The technological process of coprecipitation for preparing PZT piezoelectric ceramic powders is studied through perpendicular experiments.SEM and electric energy spectrum of powders were observed.The results reveal the fact that the type of precipitation agent has greatest influence to the grain size and shape, but the adding methods have no obvious influence.The best technological parameters of preparing PZT power are chosen by perpendicular experiments.It was proved that coprecipitation for preparing PZT ...