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Space charge and dielectric polarization in polymers

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1 Author(s)
D. K. Das-Gupta ; Sch. of Inf., Univ. of Wales, Bangor, UK

It is difficult to demonstrate unequivocally that the steady state conduction current in insulating polymers may originate from space charges because of the apparent field dependence of the charge mobility. However, the frequency dependent dielectric relaxation behaviour may be affected by the time dependent absorption currents in these materials. The irreversible electrical ageing in polymers under continued electrical stress can be detected by dielectric spectroscopic studies at very low frequencies

Published in:

Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on  (Volume:1 )

Date of Conference:

2000