Mitigation of Degradation in Polymers by Gamma Rays

Yoshimichi Ohki, Yu Miyazaki, Haolong Zhou, Momoka Sumita, Takumi Someya, Naoshi Hirai

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

Abstract

In nuclear power plants, polymers used for electrical insulation are irradiated by radioactive rays, depending on the places where they are installed. If an accident occurs, such polymers may also suffer high-temperature steam exposure. We have conducted several experiments that aim at clarifying the effects of thermal stresses, gamma-ray irradiation, and steam exposure on various insulating polymers and have found that gamma-ray irradiation can mitigate the degradation induced by the steam exposure in several polymers.

Original languageEnglish
Title of host publication13th International Conference on the Properties and Applications of Dielectric Materials
Subtitle of host publicationEmerging Dielectrics for Energy Sustainability, ICPADM 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages89-92
Number of pages4
ISBN (Electronic)9781728182384
DOIs
Publication statusPublished - 2021 Jul 12
Event13th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2021 - Virtual, Online
Duration: 2021 Jul 122021 Jul 14

Publication series

NameProceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials
Volume2021-July

Conference

Conference13th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2021
CityVirtual, Online
Period21/7/1221/7/14

Keywords

  • aging
  • gamma rays
  • polymer
  • silicone rubber
  • steam exposure

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Materials Chemistry

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