Abstract
The electrical conduction properties of polyethylene filled with 3-percent carbon have been investigated. Detailed step response measurements have been performed as a function of temperature in a range of electric fields below 104 V/cm where conduction is essentially ohmic. Using a Fourier transform technique a frequency-dependent loss factor was calculated from the resorption current data. Thermaliy activated relaxation-type peaks are found at very low frequencies and interpreted tentatively as arising from interfacial polarizations at the various crystalline-amorphous interfaces. Results of measurements of the residual dc conductivity are also discussed.
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