When the new YBaCuO superconductors were developed about 18 years ago, the critical maximum current density, at a magnetic field of 1.0 T and at a temperature of 77 K, was still quite low. Roughly 8 years ago, it became possible to raise the critical current density to 106 A/cm2 at 1.0 T and 77 K. This opened up possibilities for applications in self-stabilizing superconducting magnetic bearings and also in maglev trains capable of movement along a track. An important criterion in the high current-carrying capacity of YBaCuO superconductors is the excellent texture of melt-textured YBaCuO moldings, which also must be free of microcracks. Narrow distributions of the a-, b-, and c-axis orientations, in the absence of of isotropic fractions, allow almost the entire mirror flux in the superconductor to be induced by permanent magnets.


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    Title :

    High T(c) superconductors give new impulse to magnetic levitation


    Additional title:

    Supraleiter mit hoher Sprungtemperatur geben neue Impulse für die magnetische Schwebetechnik


    Contributors:
    Jung, V. (author)

    Published in:

    Publication date :

    2001


    Size :

    6 Seiten, 7 Bilder, 27 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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