Evaluation of a Strengthening and Insulation System for High Temperature BSCCO-2223 Superconducting Tape

  • C. King
  • K. Herd
  • T. Laskaris
  • A. Mantone
Part of the Advances in Cryogenic Engineering Materials book series (ACRE, volume 42)

Abstract

Recent advances in BSCCO-2223 superconducting tape quality and length have led to demonstration programs for coil performance. The conductors in these coils need to be insulated without damage to the superconducting properties. A paper insulation process developed at the General Electric Company (GE) for low temperature superconducting Nb3Sn tape has been modified to provide the same insulation system to high temperature (HTS) superconducting tapes, such as BSCCO-2223. In this paper, we report on the insulation process and its effect on the tape performance. Several long lengths of conductor have been tested, unwound, insulated and retested to examine any degradation issues. Additionally, it is known that HTS materials are inherently weak in relation to the winding and handling stresses in a manufacturing environment. A system to provide mechanical stabilization to Nb3Sn tape through a lamination process has been successfully applied to high temperature superconductors as a method to build a strong, windable composite. The system is described and mechanical and electrical properties of the strengthened tapes are discussed.

Keywords

Ultimate Tensile Strength Copper Foil Lamination Process Solder Bath Paper Insulation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    M.G. Benz, “Mechanical and electrical properties of diffusion-processed Nb3Sn-Coppcr-Stainless Steel composite conductors”. Journal of Applied Physics. Vol 39. No 6. 2533–2537. May 1968.CrossRefGoogle Scholar
  2. 2.
    U.S. Patent # 5.299.758. Superconducting Tape from Laminated Foils. 1994Google Scholar
  3. 3.
    J. Yau, N. Savvides, Strain tolerance of multifilament Bi-Pb-Sr-Ca-O/silver composite superconducting tapes. Applied Physics Letters, 65 (11) 1454–1456 September 1994CrossRefGoogle Scholar
  4. 4.
    GE Nb3Sn Tape Design Review. March, 1991.Google Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • C. King
    • 1
  • K. Herd
    • 1
  • T. Laskaris
    • 2
  • A. Mantone
    • 1
  1. 1.GE Medical SystemsFlorenceUSA
  2. 2.GE Corporate Research and Development CenterSchenectadyUSA

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