Speaker
Pei Li
(Fermi National Accelerator Laboratory)
Description
Knowledge of thermal-mechanical properties of epoxy-impregnated superconductor/insulation composite is important for designing and fabricating high field superconducting magnets towards their ultimate potentials. As a part of the 15 T dipole magnet program at Fermi National Accelerator Laboratory, we report the study of the mechanical properties and thermal contraction of epoxy-impregnated Nb3Sn Rutherford cable stacks made from the state-of-the-art RRP strands at room temperature and cryogenic temperatures. Stress-strain curves of such composite materials were tested under both monotonic and cyclic compressive loads. The effect of varying the insulation wrapping of the Rutherford cables is also investigated.
Authors
Pei Li
(Fermi National Accelerator Laboratory)
Steve Krave
(Fermilab)
Dr
Alexander Zlobin
(Fermilab)