Spatial Variations in the Transport Properties of Yba2Cu3O7-δ Fibers

  • M. J. Neal
  • J. W. Halloran
Part of the An International Cryogenic Materials Conference Publication book series (ACRE, volume 36)


In this study fibers of dense, apparently homogeneous YBa2Cu3O7-δ were used to study the spatial distribution of the critical current density in weak linked ceramic superconductors. It was discovered that for these samples not only does the critical current vary along the length of the fiber, but so does the transition temperature and the normal state resistivity.


Critical Current Density Oxygen Anneal Ceramic Fiber Normal State Resistivity Uniform Specimen 
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  1. 1.
    “Composite Ceramic Superconducting Wires for Electric Motor Applications”, First Annual Report, DARPA Contract No. N00014–88-C-0512. July 1989.Google Scholar
  2. 2.
    R. Olshansky and R.D. Maurer, J. Appl. Phys., 46, 4497, (1976).CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • M. J. Neal
    • 1
  • J. W. Halloran
    • 1
  1. 1.CPS SuperconductorMilfordUSA

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