Effect of ZrO2 Source Variations on PbZrO3 - PbTiO3 Piezoelectric Properties

摘要

ZrO2, derived from three zircon source minerals and many process variations, was physically and chemically analyzed. The impact of the ZrO2 variations obtained was then evaluated in both dry and wet blended lead zirconate-lead titanate, high drive type piezoelectric compositions. Proper purification and blending of the ZrO2 was shown to yield PZ-PT material with uniform low and high drive piezoelectric behavior. Single precipitated ZrO2 and dry blending were shown to be highly variable processes. Also, solution ceramic approaches produced a higher density PZ-PT. (Author)