Transport characteristics of a CuNb/Nb3Sn superconducting coil fabricated using a react and wind method

Gen Nishijima, Satoshi Awaji, Kazuo Watanabe, Kazutomi Miyoshi, Akio Kimura

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Superconducting magnets wound with conventional Cu/Nb3Sn are designed considering a stress design criterion of 150 MPa. If the highly strengthened CuNb/Nb3Sn wire is used instead of the conventional CuNb/Nb3Sn wire, the stress design criterion of 250 MPa is applicable. Furthermore, the high strength enables us to make the Nb 3Sn superconducting coil using a react and wind method. In order to confirm the stress design criterion of 250 MPa in a CuNb/Nb3Sn coil fabricated by a react and wind method, stress-strain and quench characteristics of the coil were investigated under high electromagnetic stress. The hoop stress of 279 MPa was applied and the measured strain was 0.34%. The quench currents were 50-60% of the critical current for the short sample, and their relevant deterioration of the quench current strongly influenced the large hoop stress. It was confirmed that the design criterion of 250 MPa is adequate for the CuNb/Nb3Sn superconducting coil using the react and wind method.

Original languageEnglish
Pages (from-to)1082-1085
Number of pages4
JournalSuperconductor Science and Technology
Volume16
Issue number9
DOIs
Publication statusPublished - 2003 Sep 1
EventMEMO 3: Second International Workshop on Mechano-Electromagetic Properties of Composite Superconductors - Kyoto, Japan
Duration: 2003 Mar 32003 Mar 5

ASJC Scopus subject areas

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

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