Highly-strengthened alumina-copper alloy matrix (Nb,Ti)3Sn conductor fabricated by using the tube process

S. Murase, S. Nakayama, Y. Yamada, K. Shimamura, M. Tezuka, N. Shiga, K. Watanabe, N. Kobayashi

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


In order to fabricate a large-bore, high-field magnet which achieves a low coil weight and volume, a high strength compound superconducting wire is required. The alumina-copper strengthened (Nb,Ti)3Sn wire which contained 30 vol. % alumina-Cu alloy fabricated by using the tube process has been developed and tested for critical current density, mechanical properties, transverse compressive stress effects and related properties. As a result, it was found that the reinforced (Nb,Ti)3Sn wire had high transverse compressive stress tolerance, for example only 3% decrease which was 1/3 of the Cu matrix wire in Ie/Ic0 at 60 MPa and reversibility in lc between 0 and 200 MPa. Using the newly developed reinforced-(Nb,Ti)3Sn wire, it will be possible to fabricate a lightweight, large-bore, high-field and compact superconducting magnet in the near future.

Original languageEnglish
Pages (from-to)2937-2940
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number4 PART 2
Publication statusPublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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