High Electromechanical Coupling Factor and Electrostrictive Strain over Broad Frequency Range in Electrostrictive Poly(vinylidene fluoride-trifluoroethylene) Copolymer Films
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概要
- 論文の詳細を見る
Electromechanical coupling factor is one of the most important parameters for measuring the performance of materials for electromechanical transduction applications. In this paper, we will show that a transverse electromechanical coupling factor $k_{31}$ of more than 0.45 can be achieved in poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] copolymer under certain electron irradiation treatment conditions. In addition, the effective piezoelectric coefficients of the irradiated copolymer have been found to increase markedly in comparison to non-irradiated copolymers. Experimental evidences also indicate that the improved electrostrictive strains in irradiated copolymer films can be maintained over a broad frequency and temperature range.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-02-15
著者
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Wright K.
Laboratory of Electromagnetic and Electronic Systems, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Bharti Vivek
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
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Xu T.-B.
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
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Cheng Z.-Y.
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
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Mai T.
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
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Zhang Q.
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
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Ramotowski Tom
Naval Undersea Warfare Center, Newport, Rhode Island 02841, USA