Accession Number : ADA195789

Title :   Polymer - Ceramic Composites.

Descriptive Note : Periodic rept. no. 4,

Corporate Author : UNIVERSITY COLL OF NORTH WALES BANGOR SCHOOL OF ELECTRONIC ENGINEERING SCIEN CE

Personal Author(s) : Das-Gupta, Dilip K

PDF Url : ADA195789

Report Date : Apr 1988

Pagination or Media Count : 9

Abstract : Composites of Lead Zirconate Titanate(PZT)and polyvinylidene fluoride(PVDF)were prepared and its electrical and dielectric behaviours were analysed. PZT phase has been suggested to have a significant contribution on the electrical conduction and low frequency dielectric loss at high temperatures. The pyroelectric behaviour obtained from composites of different materials may suggest that the elastic stiffness and thermal expansion of the polymer matrix were among the factors contributing to the measured pyroelectric activity. A higher pyroelectric figure of merit as compared to PZT has been achieved in one of the PZT/PVDF composites. Keywords: Steady state; Composite materials; Phase studies; Foreign technology. (jes)

Descriptors :   *CERAMIC MATERIALS, *COMPOSITE MATERIALS, DIELECTRICS, ELASTIC PROPERTIES, ELECTRICAL CONDUCTIVITY, FOREIGN TECHNOLOGY, HIGH TEMPERATURE, LOSSES, LOW FREQUENCY, MATRIX MATERIALS, PHASE STUDIES, POLYMERS, PYROELECTRICITY, STEADY STATE, STIFFNESS, THERMAL EXPANSION

Subject Categories : Laminates and Composite Materials
      Ceramics, Refractories and Glass
      Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE