Proceedings chapter/article (contribution published in proceedings)
English

Hot rolling of silver sheathed Bi(2223) tapes

Presented at1993
Published inEtourneau, J. ; Torrance, Jerry B. ; Yamauchi, H. & Niku-Lari, A. (Ed.), ICMAS-93: superconducting materials, p. 365-369
PublisherGournay sur Marne : IITT-International
Collection
  • Technology transfer series
Publication date1993
Abstract

Silver sheathed Bi(2223) tapes have been prepared using hot rolling at 800°C. A new rolling apparatus with rolls heated up to 850°C was developed. At 77K and 0T, a critical current density of 18000 A/cm² has been measured. The field dependence of the critical current was investigated at 77K and at 4.2K. The critical current decreased by a factor of 5 at 77K and 1T and 2.1 at 4.2K and 15T with respect to the value at zero field. The decrease rate for fields higher than 0.3T at 77K and higher than 5T at 4.2K was lower than for cold rolled tapes of comparable critical current density. Microstructural and X-ray diffraction analyses have been performed. The hot rolled tapes show higher density and better grain alignment compared to cold rolled tapes.

Keywords
  • Critical current density
  • Grain alignment
  • Applications of high-Tc superconductors
  • Hot deformation
Citation (ISO format)
PERIN, Antonio et al. Hot rolling of silver sheathed Bi(2223) tapes. In: ICMAS-93: superconducting materials. Etourneau, J. ; Torrance, Jerry B. ; Yamauchi, H. & Niku-Lari, A. (Ed.). Gournay sur Marne : IITT-International, 1993. p. 365–369. (Technology transfer series)
Main files (1)
Proceedings chapter (Published version)
accessLevelRestricted
Identifiers
  • PID : unige:117910
ISBN2907669281
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