Nb, Ti and Zr is mixed with a water-alcohol mixed solution containing oxalic acid, and The pH of the component element-containing slurry is adjusted to 7 to 9 with a basic solution to generate a precursor precipitate of the oxide, and the precursor precipitate is thermally decomposed to produce a lead-containing composite oxide. |