TY - GEN
T1 - Synergism of Gamma-ray Irradiation and Steam Exposure on the Degradation of Silicone Rubber
AU - Ohki, Y.
AU - Hirai, N.
N1 - Funding Information:
This research was performed under the research entrusted by Secretariat of Nuclear Regulation Authority in Japan
Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - 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.
AB - 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.
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U2 - 10.1109/ICHVE53725.2022.9961739
DO - 10.1109/ICHVE53725.2022.9961739
M3 - Conference contribution
AN - SCOPUS:85143985387
T3 - 2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022
BT - 2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022
Y2 - 25 September 2022 through 29 September 2022
ER -