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LOW RESISTIVITY CONTACTS TO YBACUO SUPERCONDUCTORS USING SILVER-OXIDE POWDER.

Author(s) : YOKOYAMA S.

Type of article: Article

Summary

LOW RESISTIVITY CONTACTS TO BULK SPECIMENS OF THESE SUPERCONDUCTORS WITH SILVER HAVE BEEN DEVELOPED. IN ORDER TO OBTAIN HOMOGENEOUS MIXTURES THE AUTHORS USED SILVER-OXIDE POWDER. THE CONTACT RESISTIVITY OF 0.19 MICRO-OHM. CM2 WAS OBTAINED BY ANNEALING THE SPECIMEN AT HIGH TEMPERATURE. THE CONTACT WAS MADE TO THE SPECIMEN WHICH WAS THEN EXPOSED TO AIR FOR 110 DAYS: THE CONTACT RESISTIVITY AFTER THIS PERIOD HAD ELAPSED WAS ALMOST THE SAME AS THE CONTACT MADE TO THE FRESH SPECIMEN. IT WAS FOUND THAT ALL THE SILVER-OXIDE IN THE SUPERCONDUCTOR, WAS SEPARATED TO SILVER AND THAT SILVER EXISTED IN ALL VOIDS.

Details

  • Original title: LOW RESISTIVITY CONTACTS TO YBACUO SUPERCONDUCTORS USING SILVER-OXIDE POWDER.
  • Record ID : 1989-1692
  • Languages: English
  • Source: Cryogenics - vol. 28 - n. 11
  • Publication date: 1988

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