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INFLUENCE OF TRANSVERSE COMPRESSIVE AND AXIAL TENSILE STRESS ON THE SUPERCONDUCTIVITY OF LEAD-MOLYBDENUM(6)SULPHUR(8) AND TIN-MOLYBDENUM(6)SULPHUR(8) WIRES.

Author(s) : GOLDACKER W.

Type of article: Article

Summary

THE EFFECT OF TRANSVERSE COMPRESSIVE STRESS HAS BEEN MEASURED FOR THE FIRST TIME IN THESE WIRES. FROM THESE INVESTIGATIONS, IT CAN BE CONCLUDED THAT STEEL REINFORCED MONOFILAMENTARY CHEVREL PHASE WIRES HAVE A GOOD MECHANICAL STABILITY AND ELASTIC BEHAVIOUR, STRONGLY DEPENDING ON THE DEGREE OF REINFORCEMENT AND THUS OF THE STATE OF PRECOMPRESSION OF THE FILAMENT. THE SENSITIVITY OF THE CRITICAL CURRENT AND THE UPPER CRITICAL FIELD EITHER TO AXIAL TENSILE STRESS OR TRANSVERSE COMPRESSIVE STRESS IS SIGNIFICANTLY SMALLER THAN THAT OF NIOBIUM-TIN WIRES. THIS IS PROMISING FOR FUTURE APPLICATIONS OF CHEVREL PHASE WIRES AT HIGH MAGNETIC FIELDS EG AS INSERT COILS OF SUPERCONDUCTING MAGNETS OR BITTER COILS. IN LARGE SUPERCONDUCTING COILS TRANSVERSE STRESSES IN THE RANGE 50-100 MEGAPASCALS ARE EXPECTED.

Details

  • Original title: INFLUENCE OF TRANSVERSE COMPRESSIVE AND AXIAL TENSILE STRESS ON THE SUPERCONDUCTIVITY OF LEAD-MOLYBDENUM(6)SULPHUR(8) AND TIN-MOLYBDENUM(6)SULPHUR(8) WIRES.
  • Record ID : 1990-2258
  • Languages: English
  • Source: Cryogenics - vol. 29 - n. 10
  • Publication date: 1989

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