MULTIFILAMENTARY VANADIUM-GALLIUM WIRES AND TAPES WITH COMPOSITE CORES.

Author(s) : SHARMA R. G., TANAKA Y., TACHIKAWA K.

Type of article: Article

Summary

RESULTS ON THE CRITICAL CURRENT BEHAVIOUR OF 19 CORE COMPOSITE SUPERCONDUCTING WIRES AND TAPES IN MAGNETIC FIELDS UP TO 9 T ARE REPORTED. THE COMPOSITE CORES USED ARE VANADIUM TUBES FILLED WITH COPPER-GALLIUM MATRIX. TWO VANADIUM-GALLIUM LAYERS ARE FORMED ON EITHER SIDE OF THE TUBULAR VANADIUM. FOR A GIVEN MATRIX VOLUME TO VANADIUM SURFACE AREA RATIO, THE INNER VANADIUM-GALLIUM LAYER HAS MUCH FASTER GROWTH RATE AND CONSEQUENTLY FINER GRAINS THAN THE CORRESPONDING OUTER LAYER. AN INCREASE OF ABOUT 50% IN OVERALL CRITICAL CURRENT DENSITY COMPARED TO THE 19 CORE WIRES USING THE SAME STARTING MATERIALS BUT PREPARED WITH CONVENTIONAL GEOMETRY HAS BEEN OBTAINED.

Details

  • Original title: MULTIFILAMENTARY VANADIUM-GALLIUM WIRES AND TAPES WITH COMPOSITE CORES.
  • Record ID : 1986-0477
  • Languages: English
  • Source: Cryogenics - vol. 25 - n. 7
  • Publication date: 1985

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