Field dependence of the critical current and its relation to the anisotropy of BSCCO conductors and coils

Share/Save/Bookmark

Weijers, H.W. and Haken, B. ten and Kate, H.H.J. ten and Schwartz, J. (2005) Field dependence of the critical current and its relation to the anisotropy of BSCCO conductors and coils. IEEE Transactions on Applied Superconductivity, 15 (2, Par). pp. 2558-2561. ISSN 1051-8223

open access
[img]
Preview
PDF
189kB
Abstract:The design of HTS magnets is often based on the properties of a number of short samples that are presumed to be representative of the conductor to be used. Variability in conductor properties and inhomogeneity in the magnetic field distribution within the magnets, coupled with conductor anisotropy, provide a significant challenge to accurately predict the field dependence of the magnet critical current. This work is based on measured superconducting properties of Bi-2212 and Bi-2223 conductors at 4.2 K in parallel and perpendicular magnetic fields up to 33 T. Properties of double pancake units and stacks, from the same or similar conductor batches, are presented, based on measurements at self-field and in applied co-axial background magnetic fields up to 19 T. Modeling of this data is based on short sample properties in perpendicular field; the average grain misalignment is used as the parameter to quantify the anisotropy. Correlations and discrepancies between the measured data and models based on short sample data are discussed for Bi-2212 and Bi-2223 conductors.
Item Type:Article
Copyright:© IEEE 2005
Faculty:
Science and Technology (TNW)
Research Group:
Link to this item:http://purl.utwente.nl/publications/58989
Official URL:http://dx.doi.org/10.1109/TASC.2005.847650
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 227889