Decaying and steady currents in an epoxy polymer at high electric fields
- 21 July 1974
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 7 (11) , 1518-1530
- https://doi.org/10.1088/0022-3727/7/11/313
Abstract
Measurements are reported of the effect of field and temperature on decaying and steady currents in an epoxy polymer. Fields up to 140 MV m−1 were used and the steady current was found to increase as exp (α F½). The decaying currents followed the t−n law and increased much less rapidly with increasing field and temperature than did the steady currents. Absorption of water by the polymer caused a marked increase in steady-state conduction but the current characteristics were similar to those of dried specimens. It is suggested that the decaying currents are due to electronic hopping conduction, whereas the steady currents are ionic.Keywords
This publication has 10 references indexed in Scilit:
- Frequency-dependence of conductivity in hopping systemsJournal of Non-Crystalline Solids, 1972
- Electrical conduction in polyethylene terephthalate and polyethylene filmsJournal of Physics D: Applied Physics, 1971
- A Consideration of Poole-Frenkel Effect on Electric Conduction in InsulatorsJournal of Applied Physics, 1971
- Poole-Frenkel conduction in amorphous solidsPhilosophical Magazine, 1971
- Conduction in polythene with strong electric fields and the effect of prestressing on the electric strengthProceedings of the Institution of Electrical Engineers, 1971
- Electronic properties of amorphous dielectric filmsThin Solid Films, 1967
- Die elektrische Leitfähigkeit von Hochpolymeren, insbesondere von Polyäthylen, bei hohen FeldstärkenColloid and Polymer Science, 1967
- Schottky Emission and Conduction in Some Organic Insulating MaterialsJournal of Applied Physics, 1966
- High Field Conduction Currents in HexaneProceedings of the Physical Society. Section B, 1957
- Transient Electric Currents from Plastic InsulatorsJournal of Applied Physics, 1956