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Record Nr. |
UNINA9910872656303321 |
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Titolo |
1998 International Symposium on Applications of Ferroelectrics |
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Pubbl/distr/stampa |
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[Place of publication not identified], : IEEE, 1999 |
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Descrizione fisica |
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1 online resource (1000 pages) |
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Disciplina |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Bibliographic Level Mode of Issuance: Monograph |
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Sommario/riassunto |
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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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