Title :
Characterization of the thermo-mechanical behavior of insulated cable stacks representative of accelerator magnet coils
Author :
Reytier, M. ; Devred, A. ; Durante, M. ; Gourdin, C. ; Védrine, P.
Author_Institution :
CEA Saclay, Gif-sur-Yvette, France
fDate :
3/1/2001 12:00:00 AM
Abstract :
A key issue in the design and fabrication of superconducting accelerator magnets is the detailed knowledge of the thermo-mechanical properties of their components. Measurements have been performed on straight stacks of Rutherford-type cables representative of magnet coils. The investigated samples are made up of NbTi and Nb3Sn cables, insulated with quartz-fiber tapes and vacuum-impregnated with epoxy resin. The characterization includes compressive behavior studies at room and liquid helium temperatures, as well as measurements of thermal shrinkage coefficients. After a detailed description of the experimental procedures, tables of practical numbers that can be used by magnet designers are presented
Keywords :
Young´s modulus; heat treatment; niobium alloys; superconducting cables; superconducting magnets; tin alloys; titanium alloys; type II superconductors; Nb3Sn; NbTi; Rutherford-type cables; accelerator magnet coils; compressive behavior; epoxy resin impregnated cables; insulated cable stacks; quartz-fiber tape insulation; thermal shrinkage coefficients; thermo-mechanical behavior; Accelerator magnets; Fabrication; Insulation; Magnetic properties; Performance evaluation; Superconducting cables; Superconducting coils; Superconducting films; Superconducting magnets; Thermomechanical processes;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
