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HIGH-STRENGTH HIGH-CONDUCTIVITY COPPER-NIOBIUM COMPOSITE WIRES.

[In Japanese. / En japonais.]

Author(s) : MATSUKAWA M.

Type of article: Article

Summary

MECHANICAL ELECTRICAL PROPERTIES WERE STUDIED FOR SEVERAL SAMPLES PREPARED BY INDUCTION MELTING IN A CALCIUM OXIDE CRUCIBLE AND DRAWING. THESE COMPOSITES HAD LARGE YIELD STRESSES ABOVE 50 KG/MM2 (500 MEGAPASCALS), EVEN AFTER ANNEALING AT 1,023 K (750 DEG C) FOR 1 HOUR. MOREOVER, ANNEALED WIRES SHOW MAGNETORESISTANCE OF ABOUT 0.25 MICRO-OHM/CM AT HIGH FIELD OF 15 T. IT WAS FOUND THAT COPPER-NIOBIUM COMPOSITE WIRES ARE APPLICABLE NOT ONLY TONORMAL CONDUCTORS IN HIGH FIELDS, BUT ALSO TO REINFORCING STABILIZERS FOR LARGE-SCALE AND/OR HIGH-FIELD SUPERCONDUCTING WIRES.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1991-0520
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 25 - n. 4
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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