High critical currents in cold-powder-metallurgy-processed superconducting Cu-Nb-Sn composites
- 1 June 1979
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 34 (11) , 763-766
- https://doi.org/10.1063/1.90665
Abstract
Cold‐powder‐metallurgy‐processed superconducting Cu‐Nb‐Sn (discontinuous) multifilamentary composites have been fabricated. Overall critical current Jc comparable to the best in situ and commercial multifilamentary Nb3Sn (scaled for the same Nb content) have been achieved. Values of Jc approximately 105 A/cm2 at 12 T, 5×104 A/cm2 at 14 T, and 2×103 A/cm2 at 18 T are observed for a material with Cu–40 wt.% Nb–20 wt.% Sn with respect to Cu. The physical characteristics of the starting materials and some advantages of the cold‐powder‐metallurgy process are discussed.Keywords
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