The influence of coarsening treatments upon properties of in situ Nb/sub 3/Sn - Cu superconducting wire

Journal Article · Sun May 01 04:00:00 EDT 1983 · IEEE Trans. Magn.; (United States)

DOI:https://doi.org/10.1109/TMAG.1983.1062502· OSTI ID:5483246

Verhoeven, J; Finnemore, D; Gibson, E; Laabs, F; Ostenson, J

A controlled coarsening step is shown to offer a technique for greatly extending the range of wire reductions possible in the manufacture of in situ Nb/sub 3/Sn-Cu superconducting wire. Experiments have been carried out in which Cu-30 wt % Nb in situ Nb/sub 3/Sn-Cu wires have been prepared employing a coarsening anneal at 750 and 1000/sup 0/C prior to final reduction to wire size. Results show that coarsening treatments may be utilized to achieve optimum control of filament sizes in order to maximize J /SUB c/. Values of J /SUB c/ equivalent to those of uncoarsened wires are obtained and information is presented on contact welding of Nb/sub 3/Sn filaments in in situ wires.

• Research Organization: Ames Lab. - USDOE Depts. of Materials Science and Eng. and of Physics, Iowa State Univ., Ames, IA 50011
• OSTI ID: 5483246
• Journal Information: IEEE Trans. Magn.; (United States), Journal Name: IEEE Trans. Magn.; (United States) Vol. 19:3; ISSN IEMGA
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOY SYSTEMS
ALLOYS
COPPER
ELEMENTS
FABRICATION
FILAMENTS
IN-SITU PROCESSING
INTERMETALLIC COMPOUNDS
JOINING
MANUFACTURING
METALS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
PROCESSING
SUPERCONDUCTING WIRES
TERNARY ALLOY SYSTEMS
TIN ALLOYS
TRANSITION ELEMENTS
WELDING
WIRES