DocumentCode
78635
Title
Critical Current Density and Current Transfer Length of Multifilamentary 
Strands of Various Design
Author
Li, G.Z. ; Reddy, K.M. ; Zwayer, Jake B. ; Kuldell, M.A. ; Susner, M.A. ; Yang, Yi ; Sumption, M.D. ; Yue, J.J. ; Rindfleisch, M.A. ; Tomsic, M.J. ; Thong, C.J. ; Collings, E.W.
Author_Institution
Dept. of Mater. Sci. & Eng., Ohio State Univ., Columbus, OH, USA
Volume
23
Issue
3
fYear
2013
fDate
Jun-13
Firstpage
6200204
Lastpage
6200204
Abstract
In this paper, a series of high-performing powder-in-tube MgB2 strands have been prepared. Transport voltage-current measurements were performed to determine the effects of C doping and strand geometry such as filament numbers. The best Jc for our samples was 1.0 × 105 A/cm2 at 4.2 K, 7 T, for a strand using B powder with 3% C addition. The current transfer length was also measured for MgB2 short wires with Nb chemical barrier and Monel outer sheath. The current transfer length ranged from 2 to 12 mm, and had a correlation with the filament numbers.
Keywords
critical current density (superconductivity); magnesium compounds; multifilamentary superconductors; type II superconductors; MgB2; Monel outer sheath; chemical barrier; critical current density; current transfer length; doping; high-performing powder-in-tube; multifilamentary strands; transport voltage-current property; Critical current density; Current measurement; Doping; Multifilamentary superconductors; Niobium; Voltage measurement; Wires; $n$
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2012.2230293
Filename
6363556
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