Electrical Response of β-PVDF in a Constant Uniaxial Strain Rate Deformation

Abstract

The microstructure of β-PVDF has great influence on its piezo- and pyroelectric responses. The microstructure of β-PVDF drastically changes upon a mechanical deformation perpendicular to the preferred chain orientation, mainly above the yielding point. The voltage (open-circuit response) developed in β-PVDF films was monitored while the material is subjected to a constant strain rate program.

Keywords:

• Ferroelectrics
• polymers
• electromechanical

Acknowledgements

Work supported by the Portuguese Foundation for Science and Technology under Grant POCTI/CTM/33501/99.