Effects of ball-mill processing on the superconductivity of sucrose doped MgBâ‚‚

Y. Zhang, S. H. Zhou, W. X. Li

    Research output: Chapter in Book / Conference PaperConference Paperpeer-review

    2 Citations (Scopus)

    Abstract

    Good critical current density, Jc(H), performance is found in sucrose doped MgBâ‚‚ samples produced by both ball-milling and hand milling. It has been found that the Jc of the ball-milled doped MgBâ‚‚ sample was 7.0 x 10³ A cmâ»Ã‚² at 5 K and 8 T, which is more than two times higher than for hand-milled doped MgBâ‚‚ and a factor of 70 higher than for the pure reference sample made from as-supplied amorphous boron powder. Significant improvement in Jc at high fields is attributed to the upper critical field, Hcâ‚‚, enhancement caused by the increased disorder.
    Original languageEnglish
    Title of host publicationProceedings of the 9th International Conference on Materials and Mechanisms of Superconductivity (M2S-IX): Tokyo, Japan, September 7 - 12, 2009
    PublisherElsevier
    PagesS710-S711
    Number of pages2
    DOIs
    Publication statusPublished - 2010
    EventInternational Conference on Materials and Mechanisms of Superconductivity -
    Duration: 1 Jan 2010 → …

    Publication series

    Name
    ISSN (Print)0921-4534

    Conference

    ConferenceInternational Conference on Materials and Mechanisms of Superconductivity
    Period1/01/10 → …

    Keywords

    • MgB₂
    • ball milling
    • sucrose
    • superconductivity

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