Optimized HTS current leads

Optimized HTS current leads

The problem of optimizing HTS current leads by varying their cross-section along the length is investigated both experimentally and numerically at 500 A current level. Bi-2223-based HTS multi-filament composite tapes were used with two types of matrices: pure Ag and (Ag+1 at.% Au) alloy. The warm en...

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Veröffentlicht in:IEEE transactions on applied superconductivity 1999-06, Vol.9 (2), p.531-534
Hauptverfasser: Gavrilin, A.V., Keilin, V.E., Kovalev, I.A., Kruglov, S.L., Shcherbakov, V.I., Akimov, I.I., Rakov, D.K., Shikov, A.K.
Format: Artikel
Sprache:eng
Schlagworte:
Alloying
COMPOSITES
Cross sections
Electric resistance
Gold alloys
GOLD ALLOYS (50 TO 99 AU)
Gold base alloys
High temperature superconductors
LIQUID NITROGEN
MATHEMATICAL ANALYSIS
Matrices
Multifilamentary superconductors
Nitrogen
Optimization
Superconducting magnets
Superconducting tapes
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TAPE
Temperature measurement
Thermal conductivity
Thermal resistance
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Beschreibung
Zusammenfassung:The problem of optimizing HTS current leads by varying their cross-section along the length is investigated both experimentally and numerically at 500 A current level. Bi-2223-based HTS multi-filament composite tapes were used with two types of matrices: pure Ag and (Ag+1 at.% Au) alloy. The warm ends of the HTS parts of the current leads were cooled with liquid nitrogen. Very low evaporation rates in the case of Au-doped matrix and rather long time constants to reach thermal equilibrium were observed.
ISSN:1051-8223
1558-2515
DOI:10.1109/77.783352