Автор |
E Preisler |
Автор |
J Bayersdorfer |
Автор |
M Brunner |
Автор |
J Bock |
Автор |
S Elschner |
Дата выпуска |
1994-06-01 |
dc.description |
High-current applications of high-temperature superconductor form parts (e.g. plates, rods, tubes) need connections to conventional (copper) current leads of resistivities below 10 mu Omega cm<sup>2</sup>. Bismuth-based BSCCO 2212 parts can be contacted by two different methods: (i) the conventional covering of the surface with gold or silver by sputtering or by vapour deposition, which always needs a post-deposition thermal treatment, and (ii) applying silver sheet to the superconductor part during its fabrication by a melt casting process. In both cases resistivities of 1-3 mu Omega cm<sup>2</sup> at 77 K could be achieved. Experiments and theoretical considerations to localize the partial resistances within the connection demonstrate that the interfacial resistivity of melt processed contacts, as well as sputtered or vapour deposited contacts after heat treatment, are lower by about one order of magnitude than the resistivity of the total connection. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Electrical contacts on bismuth-based bulk high-temperature superconductors in high-current applications |
Тип |
paper |
DOI |
10.1088/0953-2048/7/6/010 |
Electronic ISSN |
1361-6668 |
Print ISSN |
0953-2048 |
Журнал |
Superconductor Science and Technology |
Том |
7 |
Первая страница |
389 |
Последняя страница |
396 |
Аффилиация |
E Preisler; Werk Knapsack, Hoechst AG, Hurth, Germany |
Аффилиация |
J Bayersdorfer; Werk Knapsack, Hoechst AG, Hurth, Germany |
Аффилиация |
M Brunner; Werk Knapsack, Hoechst AG, Hurth, Germany |
Аффилиация |
J Bock; Werk Knapsack, Hoechst AG, Hurth, Germany |
Аффилиация |
S Elschner; Werk Knapsack, Hoechst AG, Hurth, Germany |
Выпуск |
6 |