Electroactive properties of flexible piezoelectric composites
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Date
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
Journal ISSN
Volume Title
Publisher
ABM, ABC, ABPol
Type
Article
Access right
Acesso aberto
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Abstract
A flexible piezoelectric composite with 0-3 connectivity, made from Lead Zirconate Titanate (PZT) powder and vegetable-based polyurethane (PU), was doped with small amount of semiconductor powder. As a result a composite with 0-0-3 connectivity was obtained. The nature of absorption and steady state electrical conduction and the dielectric behaviour have been studied for this ceramic/polymer composite. The dielectric loss processes of the composite were observed to be dominated by those the polymer. Adding a semiconductor phase in the composite the electrical conductivity can be controlled and a continuous electric flux path could be created between the PZT grains. This composite may be poled at low voltage and in shorter time compared with composites without a conductive phase.
Description
Keywords
sensors, piezoelectricity, pyroelectricity, composites, complex permittivity, discharge current
Language
English
Citation
Materials Research. São Carlos, SP, Brazil: ABM, ABC, ABPol, v. 4, n. 3, p. 201-204, 2001.
