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The Influence of Metallic Interfaces on the Properties of Bulk (Hg,A)Ba2Ca2Cu3Ox (A=Pb,Bi) Superconductors

  • K. M. Amm
  • P. V. P. S. S. Sastry
  • D. C. Knoll
  • J. Schwartz
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 44)

Abstract

Synthesis and processing parameters for (Hg,A)Ba2Ca2Cu3.1Oy (A=Bi, Pb) were optimized for growth on AgPd and Au substrates (<850° C). Use of Bi2CuO4 as a Bi source combined with variations of BaCaCuO precursor phase assemblages allowed the formation of some liquid phase during the reaction and resulted in dense (Hg,A)Ba2Ca2Cu3.1Oy samples with aligned colonies of grains. Magnetization measurements in fields up to 30 T indicated good intergrain coupling within the large grain colonies. Phase pure samples of (Hg,A)1223 have been synthesized on AgPd and Au foils. Both the AgPd and Au interfaces were found to enhance grain growth and alignment.

Keywords

National High Magnetic Field Laboratory Alumina Sheath Phase Pure Sample Intergrain Connectivity Alkaline Earth Cuprates 
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 1998

Authors and Affiliations

  • K. M. Amm
    • 1
    • 2
  • P. V. P. S. S. Sastry
    • 1
  • D. C. Knoll
    • 1
    • 3
  • J. Schwartz
    • 1
    • 2
    • 3
  1. 1.National High Magnetic Field LaboratoryFlorida State UniversityTallahasseeUSA
  2. 2.Department of PhysicsFlorida State UniversityTallahasseeUSA
  3. 3.Department of Mechanical EngineeringFAMU-FSU College of EngineeringTallahasseeUSA

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