Development and investigation of multifilamentary Nb/sub 3/Sn conductors to be used in the ITER magnetic system

Problems of manufacturing wires for the ITER magnetic system are considered. Results for Nb/sub 3/Sn wires 0.80-0.85 mm in dia. manufactured using bronze technology under commercial conditions are given. Wires containing up to 45,000 filaments with volume fractions of copper stabilizer up to 56%, ch...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1994-07, Vol.30 (4), p.2316-2319
Main Authors: Nikulin, A., Shikov, A., Silaev, A., Vorobjova, A., Pantsyrny, V., Davydov, I., Belyakov, N., Mareev, K., Trokhachev, G., Filatov, O.
Format: Article
Language:English
Subjects:
Conductors
Critical current
Current measurement
Doping
Magnetic field measurement
Magnetic hysteresis
Niobium
Tin
Titanium
Wires
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Summary:Problems of manufacturing wires for the ITER magnetic system are considered. Results for Nb/sub 3/Sn wires 0.80-0.85 mm in dia. manufactured using bronze technology under commercial conditions are given. Wires containing up to 45,000 filaments with volume fractions of copper stabilizer up to 56%, chromium coatings 2 mm thick and having critical current densities (non-Cu) up to 650 A/mm/sup 2/ (12T, 4.2K) are discussed. Wires with extended tin sources and volume fractions of copper stabilizer equal to 60% are investigated. J/sub c/ (non-Cu) for such wires 0.85 mm in dia. reaches 1000 A/mm/sup 2/ (12T, 4.2K) with hysteresis losses
ISSN:0018-9464
1941-0069
DOI:10.1109/20.305739