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 language | English |
|---|---|
| Pages (from-to) | 2215-2218 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 9 |
| Issue number | 2 PART 2 |
| DOIs | |
| Publication status | Published - 1 Dec 1999 |
| MoE publication type | A1 Journal article-refereed |
Funding
Manuscript received September 15, 1998. This work was supported in part by the Academy of Finland.