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

2 Scopus citations


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
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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