THE CONDUCTION AND THERMALLY STIMULATED POLARIZATION CURRENTS IN (TGS-PE) PARTICULATE COMPOSITES

Different concentrations of polyethylene (PE) are mixed with Triglycin e Sulphate (TGS) powder. The temperature dependence of thermally stimu lated polarization current (TSPC) was studied at different applied vol tages and heating rates. The results were discussed and special stress was done on conduction mechanism, trapping injection, cleaning of cha rge carriers and variations in bulk polarization. The conduction curre nt was measured during cooling. It was found that this current is extr emely lower than the TSPC current. Besides, the activation energy of t he conduction process is lower than that calculated from TSPC process. The addition of PE is thought to be responsible for the observed phen omena.