Article ID Journal Published Year Pages File Type
1481873 Journal of Non-Crystalline Solids 2010 4 Pages PDF
Abstract

A method of broad-band dielectric relaxation spectroscopy (10−1–107 Hz) has been used to study the mechanisms of high-temperature relaxation, related to space charge and electrode phenomena, in extruded films of vinylidene fluoride – hexafluoropropylene copolymer. The analysis of dielectric data on films of different thickness showed qualitative agreement with Iwamoto theory. Quantitative correlation of temperature dependencies of the relaxation times with conclusions of this theory assumes that not only the film thickness, but also the diffusion coefficient must be taken into account. It was found that mobility characteristics of the space charge are dependent upon the electrode material.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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