Verfahren zur Herstellung von Pulver für Blei-Perovskit-Keramik.

摘要

A process for producing a powder material for niobium-containing lead perovskite ceramics represented by the general formula: PbAxNb1-xO3, wherein X = 1/2 or 1/3 and A represents at least one element selected from Fe, Co, Cr, Ni, Mn, Mg, Zn, Cd, Zr, In, Cu and Hf. A dried mixture of a sol or suspension of a hydroxide of A (which has a lower activity than Pb) and a niobic acid sol is first calcined A Pb compound is then added to the mixture and the resultant mixture is calcined again.