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Superconducting electrical conductor

  • US 4,845,308 A
  • Filed: 07/20/1987
  • Issued: 07/04/1989
  • Est. Priority Date: 07/20/1987
  • Status: Expired due to Fees
First Claim
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1. A superconducting electrical conductor, comprising:

  • an elongated porous substrate of sintered bonded ceramic fibers;

    a coating of ceramic oxide superconducting material on fibers of said substrate;

    an inner tube around said coated substrate with an outer tube surrounding said inner tube, said outer tube defining an annular space with said inner tube which is adapted to be evacuated for producing a thermal barrier, and a layer of electrical and heat insulation on an outer surface of said outer tube; and

    means for supplying a cryogenic fluid through said substrate for cooling said superconducting material to or below its critical temperature of superconductivity.

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