Degradation of silicone rubber analyzed by instrumental analyses and dielectric spectroscopy

Yoshimichi Ohki*, Naoshi Hirai, Daomin Min, Liuqing Yang, Shengtao Li

*この研究の対応する著者

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Silicone rubber (SiR) was gamma irradiated at 125, 145 and 185 °C or thermally aged at 220, 250 and 280 °C and the resultant changes in performance were evaluated. It has become clear from instrumental analyses that crosslinking via oxidation of silicon atoms and chain scission are induced by gamma rays. Furthermore, from the temperature dependence of real relative permittivity at high frequencies, the thermal expansion coefficient was found to become smaller with the increase in dose. These results can be understood well by the chemical and structural changes in SiR induced by the degradation.

本文言語English
ホスト出版物のタイトルMinerals, Metals and Materials Series
出版社Springer International Publishing
ページ1323-1332
ページ数10
ISBN(印刷版)9783030046385, 9783030046392, 9783319515403, 9783319651354, 9783319728520, 9783319950211
DOI
出版ステータスPublished - 2019 1 1
イベント18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors 2019 - Boston, United States
継続期間: 2019 8 182019 8 22

出版物シリーズ

名前Minerals, Metals and Materials Series
ISSN(印刷版)2367-1181
ISSN(電子版)2367-1696

Conference

Conference18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors 2019
国/地域United States
CityBoston
Period19/8/1819/8/22

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • エネルギー工学および電力技術
  • 材料力学
  • 金属および合金
  • 材料化学

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