Toward an accurate scaling relation for the critical current in niobium-tin conductors

Share/Save/Bookmark

Godeke, Arno and Haken, Bennie ten and Kate, Herman H.J. ten (2002) Toward an accurate scaling relation for the critical current in niobium-tin conductors. IEEE Transactions on Applied Superconductivity, 12 (1). pp. 1029-1032. ISSN 1051-8223

open access
[img]
Preview
PDF
228kB
Abstract:Until a few years ago, a set of equations commonly referred to as the Summers relations gave the most accurate description of the critical current in Nb/sub 3/Sn conductors as a function of applied field, temperature and axial strain. Although highly empirical, they describe reasonably well the critical current data of past Nb/sub 3/Sn conductors. New data from various types of Nb/sub 3/Sn conductors, as well as recent analysis of the ITER CS model coil results reveal however, that this description lacks the precision, required to correlate the conductor data to the model coil results. This discrepancy, attributed to the highly empirical background for the relations, manifests itself mainly in the strain- and temperature dependence. The development of an alternative, more accurate description of the behavior of the critical current, starting from a more fundamental description of the strain dependence, has been initiated. At the moment, the development concentrates around the improvement of the temperature dependency relations to achieve a better accuracy of the overall descriptions, especially in the high temperature region.
Item Type:Article
Copyright:©2002 IEEE
Faculty:
Science and Technology (TNW)
Research Group:
Link to this item:http://purl.utwente.nl/publications/43487
Official URL:http://dx.doi.org/10.1109/TASC.2002.1018576
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 206748