Fabrication and Texture Characterization of Bulk (Bi,Pb)2Sr2Ca2Cu3Ox and Bi2Sr2CaCu2Ox Superconductors

  • K. C. Goretta
  • Nan Chen
  • A. C. Biondo
  • B. L. Fisher
  • M. T. Lanagan
  • J. S. Kallend
Part of the Advances in Cryogenic Engineering Materials book series (ACRE, volume 42)


Bulk (Bi,Pb)2Sr2Ca2Cu3Ox (Bi-2223) and Bi2Sr2CaCu2Ox (Bi-2212) superconductors were fabricated by sinter forging. Bi-2223 (≈90% Bi-2223, 10% (Bi,Pb)2Sr2CaCu2Ox + other phases) and Bi-2212 (nearly phase pure) powders were first synthesized and then cold pressed into bars that were «50% dense. These bars were surrounded by Ag foil, heated in air to ≈845°C, and compressed for 3–6 h. The resultant bars were dense and highly textured. At 77 K, the Bi-2223 exhibited transport critical current density (Jc) values of 2000–8000 A/cm2; the Bi-2212 exhibited very low Jc. Extent of texture was evaluated by three X-ray diffraction methods: 2θ scans, rocking curves, and orientation distribution functions. It was found that Jc correlated best with the orientation distribution functions.


Critical Current Density Orientation Distribution Function Transport Critical Current Density Polycrystalline Superconductor Boundary Weak Link 
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Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • K. C. Goretta
    • 1
  • Nan Chen
    • 1
  • A. C. Biondo
    • 1
  • B. L. Fisher
    • 1
  • M. T. Lanagan
    • 1
  • J. S. Kallend
    • 2
  1. 1.Argonne National LaboratoryArgonneUSA
  2. 2.Illinois Institute of TechnologyChicagoUSA

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