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|Title:||Effect of electron irradiation on poly(vinylidene fluoride-trifluoroethylene) copolymers|
Chan, Helen L. W.
Electron beam effects
Solid-state phase transformations
|Publisher:||American Institute of Physics|
|Source:||Applied physics letters, 11 Sept. 2000, v. 77, no. 11, p. 1713-1715.|
|Abstract:||Electrical field-induced strain response of electron-irradiated poly(vinylidene fluoride-trifluoroethylene) copolymer has been studied by a Mach-Zehnder type heterodyne interferometer in the frequency range of 3-9 kHz. The electrostrictive constant is calculated from the strain results, which is of the same order of magnitude as those obtained at 1 Hz by a bimorph-based strain sensor but at much lower electrical field. Changes in the dielectric property, phase transition behavior and crystal structure of the same copolymer have also been studied. The reversible solid-state transition between the polar and nonpolar phase in the crystalline regions of the copolymer driven by the external electric field is suggested to be responsible for the significant high electrostrictive strain of the electron-irradiated copolymer.|
|Rights:||© 2000 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Y. Tang et al., Appl. Phys. Lett. 77, 1713 (2000) and may be found at http://link.aip.org/link/?apl/77/001713|
|Appears in Collections:||AP Journal/Magazine Articles|
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