Please use this identifier to cite or link to this item: http://dx.doi.org/10.18419/opus-4951
|Title:||Dynamics of poling PVDF between 25°C and 120°C|
|metadata.ubs.publikation.source:||Gerhard-Multhaupt, Reimund (Hrsg.): Proceedings / 7th International Symposium on Electrets (ISE 7) : Berlin 25-27 September 1991. New York, NY : IEEE, 1991, S. 388-393. URL http://dx.doi.org./10.1109/ISE.1991.167242|
|Abstract:||PVDF films with high β-content are poled in an electric field of 60 MV/m at temperatures between 25°C and 120°C. At 25°C the alignment of dipoles takes place in a central poling zone during several hours of poling. When the temperature is increased to 120°C the poling time necessary to align the dipoles in this narrow zone is reduced to several seconds. In addition, at temperatures higher than 90°C and increased poling times the central poling zone first increases but later decreases in its dielectric displacement. Simultaneously in a 10 μm regime adjoining the positive electrode a secondary displacement zone starts to grow. The strong reduction of this peak under short circuit conditions indicates hetero-charge accumulation in front of an anode.|
|Appears in Collections:||08 Fakultät Mathematik und Physik|
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