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|Title:||Effect of dielectric relaxation on the performance of P(VDF-TrFE) copolymer ultrasonic transducers|
|Authors:||Kwok, KW |
|Source:||ISAF 1998 : proceedings of the eleventh IEEE International Symposium on Applications of Ferroelectrics, Montreux, Switzerland, August 24-27, 1998, p. 243-246 How to cite?|
|Abstract:||The complex dielectric permittivity of vinylidene fluoride-trifluoroethylene copolymer with 20 mol% of TrFE [P(VDF-TrFE) 80/20] has been measured over the frequency range of 500 kHz to 20 MHz at temperatures varying from 20° to 100 °C. This copolymer has the highest electromechanical coupling coefficient k[sub t] among all TrFE compositions and has thus attracted considerable interest in ultrasonic transducer applications. The effect of dielectric relaxation on the performance of VDF-TrFE transducers is discussed.|
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|Appears in Collections:||Conference Paper|
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