• DocumentCode
    842003
  • Title

    High-Tc superconductors-based nanocomposites with improved intergrain coupling and enhanced bulk pinning

  • Author

    Prozorov, Tanya ; McCarty, Brett ; Liu, Baowei ; Prozorov, Ruslan

  • Author_Institution
    Sch. of Chem. Sci., Univ. of Illinois, Urbana, IL, USA
  • Volume
    15
  • Issue
    2
  • fYear
    2005
  • fDate
    6/1/2005 12:00:00 AM
  • Firstpage
    3114
  • Lastpage
    3117
  • Abstract
    Heterogeneous sonochemical synthesis was used to modify superconducting properties of granular YBa2Ca3CuO7-δ and Bi2Sr2CaCu2O8+x. Sonication of liquid-powder alkane slurries produces material with enhanced intergrain coupling and improved current-carrying capabilities. Co-sonication with metals and organometallics results in highly compact nanocomposites with increased magnetic irreversibility. Ultrasonic irradiation of YBa2Ca3CuO7-δ carried under partial oxygen atmosphere produces similar morphological effects and increases superconducting transition temperature due to effective surface saturation with oxygen. Detailed chemical and physical characterization of sonochemically prepared high-Tc nanocomposites is presented.
  • Keywords
    barium compounds; bismuth compounds; calcium compounds; composite superconductors; critical current density (superconductivity); flux pinning; granular superconductors; high-temperature superconductors; nanocomposites; strontium compounds; yttrium compounds; Bi2Sr2CaCu2O8; YBa2Ca3CuO7-δ; bulk pinning; critical current; flux pinning; granular superconductor; heterogeneous sonochemical synthesis; high-temperature superconductors; intergrain coupling; liquid-powder alkane slurries; magnetic irreversibility; nanocomposites; sonication; superconducting properties; superconducting transition temperature; surface saturation; ultrasonic irradiation; Atmosphere; Bismuth; Granular superconductors; Magnetic materials; Nanocomposites; Saturation magnetization; Slurries; Strontium; Superconducting magnets; Superconducting transition temperature; Critical current; granular superconductor; magnetic irreversibility; pinning;
  • fLanguage
    English
  • Journal_Title
    Applied Superconductivity, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    1051-8223
  • Type

    jour

  • DOI
    10.1109/TASC.2005.848971
  • Filename
    1440329
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=842003