Development of Strengthened Bundle High Temperature Superconductors

  • J. W. Lue
  • J. A. Demko
  • M. S. Lubell
  • M. Tomsic
  • U. Sinha
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 44)

Abstract

In the process of developing high temperature superconducting (HTS) transmission cables, it was found that mechanical strength of the superconducting tape is the most crucial property that needs to be improved. It is also desirable to increase the current carrying capacity of the conductor so that fewer layers are needed to make the kilo-amp class cables required for electric utility usage. A process has been developed by encapsulating a stack of Bi-2223/Ag tapes with a silver or non-silver sheath to form a strengthened bundle superconductor. This process was applied to HTS tapes made by the Continuous Tube Forming and Filling (CTFF) technique pursued by Plastronic Inc. and HTS tapes obtained from other manufacturers. Conductors with a bundle of 2 to 6 HTS tapes have been made. The bundled conductor is greatly strengthened by the non-silver sheath. No superconductor degradation as compared to the sum of the original critical currents of the individual tapes was seen on the finished conductors.

Keywords

Ultimate Tensile Strength High Temperature Superconductor Transmission Cable Current Carry Capacity Single Tape 
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. J. W. Lue, et al,Test of two prototype high-temperature superconducting transmission cables, IEEE Trans. Applied Superconductivity, Vol 7, No. 2, 302-305 (1997).Google Scholar
  2. 2.
    M. Tomsic and A. Sarkar, “Is low-cost bscco tape just around the corner?”, Superconductor Industry, Vol. 10, No. 1, 18 - 23 (1997).Google Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • J. W. Lue
    • 1
  • J. A. Demko
    • 1
  • M. S. Lubell
    • 1
  • M. Tomsic
    • 2
  • U. Sinha
    • 3
  1. 1.Oak Ridge National LaboratoryOak RidgeUSA
  2. 2.Plastronic, IncTroyUSA
  3. 3.Southwire CompanyCarrolltonUSA

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