12 July 1999 PZT/polymer flexible composites for embedded actuator and sensor applications
Author Affiliations +
Currently, smart structures utilize both polymeric sensor and PZT-based actuators. Polymeric sensors based upon PVDF are limited to about 70 degrees C operating temperature, while PZT-based actuators are inflexible. This paper examines the use of PZT/polymer composites for smart materials applications. Both ferroelectric (VDF) and non- ferroelectric high temperatuer polymers were studied. High temperature composite sensors were fabricated exhibiting g31 values of 90 X 10-3 Vm/N compared to 110 X 10-3 Vm/N for PVDF combined with excellent compliance. On the other hand, 0-3 composite based actuators were fabricated with greatly enhanced d31 over PVDF. Piezo properties and dielectric properties of both sensor and actuators were studied as a function of temperature voltage. Processing-structure-properties relationship was established including key processing parameters such as PZT particle size, enhanced poling additives and polymer properties. Thermal dependence of the 0-3 composites piezoproperties was correlated with glass properties of the polymer. Applications of this new class of 0-3 concepts to cure monitoring of advanced composite systems will be discussed.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Witold Kowbel, Witold Kowbel, Xiaoxin Xia, Xiaoxin Xia, William Champion, William Champion, James C. Withers, James C. Withers, Ben K. Wada, Ben K. Wada, } "PZT/polymer flexible composites for embedded actuator and sensor applications", Proc. SPIE 3675, Smart Structures and Materials 1999: Smart Materials Technologies, (12 July 1999); doi: 10.1117/12.352809; https://doi.org/10.1117/12.352809

Back to Top