DIELECTRIC AND PIEZOELECTRIC PROPERTIES OF PBTIO3 COPOLYMER 0-3 COMPOSITE

The purpose of this work is to fabricate the flexible composite with 0-3 connectivity consisting in a polymer matrix (70/30 mol% copolymer of vinylidene fluoride and trifluoroethylene) loaded with ceramic powder (PbTiO3) for the use in the hydrophones sensors, and to study their dielectric, and piezoelectric properties in function of the temperature and the volume fraction of ceramic. After elaboration of the piezoelectric ceramic-copolymer composite materials, we have used different mixture formulae for the calculation of the dielectric parameters.