DocumentCode
1074240
Title
Some Factors Involved in the Development of a Tubular Process for Nb3Sn Conductors
Author
Gregory, E. ; Zeitlin, B.A. ; Tomsic, M. ; Peng, X. ; Sumption, M.D. ; Collings, E.W.
Author_Institution
Supergenics I LLC, Jefferson
Volume
17
Issue
2
fYear
2007
fDate
6/1/2007 12:00:00 AM
Firstpage
2664
Lastpage
2667
Abstract
A process designed to produce Nb3Sn conductors by simply restacking Nb 7.5 wt.%Ta tubes with Cu-clad Sn cores is being explored. Previous work has shown that, in this tubular process, the A-15 compound forms in a somewhat different manner from that in the conventional internal-tin process. It was necessary therefore to determine if this had a significant effect on the properties of the A-15 formed. This was done with subelements containing different percentages of Nb 7.5 wt.%Ta, Sn and Cu. The initial work on single subelements has been extended to include restacks with relatively large numbers of subelements. The critical current density (Jc) of the various designs is reported and some of the factors involved in optimizing the properties are discussed.
Keywords
critical current density (superconductivity); niobium alloys; tin alloys; type II superconductors; A-15 compound; Nb3Sn - Binary; critical current density; internal-tin process; tubular process; tubular superconductors; Assembly; Conductors; Costs; Critical current density; Design optimization; Magnetic materials; Magnets; Niobium; Process design; Tin; Copper; niobium; tin; tubular superconductors;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2007.899990
Filename
4278114
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