Journal
FUSION ENGINEERING AND DESIGN
Volume 112, Issue -, Pages 418-424Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.fusengdes.2016.06.031
Keywords
Superconducting magnet; Glass fiber reinforced plastics; Cyanate-based resin; Gamma-ray irradiation; Gas evolution; Mechanical properties
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Funding
- European Commission [284404]
- DoE, USA
- KEK, Japan
- CERN-KEK collaboration program
- JSPS KAKENHI grant [23104003]
- Grants-in-Aid for Scientific Research [16H06489] Funding Source: KAKEN
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Glass fiber reinforced plastics (GFRPs) with cyanate ester resin/epoxy resin, bismaleimide resin/epoxy resin, and bismaleimide-triazine resin as matrices were developed for the superconducting magnet systems used in high intensity accelerators. The radiation resistance of these GFRPs was evaluated based on their gas evolution and changes in their mechanical properties after gamma-ray irradiation with dose of 100 MGy in vacuum at ambient temperature. After irradiation, a small amount of gas was evolved from all of the GFRPs, and a slight decrease in mechanical properties was observed compared with the conventional epoxy resin-GFRP, G10. Among the GFRPs, the smallest amount of gas (6 x 10(-5) mol/g) was evolved from the GFRP with the bismaleimide-triazine resin, which also retained more than 88% of its flexural strength after 100 MGy irradiation; this GFRP is thus considered the most promising material for superconducting magnet systems. (C) 2016 Elsevier B.V. All rights reserved.
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