| abstract |
Aqueous titanium tetrachloride solution and aqueous zirconium nitrate solution of components except zirconium, for forming lead zirconate-tinatate in which part of the lead is substituted for any of the lanthanide elements are mixed, and the mixture is hydrolyzed to form sol. This sol is cleaned, dried, and calcined at 1100 DEG C. to form modified powder. The compounds of the remaining component of lead zirconate-titanate, such as TiO2 powder, PbO powder and Sm2O3 powder, are mixed with the modified powder, and the resultant mixture is calcined at 750 DEG C. for 1 hour to produce the lead zirconate-titanate. |