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Recent R&D progress on DI-BSCCO wires with high critical current properties
- Source :
-
Physica C . Nov2011, Vol. 471 Issue 21/22, p1086-1089. 4p. - Publication Year :
- 2011
-
Abstract
- Abstract: Sumitomo Electric has been developing the silver-sheathed Bi2223 multi-filamentary wires since the discovery of Bi-based superconductors. DI-BSCCO is the high performance wires produced with the controlled-overpressure (CT-OP) sintering technique. The present commercial DI-BSCCO can provide the uniform high critical current, Ic , up to 180A over 2000m, and recently 200A were succeeded to obtain with the same kind of 1000m-long wires, resulting from the improvement and control of the microstructure in Bi2223 multi-filaments. The short trial wires of several meter have exhibited over 240A as the highest Ic at 77K, self-field (corresponding to 580A per 1cm-width) according with high Tc over 112K. Besides, the optimization of carrier density after CT-OP led to further enhancement of Ic , reaching 250A. All the derivative products have also uniform critical current property over the entire length even after lamination with the reinforcements. The performances of DI-BSCCO can meet the growing needs for various high temperature superconducting applications involving high in-field properties, such as magnets and motors. The recent progress on Ic including in-field properties along with the remarkable findings on the performances of DI-BSCCO will be shown. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09214534
- Volume :
- 471
- Issue :
- 21/22
- Database :
- Academic Search Index
- Journal :
- Physica C
- Publication Type :
- Academic Journal
- Accession number :
- 66769281
- Full Text :
- https://doi.org/10.1016/j.physc.2011.05.130