Mechanical Properties of Three Candidate Organic Insulator Materials for Fusion Reactors
Insulators in superconducting magnets for fusion reactors will be exposed to radiation doses of 10 to 100 Mgy with more than half the dose coming from fast neutrons. One polyimide- and two epoxy-based laminates* were neutron irradiated to total doses of 2.6 and 4.1 × 1021 n/m2, E>0.1 MeV at 4.2 K in the Intense Pulsed Neutron Source at Argonne National Laboratory. Flexural properties were determined at 75 K and compared to results from previous studies of gamma irradiation effects at Oak Ridge National Laboratory.
KeywordsNickel Silane Boron Epoxy Polyimide
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