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SUPERCONDUCTING CRITICAL-CURRENT DENSITIES OF COMMERCIAL MULTIFILAMENTARY NIOBIUM3-TIN (TITANIUM) WIRES MADE BY THE BRONZE PROCESS.

Author(s) : SUENAGA M.

Type of article: Article

Summary

SUPERCONDUCTING CRITICAL-CURRENT DENSITIES IN FIELDS UP TO 24 T AND AT 4.2 AND 1.8 K WERE MEASURED FOR A NUMBER OF COMMERCIAL NIOBIUM3-TIN WIRES WHICH WERE ALLOYED WITH TITANIUM. THE BEST VALUES AT 20 T AND AT 4.2 AND 1. 8 K WERE 78 AND 156 A/MM2, RESPECTIVELY, VALUES APPROXIMATELY 10 AND 4 TIMES GREATER THAN VALUES FOR THE BEST < PURE > NIOBIUM3-TIN WIRE FOR THESE MEASUREMENT PARAMETERS. IN ORDER TO ACHIEVE THESE HIGH CURRENT DENSITIES AT H HIGHER THAN 20 T, IT WAS SHOWN THAT NONUNIFORMITY OF THE FILAMENTS HAD TO BE MINIMIZED AND THAT THE GRAIN SIZE OF NIOBIUM3 -TIN IS NOT VERY IMPORTANT. ACHIEVING HIGH VALUES OF CRITICAL MAGNETIC FIELD IS MORE IMPORTANT THAN SMALL GRAIN SIZE.

Details

  • Original title: SUPERCONDUCTING CRITICAL-CURRENT DENSITIES OF COMMERCIAL MULTIFILAMENTARY NIOBIUM3-TIN (TITANIUM) WIRES MADE BY THE BRONZE PROCESS.
  • Record ID : 1985-2282
  • Languages: English
  • Source: Cryogenics - vol. 25 - n. 3
  • Publication date: 1985

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