The Trials and Tribulations of Fabricating the Pipe for the “Rope in a Pipe” Nb3Sn Superconductor
A conductor using flowing supercritical helium as a coolant has been adopted for the superconducting magnet being built by the Airco-Westinghouse industrial team for the Large Coil Program (LCP) at Oak Ridge National Laboratory. This conductor utilizes the “rope in a pipe” concept in which a large number of superconducting Nb3Sn strands are formed into a cable and wrapped in a stainless steel jacket as shown in Fig. 1.
KeywordsTitanium Carbide Welding Chrome Argon
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- 2.C. J. Heyne, D. J. Hackworth, S. K. Singh, J. L. Young, and P. A. Sanger, in: “Proceedings of the 8th Symposium on Engineering Problems of Fusion Research,” IEEE Publication No. 79CH1441-5NPS, Vol. III, IEEE, New York (1979), p. 1148.Google Scholar
- 3.R. E. Gold, W. A. Logsdon, G. E. Grotke, and B. Lustman, Evaluation of conductor sheath alloys for a forced-flow Nb3Sn superconducting magnet coil for the Large Coil Program, in: “Advances in Cryogenic Engineering - Materials,” Vol. 28, Plenum Press, New York (1982), p. 759.Google Scholar
- 4.W. A. Logsdon, G. E. Grotke, R. E. Gold, and B. Lustman, Cryogenic tensile and fracture toughness properties of three candidate structural materials for the Large Coil Program superconducting magnet conductor sheath, in: “Advances in Cryogenic Engineering - Materials,” Vol. 28, Plenum Press, New York (1982), p. 771.Google Scholar
- 5.J. A. Brooks and R. W. Krenzer, Weld. J. 53 (6): 2425 (1974).Google Scholar