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http://hdl.handle.net/10397/453
| Title: | High electrostriction and relaxor ferroelectric behavior in proton-irradiated poly(vinylidene fluoride-trifluoroethylene) copolymer | Authors: | Guo, S Zhao, X Zhou, Q Chan, HLW Choy, CL |
Issue Date: | 26-Apr-2004 | Source: | Applied physics letters, 26 Apr. 2004, v. 84, no. 17, p.3349-3351 | Abstract: | Effect of proton irradiation on poly(vinylidene fluoride-trifluoroethylene) 56/44 mol% copolymer has been studied using a Mach-Zehnder heterodyne interferometer, polarization hysteresis loop and dielectric constant measurements. The electrical-field-induced strain response of the copolymer after proton bombardment follows a quadratic electrostriction relationship. The electrostrictive coefficient at 5 kHz is similar to that obtained with a bimorph-based strain sensor, but at a much lower electric field. The polarization hysteresis after proton irradiation is reduced considerably and the dielectric constant exhibits typical relaxor behavior, which is suggested as the cause of the observed results. | Keywords: | Polymer blends Relaxor ferroelectrics Electrostriction Proton effects Dielectric polarisation Dielectric hysteresis Permittivity Internal stresses |
Publisher: | American Institute of Physics | Journal: | Applied physics letters | ISSN: | 0003-6951 | EISSN: | 1077-3118 | Rights: | © 2004 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 S. Guo et al. Appl. Phys. Lett. 84, 3349 (2004) and may be found at http://link.aip.org/link/?apl/84/3349 |
| Appears in Collections: | Journal/Magazine Article |
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| proton-irratiated_04.pdf | 72.11 kB | Adobe PDF | View/Open |
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