| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1620941 | Journal of Alloys and Compounds | 2010 | 8 Pages |
Abstract
Thermally stimulated depolarization current (TSDC) and dielectric relaxation spectroscopy (DRS) techniques were employed to study the relaxations and the conductivity phenomena in epoxy-based polymer. In addition to the primary α relaxation process associated with the glass–rubber transition, significant interfacial relaxation and ionic conduction process have been revealed. The ac conductivity is temperature and frequency dependent and shows a dc plateau at low frequencies. Above the glass transition temperature, dc conductivity is described by a Vogel–Tamman–Fulcher–Hesse (VFTH) equation while it shows Arrhenius behaviour at higher temperatures.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Hichem Smaoui, Mourad Arous, Hajer Guermazi, Serge Agnel, Alain Toureille,