Fabrication and Microstructural Development of Ag-Clad TlBa2Ca2Cu3Ox Tapes

  • A. C. Biondo
  • M. T. Lanagan
  • K. C. Goretta
  • J. Hu
  • D. J. Miller
  • C.-T. Wu
  • C. A. Youngdahl
  • B. L. Fisher
  • R. B. Poeppel
Part of the An International Cryogenic Materials Conference Publication book series (ACRE, volume 40)

Abstract

One of the most successful fabrication techniques for high-Tc superconductors is the powder-in-tube method, which consists of packing superconductor powder into a silver tube and mechanically deforming the composite into a tape. Microstructural development and critical current density (Jc) have been explored extensively for Y−, Bi−, and Tl− based superconductors. Early studies on YBa2Cu3O7 have shown that Je is limited by weak links that restrict current transport across grain boundaries.1 Low Jc (600 A/cm2 at 77 K) has been attributed to inadequate grain alignment which results in weak-link behavior.2

Keywords

Secondary Phase Critical Current Density Phase Assemblage Microstructural Data Differential Thermal Analysis Result 
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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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • A. C. Biondo
    • 1
  • M. T. Lanagan
    • 1
  • K. C. Goretta
    • 1
  • J. Hu
    • 1
  • D. J. Miller
    • 1
  • C.-T. Wu
    • 1
  • C. A. Youngdahl
    • 1
  • B. L. Fisher
    • 1
  • R. B. Poeppel
    • 1
  1. 1.Argonne National LaboratoryArgonneUSA

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