Improvement of the Condition for the Preparation of 0-3 PZN-PZT/PVDF Piezoelectric Composites

The piezoelectric PZN-PZT powders were prepared by solid state sintering technique. PZN-PZT/PVDF 0-3 composites were fabricated by dispersing PZN-PZT powders into the PVDF polymer matrix. The effects of the process valiable and the content of PZN-PZT powders on the piezoelectric properties of the composites were investigated. The results indicate that solution mixing method was more suitable to prepare the PZN-PZT/PVDF composites which have good piezoelectricity. The highest d33 attains 35.9 pC·N-1, was obtained to the composites which contain 90wt% ceramic powders and was polarized under 6kV·mm-1 for 20 min at 110℃.