Influence of microcracks and anisotropie conductivity on critical current and exponent n in silver-sheathed HTS tapes

Jaakko Paasi, Aki Korpela

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The influence of filament non-uniformities (microcracks) and anisotropic conductivity on critical current and exponent n of the current-voltage characteristic of HTS/Ag tape conductors was studied numerically by the means of the finite element method. According to the results, non-uniformities reduce the critical current of the conductor, the reduction by a crack being higher in the cases of anisotropic than isotropic conductivity, but their influence on exponent n is negligible. The result suggests that the low -values of HTS/Ag conductors are due to intrinsic effects such as thermally activated flux creep.

Original languageEnglish
Pages (from-to)2215-2218
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume9
Issue number2 PART 2
DOIs
Publication statusPublished - 1 Dec 1999
MoE publication typeA1 Journal article-refereed

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