NB3SN Multifilamentary Wires with Cunb Reinforcing Stabilizer

K. Watanabe, A. Hoshi, S. Awaji, K. Katagiri, K. Noto, K. Goto, M. Sugimoto, T. Saito, O. Kohno

Research output: Contribution to journalLetterpeer-review

28 Citations (Scopus)

Abstract

A bronze processed multifilamentary Nb3Sn superconducting wire,CuNb/Nb3Sn, with CuNb reinforcing stabilizer, which exhibited a residual resistance ratio of 20 and a magnetoresistance of 0.2 μQ, cm at 23 T and 4.2 K, was newly developed. The yield stress at 4.2 K for CuNb/Nb3Sn was noticeably improved and the value of 22 kg/mm2 was obtained even after the heat-treatment of Nb3Sn formation at 700 -C for 200 hours. The strain effect of Jc for CuNb/Nb3Sn was described well by using the upper critical field in the prestrain state. It was verified that the CuNb/Nb3Sn wire has the performance enough for both mechanical and superconducting properties under an enormous electromagnetic force in high magnetic fields.

Original languageEnglish
Pages (from-to)1006-1009
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume3
Issue number1
DOIs
Publication statusPublished - 1993 Mar

ASJC Scopus subject areas

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

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