Elasticity, plasticity and fracture toughness at ambient and cryogenic temperatures of epoxy systems used for the impregnation of high-field superconducting magnets

•Experimental protocol to measure yield stress of epoxies at cryogenic temperatures.•Rate-dependent yield stress of epoxies at room temperature follows Eyring theory.•No rate-dependence of the yield stress of epoxies at cryogenic temperatures.•At cryogenic temperatures all epoxies have similar elast...

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