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http://nopr.niscpr.res.in/handle/123456789/9618| Title: | Depolarization studies of polyvinylidene fluoride foil electrets using thermally stimulated discharge |
| Authors: | Khare, P K Sahu, Devendra K Verma, Ashutosh Srivastava, Rudra Kant |
| Keywords: | Electrets;Thermally stimulated discharge;Polyvinylidene fluoride |
| Issue Date: | Sep-2004 |
| Publisher: | CSIR |
| IPC Code: | H 01 G 7/02 |
| Abstract: | Thermally stimulated discharge current (TSDC) in foils of polyvinylidene fluoride (PVDF) was measured under various polarizing conditions. The TSDC thermograms were recorded by reheating the samples at a linear rate of 3 oC/min. It was found that samples give rise to a peak around (100 ± 10 oC). The peak position is not consistent with the polarization fields and temperatures. The activation energy associated with the peak is found to be ~ 0.62 eV. The dependence of TSD current and TSDC data on polarizing agents, i.e. field and temperature is explained on the basis of theoretical predictions. The space charge polarization contributes significantly to the polarization of the polymer. |
| Page(s): | 693-696 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Appears in Collections: | IJPAP Vol.42(09) [September 2004] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJPAP 42(9) 693-696.pdf | 74.47 kB | Adobe PDF | View/Open |
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