• DocumentCode
    1120850
  • Title

    Field Trapping Properties of c -Growth Region in RE123 Melt-Solidified Bulks

  • Author

    Yamazaki, Yuhya ; Ishii, Y. ; Ogino, H. ; Horii, S. ; Shimoyama, J. ; Kishio, K.

  • Author_Institution
    Dept. of Appl. Chem., Univ. of Tokyo, Tokyo, Japan
  • Volume
    19
  • Issue
    3
  • fYear
    2009
  • fDate
    6/1/2009 12:00:00 AM
  • Firstpage
    2949
  • Lastpage
    2952
  • Abstract
    We have fabricated Ag-free and Ag-added Dy123 cylindrical melt-solidified bulks with large c -growth region. Samples cut from c-growth region of each bulk exhibited high J c up to high magnetic fields and excellent field trapping properties. On the contrary, J c and field trapping properties in the a -growth region were suppressed by subgrain boundaries. Magnetic flux penetration along the subgrain boundaries was confirmed in magneto-optical images of the a -growth region. Both J c and field trapping properties of Dy123 bulks were improved by Ag-addition due to low level Ag substitution for Cu site in the CuO chain.
  • Keywords
    barium compounds; critical current density (superconductivity); dysprosium compounds; grain boundaries; high-temperature superconductors; magnetic field effects; materials preparation; silver; DyBa2Cu3Oy; DyBa2Cu3Oy-Ag; RE123 melt-solidified bulks; critical current density; field trapping properties; high magnetic fields; magnetic flux penetration; magneto-optical images; subgrain boundaries; High-temperature superconductors; magnetic field measurement; superconducting materials growth; superconducting materials measurements;
  • fLanguage
    English
  • Journal_Title
    Applied Superconductivity, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    1051-8223
  • Type

    jour

  • DOI
    10.1109/TASC.2009.2018311
  • Filename
    5152920
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1120850