Mechanical characteristics of Bi-2223 tape with a low matrix ratio

Gen Nishijima, Satoshi Awaji, Kazuo Watanabe, Koichiro Hiroi, Kazumune Katagiri

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A 19 T cryocooled superconducting magnet with a 52 mm room temperature bore is currently under construction. The magnet consists of an outer NbTi section, middle Nb3Sn section and innermost high-Tc section. The coils are exposed to an electromagnetic hoop stress following the magnetic field generation. In this 19 T cryocooled superconducting magnet, the high-Tc coil windings are Bi-2223 tapes with a low matrix ratio. Because of this, the mechanical characteristics, i.e., stress-strain characteristics, stress/strain dependence of the critical current and bending strain dependence of the critical current, were explored for the Bi-2223 tape. Furthermore, the small coil was wound with the superconducting tape. It was tested under magnetic fields to examine the stress-strain characteristics caused by the electromagnetic hoop stress.

Original languageEnglish
Pages (from-to)47-50
Number of pages4
JournalSuperconductor Science and Technology
Volume18
Issue number1
DOIs
Publication statusPublished - 2005 Jan 1

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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