Space charge behaviour in epoxy laminates under high constant electric field

Holé, S., Dissado, L. A., Ajour, M. N. & Fothergill, J. (2005). Space charge behaviour in epoxy laminates under high constant electric field. Journal of Physics D: Applied Physics, 38(16), pp. 2890-2898. doi: 10.1088/0022-3727/38/16/022

[img]
Preview
PDF
Download (489kB) | Preview

Abstract

The development of space charge in insulating materials is one of the main causes of their electrical ageing. The pulsed electro-acoustic method is often used to determine space charge distribution, but the signal analysis in the case of laminate structures is much more complex to analyse. In this paper the authors describe and use a simulated signal in order to study laminates made of epoxy resin and fibre mat. The relatively large conductivity of the fibres compared with that of the resin seems to produce a rapid charge dissociation and recombination in the fibres. Under voltage the presence of fibres close to an electrode seems to promote charge injection.

Item Type: Article
Subjects: Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Vice-Chancellor's Portfolio
URI: http://openaccess.city.ac.uk/id/eprint/1395

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics