| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5205729 | Polymer Testing | 2016 | 28 Pages |
Abstract
In this work we report on the ultrasonic and dielectric properties of composites consisting of conventional piezoelectric polymer, polyvinylidene fluoride/trifluoroethylene (PVDF-TrFE) copolymer of composition 70/30Â mol. %, and (Pb0.75Ba0.24Sr0.01)(Zr0.53Ti0.47)O3 (BPZT) particles. BPZT fillers concentration was varied from 10 to 50Â vol.%. Investigation of ultrasonic wave attenuation, velocity and piezoelectric voltage in these composites was performed over a temperature range from 300Â K to 420Â K using an automatic ultrasonic pulse-echo method. The temperature dependences of ultrasonic velocity and attenuation showed anomalies attributed to the glass transition temperature Tg and Curie temperature Tc of the polymer matrix.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
J. Belovickis, V. Samulionis, J. Banys, M. Silibin, A. Solnyshkin, Yu. Shilyaeva, Ð. Nekludov, S. Gavrilov, V. Jr., V. Rubanik, V.V. Shvartsman,