Abstract

The nonlinear electric and mechanical behavior of 0-3 type (particle-reinforced) ferroelectric composites with different viscoelastic and dielectric relaxation polymer-matrixes was observed experimentally. The analysis of the experimental results was carried out in the present study by examining the effects of the viscoelasticity and dielectric relaxation of the polymer matrices, the loading rate and the volume fraction of the PZT particles on the nonlinear behavior of the composites. The composite sample was isolated from the test frame to prevent high voltage arcing in the setup, which was employed to make precise measurement to systematically provide experimental results. Using a high voltage amplifier and a servo-hydraulic test frame, the hysteresis loops of electric displacement versus electric field at different loading amplitudes and rates, and the piezoelectric curves of the ferroelectric composites were measured. The results show that the effects of viscoelasticity and dielectric relaxation of the matrices on the electric and mechanical behavior of the ferroelectric composites are significant. The nonlinear behavior of ferroelectric composites with a viscoelastic and dielectric relaxation matrix is also related to the frequency of the applied loads.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.