Title :
Electrical conductivity and pyro-electric measurements on PZT: PVDF composites
Author :
Tripathi, Anand ; Tripathi, Anita ; Pillai, P.K.C.
Author_Institution :
Dept. of Phys., Indian Inst. of Technol., New Delhi, India
Abstract :
PZT:PVDF (polyvinylidene fluoride) composites were prepared in different weight ratios. The electrical conductivity of these samples was measured as a function of temperature and field. It was found that the conductivity increased from 10-14 (ohm cm)-1 to 10-11 (ohm cm)-1 as the percentage of PZT in the composites was increased from 70% to 90% by weight. The pyroelectric current and dielectric constant of these composites were also studied. The pyroelectric coefficient increased from 40 to 76 n Coul/cm2 /°C as PZT was increased from 70% to 90% by weight in the composites at 50°C
Keywords :
composite materials; electrets; electrical conductivity of solids; lead compounds; permittivity; polymers; pyroelectricity; PZT; PZT: PVDF composites; PbZrO3TiO3; dielectric constant; electret; electrical conductivity; polyvinylidene fluoride; pyroelectric current; Bioceramics; Conductivity measurement; Current measurement; Dielectric measurements; Electric variables measurement; Polymers; Power measurement; Solvents; Temperature dependence; Voltage;
Conference_Titel :
Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)
Conference_Location :
Berlin
Print_ISBN :
0-7803-0112-9
DOI :
10.1109/ISE.1991.167263
