Tests on multifilamentary Nb$sub 3$Sn superconductors

Conference · Fri Nov 14 04:00:00 EST 1975

OSTI ID:4161801

Zbasnik, J; Vandervoort, R; Taylor, C; Ping, D; Hirzel, D

Developmental work on multifilamentary Nb$sub 3$Sn superconductors produced by the bronze approach is described. Critical current vs field data for several types of conductors capable of carrying approximately 1000 A at 12 T are presented. Specimens with 1.4-$mu$m-diam filaments were very difficult to process and had relatively poor superconducting properties. Specimens with 2.4- $mu$m-diam filaments had good superconducting properties, and a degradation was observed if the samples were reacted too long. The 4.5-$mu$m-diam filament conductor had excellent superconducting properties, and the results indicate that a 2-day reaction at 650$sup 0$C was sufficient to produce these properties. Preliminary versions of a scaled-up conductor had a very broad transition. (auth)

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• NSA Number: NSA-33-007143
• OSTI ID: 4161801
• Report Number(s): UCRL--77235; CONF-751125--18
• Country of Publication: United States
• Language: English

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*SUPERCONDUCTING CABLES-- PERFORMANCE TESTING
*SUPERCONDUCTING MAGNETS-- CONSTRUCTION
*THERMONUCLEAR REACTORS-- SUPERCONDUCTING MAGNETS
700202* --Fusion Energy--Fusion Power Plant Technology-- Magnet Coils & Fields
N70800* --Physics--Controlled Thermonuclear Research-- Thermonuclear Engineering & Equipment
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