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Formation of YBaCu-O System Superconductor by Thermal Spraying(Materials, Metallugy & Weldability)

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Abstract

The YBaCu-O and Bi (Pb) SrCaCu-O system superconductor coatings by thermal spraying are described. YBaCu-O system superconductor coatings are sprayed by using perovskite type and non perovskite type powders. As sprayed coatings are not superconducting and there is no perovskite structure even when perovskite type powders are used, but they become superconducting after heat treatment in air. An electro-chemical method was also employed, to obtain a high quality superconductor applying an electric field treatment. Bi (Pb) SrCaCu-O system superconductor coatings are sprayed by changing the starting composition. As-sprayed coatings were not superconducting, but they become superconducting after heat treatment in air like the YBaCu-O system. The Tc of the sprayed coatings using (Bi_<1-x>Pb_x)_5Sr_3 Ca_2 Cu_3-O powders is higher than the Tc of sprayed coatings using (Bi_<1-x>Pb_x)_2 Sr_2 Ca_2 Cu_3-O powders.

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Details

  • CRID
    1570854177302111104
  • NII Article ID
    110006486935
  • NII Book ID
    AA00867058
  • ISSN
    03874508
  • Text Lang
    en
  • Data Source
    • CiNii Articles

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