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

fYear

1993

fDate

17-20 Oct 1993

Firstpage

781

Lastpage

786

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1993. Annual Report., Conference on

Conference_Location

Pocono Manor, PA

Print_ISBN

0-7803-0966-9

Type

conf

DOI

10.1109/CEIDP.1993.378878

Filename

378878