Shoichi Iwaya

Hydrothermal synthesis of fine perovskite PbTiO3 powders with a simple mode of size distribution

Perovskite phase PbTiO3 powders were hydrothermally synthesized so as to be fine and homogeneous in physico-chemical properties. Such powders are currently used in the fabrication of electronic ceramic components. The powders were successfully synthesized using a strong alkali as catalyst. Borderline synthesizing conditions, such as temperature and time, were established and their effects on geometrical properties, like mean particle size were determined. Polyacrylamide as an additive was found to be effective for the synthesis of the powders with a simple mode of particle-size distribution.