Evaluation of Large, Multifilament Nb3Sn Conductors with a New 12-Tesla Tensile Test Apparatus

  • D. W. Deis
  • D. G. Hirzel
  • A. R. Rosdahl
  • D. R. Roach
  • H. S. FreynikJr.
  • J. P. Zbasnik
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 24)

Abstract

A large cryogenic tensile test apparatus has been constructed at the Lawrence Livermore Laboratory (LLL) as part of the Nb3Sn conductor program. This equipment was designed so that mechanical measurements can be made at 300, 77, or 4.2 K and critical current can be measured under simulated operating conditions as a function of the strain on large, prototype conductors for fusion magnets. The maximum operating parameters of the machine are: load of 223 kN, magnetic field of 12 T, and conductor current of 10 k A. Some of the unique features of this equipment will be described and preliminary mechanical and superconducting data on sample Nb3Sn conductors discussed.

Keywords

Boulder Fiberglass 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    H. S. Freynik, Jr., D. R. Roach, D. W. Deis, and D. G. Hirzel, in Advances in Cryogenic Engineering, Vol. 24, Plenum Press, New York (1978), p. 473.Google Scholar
  2. 2.
    E. Adam, E. Gregory, and F. T. Ormand, IEEE Trans. Magn. MAG-13(1):319 (1977).CrossRefGoogle Scholar
  3. 3.
    C. F. Old and J. P. Charlesworth, Cryogenics 16(8):469 (1976).CrossRefGoogle Scholar
  4. 4.
    I. L. McDougall, IEEE Trans. Magn. MAG-11(5): 14679 (1975).Google Scholar
  5. 5.
    E. Gregory, E. Adam, F. Ormand, and F. Kies, Airco, Inc., Murray Hill, New Jersey, private communication.Google Scholar
  6. 6.
    R. Randall, J. Wong, D. W. Deis, B. J. Shaw, and M. R. Daniel, IEEE Trans. Magn. Mag-11(2):291 (1975).CrossRefGoogle Scholar
  7. 7.
    D. S. Easton and R. E. Schwall, Appl. Phys. Lett. 29(5):319 (1976).CrossRefGoogle Scholar
  8. 8.
    J. W. Ekin, Appl. Phys. Lett. 29(3):216 (1976).CrossRefGoogle Scholar
  9. 9.
    G. Rupp, IEEE Trans. Magn. MAG-13(5):1565 (1977).CrossRefGoogle Scholar
  10. 10.
    T. Luhman and M. Suenaga, IEEE Trans. Magn. MAG-13(1):800 (1977).CrossRefGoogle Scholar
  11. 11.
    T. Luhman and M. Suenaga, Appl. Phys. Lett. 29(1):61 (1976).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1978

Authors and Affiliations

  • D. W. Deis
    • 1
  • D. G. Hirzel
    • 1
  • A. R. Rosdahl
    • 1
  • D. R. Roach
    • 1
  • H. S. FreynikJr.
    • 1
  • J. P. Zbasnik
    • 1
  1. 1.Lawrence Livermore LaboratoryLivermoreUSA

Personalised recommendations