Strain effects of high strength Nb3Sn wire reinforced by jelly-rolled Nb/Cu composite and modification of the reinforcement

Genzo Iwaki, Junichi Sato, Kazumune Katagiri, Kazuo Watanabe

Research output: Contribution to journalConference articlepeer-review

11 Citations (Scopus)


We are in the process of developing high strength Nb3Sn wires reinforced by unique Nb/Cu composites made in a jelly-rolling process to miniaturize high field magnets. A bronze-processed (Nb,Ti)3Sn superconducting wire incorporating the composite with a high Nb volume fraction has been made. The wire has shown a high 0.2% proof stress at 4.2 K of 350 MPa. The strain effects such as uni-axial strain dependence and bending strain tolerance on the critical current were examined this time. The influence of the Nb volume fraction in the jelly-rolled composite reinforcement was also investigated to improve the electrical conductivity of the reinforcement.

Original languageEnglish
Pages (from-to)3631-3634
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number1 III
Publication statusPublished - 2001 Mar 1
Event2000 Applied Superconductivity Conference - Virginia Beach, VA, United States
Duration: 2000 Sep 172000 Sep 22


  • Bending strain tolerance
  • High strength NbSn wire
  • Nb/Cu jelly-rolled composite reinforcement
  • Uni-axial tensile strain dependence

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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