Title :
Effect of γ-irradiation on electrical conductivity of EPR with filler
Author :
Yamanaka, S. ; Fukuda, T. ; Sawa, G. ; Ieda, M. ; Ito, M. ; Seguchi, T.
Author_Institution :
Dept. of Electr. & Electron. Eng., Meijo Univ., Nagoya, Japan
Abstract :
The γ-irradiation effect on electrical conductivity is described for EPR (ethylene-propylene rubber) formulated for a cable insulator. The irradiation produces both permanent and temporary changes in the conductivity. Annealing reduces the temporarily increased conductivity toward that of unirradiated samples. The permanent change in conductivity is probably caused by a chemical change and the temporary change is likely due to such physical processes such as the trapping of carriers excited by γ-irradiation
Keywords :
cable insulation; electrical conductivity; ethylene-propylene rubber; filled polymers; gamma-ray effects; γ-irradiation; annealing; cable insulator; carrier trapping; chemical change; electrical conductivity; ethylene-propylene rubber; filler; Cables; Conducting materials; Conductivity; Dielectrics and electrical insulation; Indium tin oxide; Nuclear electronics; Nuclear power generation; Paramagnetic resonance; Power engineering and energy; Sheet materials;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1993. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-0966-9
DOI :
10.1109/CEIDP.1993.378878
