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1 Materials Science Poland

1 2007

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Polarization spectra analysis for the investigation of space charge in dielectric nanocomposites

Mazurek B., Moron L.

Materials Science Poland

2007

Vol. 25, No. 3

899--911

The aim of the study was to examine the influence of the dimension of matrix-filler interface on properties of epoxy nanocomposites. Using traditional investigation methods: dielectric spectroscopy, transient currents and thermally stimulated depolarization, as well as measurements of space charge distribution by the electroacoustic method, it was possible to evaluate the types of polarization and capability of accumulation and decay of space charge. The measurements performed made it possible to compare properties of a nanocomposite, microcomposite and pure resin. It was confirmed that the size of interface area plays a crucial role in the phenomena occurring in composites under the influence of electric fields.