Relaxor ferroelectric polymers for actuators and transducers

Z. Y. Cheng, V. Bharti, X. Zhao, Shexi Wang, T. B. Xu, Q. M. Zhang

    Research output: Contribution to journalConference articlepeer-review

    1 Scopus citations

    Abstract

    Ultra-high electrostrictive strains, both longitudinal and transverse strains, were observed in polyvinylidene fluoride-trifluoroethylene (P(VDF-TrFE)) copolymers under a proper electron irradiation treatment. In addition, in DC electric field biased states, the material also exhibits a high effective piezoelectric coefficient, comparable to those in piezoceramic PZT. The material also has a high dielectric constant and relative low dielectric loss. Moreover, these properties can be tailored in a broad range by the processing conditions. These features indicate that the material is attractive for high performance actuators and transducers. In this paper, electrostrictive strain, effective piezocoefficients, elastic, dielectric properties and polarization behavior of the material are reported. We will also show that the material exhibits typical relaxor ferroelectric behavior.

    Original languageEnglish (US)
    Pages (from-to)581-584
    Number of pages4
    JournalProceedings of the IEEE Ultrasonics Symposium
    Volume1
    StatePublished - Dec 1 1998
    EventProceedings of the 1998 International Ultrasonics Symposium - Sendai, Miyagi, Jpn
    Duration: Oct 5 1998Oct 8 1998

    All Science Journal Classification (ASJC) codes

    • Acoustics and Ultrasonics

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