• DocumentCode
    1101644
  • Title

    Evaluation of techniques for fabricating very fine grained YBa2Cu3O7-δ+Ag composites

  • Author

    Kramer, M.J. ; Arrasmith, S.R.

  • Author_Institution
    Dept. of Metall. & Ceramics, Iowa State Univ., Ames, IA, USA
  • Volume
    27
  • Issue
    2
  • fYear
    1991
  • fDate
    3/1/1991 12:00:00 AM
  • Firstpage
    920
  • Lastpage
    922
  • Abstract
    The authors have compared several blending techniques to make Ag+YBa2Cu3O7-δ (Y123) composites. A chemical precipitation route seems to give the best dispersion of the Ag but appears to cause some decomposition of the finer-grained fraction of the Y123. The lower intergranular porosity in these composites reduces the O2 uptake in the samples, necessitating longer oxygen anneals. Long oxygen anneals for the composites can be avoided by first sintering the Y123 with an oxygen anneal and then blending in the Ag
  • Keywords
    barium compounds; ceramics; composite superconductors; high-temperature superconductors; powder technology; silver; yttrium compounds; YBa2Cu3O7-δ-Ag; anneals; blending techniques; chemical precipitation; decomposition; dispersion; fabrication; high temperature superconductors; intergranular porosity; sintering; very fine grained composites; Annealing; Ceramics; Chemicals; Composite materials; Dispersion; Granular superconductors; High temperature superconductors; Inorganic materials; Magnetic analysis; Superconducting materials;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.133328
  • Filename
    133328
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1101644