English  |  正體中文  |  简体中文  |  Items with full text/Total items : 56437/90265 (63%)
Visitors : 11704149      Online Users : 38
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27727

    Title: Grain size effect on magnetic levitation of YBCO superconducting samples
    Authors: Chan, W. C.;Wang, G.;Lee, J. J.
    Contributors: 淡江大學物理學系
    Date: 1997-08
    Issue Date: 2013-07-09 15:10:23 (UTC+8)
    Publisher: Amsterdam: Elsevier BV * North-Holland
    Abstract: In our previous works, the magnetic levitation force acting on a superconducting single crystal was devided into two parts. The first part, for magnetic field less than the first critical field( Hc1) of the superconducting sample, is explained by using the Meissner effect and is reversible. The second part, for magnetic field larger than He1, is explained by using the Bean's critical state model and is irreversible. For grain size larger than the penetration depth (λ) of the superconducting material, one would expect that larger grain will give larger irreversible part in magnetic levitation force measurement. Experiments were done on epoxy-YBCO samples of ratio 1.3 in mass with four different grain sizes. Results come out as expected. We also have fitted the experimental curves for different grain size with our previous model calculations. Theoretical results agree with experimental measurements quite well.
    Relation: Physica C: Superconductivity and its Applications 282-287(3), pp.1455-1456
    DOI: 10.1016/S0921-4534(97)00832-0
    Appears in Collections:[物理學系暨研究所] 期刊論文

    Files in This Item:

    File SizeFormat

    All items in 機構典藏 are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback