Synergism of Gamma-ray Irradiation and Steam Exposure on the Degradation of Silicone Rubber

Y. Ohki*, N. Hirai

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Silicone rubber (SiR) is a fundamental electrical insulating material. For its use in nuclear power plants, the degradation induced by heat, gamma-ray irradiation, and steam exposure could be a concern. Therefore, their synergism on the degradation of SiR was examined experimentally. When SiR is first exposed to the steam at 200 °C, it melts and its tensile strength becomes impossible to measure. However, if the gamma-ray irradiation was given in advance, SiR is not destroyed so badly by the high-temperature steam. The reason for the above is that the formation of tight cross-linked structures via oxygens, induced by the irradiation of gamma rays, prevents the progress of hydrolysis.

Original languageEnglish
Title of host publication2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665407502
DOIs
Publication statusPublished - 2022
Event2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022 - Chongqing, China
Duration: 2022 Sep 252022 Sep 29

Publication series

Name2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022

Conference

Conference2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022
Country/TerritoryChina
CityChongqing
Period22/9/2522/9/29

ASJC Scopus subject areas

  • Instrumentation
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Electronic, Optical and Magnetic Materials
  • Computational Mathematics

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