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Proceedings Paper

Electromechanical behavior of electroactive P(VDF-TrFE) copolymers
Author(s): Qi Ming Zhang; Vivek Bharti; Zhong-Yang Cheng; Tian-Bing Xu; Shexi Wang; Thomas S. Romotowski; Frank A. Tito; Robert Y. Ting
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Paper Abstract

An exceptionally high electrostrictive response was observed in electron irradiate polyvinelidene fluoride- trifluoroethylene [P(VDF-TrFE)] copolymer. Moreover, the transverse strain of the material can be tuned over a large range by different sample treatment conditions. For example, in films uniaxially stretched, the strain can be comparable or even larger than the longitudinal strain, while in films unstretched, the transverse strain is quite small. In addition, when the films are completely clamped mechanically in the lateral directions, the films can still generate large longitudinal strains. Due to relatively high elastic modulus of the films, high elastic strain energy densities, which are much higher than those in conventional piezo and electrostrictive ceramics and magnetostrictive materials.

Paper Details

Date Published: 28 May 1999
PDF: 6 pages
Proc. SPIE 3669, Smart Structures and Materials 1999: Electroactive Polymer Actuators and Devices, (28 May 1999); doi: 10.1117/12.349670
Show Author Affiliations
Qi Ming Zhang, The Pennsylvania State Univ. (United States)
Vivek Bharti, The Pennsylvania State Univ. (United States)
Zhong-Yang Cheng, The Pennsylvania State Univ. (United States)
Tian-Bing Xu, The Pennsylvania State Univ. (United States)
Shexi Wang, The Pennsylvania State Univ. (United States)
Thomas S. Romotowski, Naval Undersea Warfare Ctr. (United States)
Frank A. Tito, Naval Undersea Warfare Ctr. (United States)
Robert Y. Ting, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 3669:
Smart Structures and Materials 1999: Electroactive Polymer Actuators and Devices
Yoseph Bar-Cohen, Editor(s)

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