2002
DOI: 10.1063/1.1447011
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Supercurrent dissipation and strain-induced damage in (Bi, Pb)2Sr2Ca2Cu3O10/Ag tape

Abstract: Supercurrent dissipation and strain-induced damage in (Bi, Pb)2Sr2Ca2Cu3O10/Ag high-temperature superconductor composite tape, at 77 K in self-field, are studied by I–V curve analysis. Five dissipation models are considered, and differently processed tapes are compared. After making self-field corrections, which are normally ignored but we find essential to do, collective flux creep stands out as the only dissipation mechanism which explains the data. Confidence in the analysis comes not only from the goodness… Show more

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“…The metallic matrix creates a useful situation in which the hysteretic losses are reduced by the filamentation, whereas the metallic connection between the filaments is sufficient to enable current sharing within the strand. 21,22 However, this leads to a certain amount of "coupling eddy-current loss." This kind of eddy-current loss is proportional to the interfilamentary conductivity, and thus gets worse as current sharing improves.…”
Section: Current Sharingmentioning
confidence: 99%
“…The metallic matrix creates a useful situation in which the hysteretic losses are reduced by the filamentation, whereas the metallic connection between the filaments is sufficient to enable current sharing within the strand. 21,22 However, this leads to a certain amount of "coupling eddy-current loss." This kind of eddy-current loss is proportional to the interfilamentary conductivity, and thus gets worse as current sharing improves.…”
Section: Current Sharingmentioning
confidence: 99%