Development of nb-ti-ta ternary alloy multifilamentary superconducting wire

T. Shimada, K. Wada, S. Meguro, S. Murase, S. Nakayama, T. Orikasa, K. Makishima, K. Watanabe, K. Tsuchiya, A. Yamamoto, T. Nakamoto, T. Shintomi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The superconducting wire with approximately 10 (im diameter filaments of Nb-41wt%Ti28wt%Ta alloy was fabricated from our standard production billet. Critical current densities and upper critical fields after various heat treatments were measured in the temperature range of 4.2 K to 1.6 K. Thermo-mechanical treatments for a-Ti precipitates were optimized to improve critical current densities. A 27strand Rutherford type cable having a large keystone angle was trial-fabricated using the optimized-processed wires. The achieved J/s were 1383 A/mm2 (10 T and 1.9 K) and 602 A /mm2 (12 T and 1.9 K). The fabricated wire was proved to have high homogeneity and good workability.

Original languageEnglish
Pages (from-to)1731-1734
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume9
Issue number2 PART 2
DOIs
Publication statusPublished - 1999 Jan 1

ASJC Scopus subject areas

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

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