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 powder s are currently used in the fabrication of electronic ceramic componen ts. 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, l ike mean particle size were determined. Polyacrylamide as an additive was found to be effective for the synthesis of the powders with a simp le mode of particle-size distribution.