• DocumentCode
    907018
  • Title

    Influence of Heat Treatment on Superconductivity of MgB _{2} Bulk Sintered in Flowing Welding Grade Ar Atmosphere

  • Author

    Zhang, Y. ; Lu, C. ; Zhou, S.H. ; Chung, K.C. ; Kim, Y.K. ; Dou, S.X.

  • Author_Institution
    Inst. for Supercond. & Electron. Mater., Univ. of Wollongong, Wollongong, NSW
  • Volume
    45
  • Issue
    6
  • fYear
    2009
  • fDate
    6/1/2009 12:00:00 AM
  • Firstpage
    2626
  • Lastpage
    2629
  • Abstract
    In this paper, MgB2 samples were sintered in flowing welding grade Ar. The effect of the sintering time varying from 10 minutes to 3 hours on superconductivity of MgB2 has been investigated. It has been found that both Hc2 and Hirr increase with the sintering time and they have linear relationships with microstrain. The sample sintered for 30 min exhibits the highest Jc at high fields. The reason can be attributed to the improved connectivity and the increased Hc2.
  • Keywords
    critical current density (superconductivity); heat treatment; magnesium compounds; powders; sintering; superconducting critical field; superconducting materials; critical current density; flowing welding grade Ar atmosphere; heat treatment; linear relationships; microstrain; powders; sintering; superconductivity; time 10 min to 3 hour; upper critical field; MgB $_2$; microstrain; sintering time; superconductivity;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2009.2018924
  • Filename
    4957820
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=907018