Development of a pre-bent react-and-wind CuNb/Nb3Sn multilayer superconducting coil

G. Nishijima, Hidetoshi Oguro, Satoshi Awaji, Kazuo Watanabe, H. Tsubouchi, Y. Mikami, T. Kiyoshi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


A superconducting multilayer coil using CuNb/Nb3Sn wire was fabricated by the pre-bent react-and-wind (R&W) method. The pre-bent R&W method is a combination of the pre-bending treatment and the conventional R&W process. A 0.8% pre-bending strain was applied by ten fixed pulleys. The coil was tested in magnetic fields of 14, 12, 11 and 10 T at 4.2 K. The coil quench current achieved 100% load ratio of the short sample critical current in the 14 T back-up field. The quench current of the outer section coil achieved 100% of the short sample critical current in the 12 T back-up field. The coil quench currents in various magnetic fields are discussed from a hoop stress and mechanical disturbance point of view.

Original languageEnglish
Article number054012
JournalSuperconductor Science and Technology
Issue number5
Publication statusPublished - 2008 May 1

ASJC Scopus subject areas

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


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