HIGH-TEMPERATURE SUPERCONDUCTOR ARRANGEMENT

    公开(公告)号:CA2251488A1

    公开(公告)日:1999-04-24

    申请号:CA2251488

    申请日:1998-10-22

    Abstract: Ceramic high-temperature superconductors (1) which are intended to be used as current limiters in alternating-current lines should have a bypass layer (2) whose electrical resistivity is increased by more than times with respect to that of a pure noble-metal bypass layer. In order to achieve this, the noble-metal bypass layer (2) of the high-temperature superconductor (1), preferably of silver, is alloyed with a base metal, preferably Pb or Bi or Ga, by a thermal treatment. The ratio of the bypass layer thickness (d2) of the noble-metal bypass layer (2) to the superconductor layer thickness (d1) is adjusted to 0.5 x p3/d3, where p2 and p3 are the electrical resistivity of the noble-metal-containing bypass layer (2) and the base-metal bypass layer (3, 3'), respectively.

    36.
    发明专利
    未知

    公开(公告)号:AT510337T

    公开(公告)日:2011-06-15

    申请号:AT06405368

    申请日:2006-08-25

    Abstract: A heat siphon (3) that serves as a contact pressure unit has a peripheral wall (30) which is designed for areal contact with the surface to be cooled (12). The contact pressure unit mechanically prestresses the contact wall in order to produce an areal contact pressure of the contact face against the surface to be cooled when the cooling device is fastened to the electrical operating unit. An independent claim is also included for a producing method for a cooling device.

Patent Agency Ranking