Abstract
Published results indicate that high-current-carrying capacities of BSCCO-based conductors have been obtained under the following conditions: (1) monofilamentary conductors with a core thickness less than 30 µm and (2) the largest possible shape factor (30 to 70). When the first condition is feasible for multifilamentary tapes, it generally corresponds to large perturbations of the filament geometry. We succeeded in making several 10-m-long tapes with good filament geometry and a shape factor of more than 60. We present results of structural examination of the filaments, phase stability during thermal treatment, and critical current density. Typical results were 430 A/mm2 at 4.2 K and 15 A/mm2 at 77 K for 45-filament Bi-2223-phase tapes.
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© 1994 Springer Science+Business Media New York
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Duperray, G., Legat, D. (1994). Highly Anisotropic Filaments in BSCCO-Based Multifilamentary Tapes. In: Reed, R.P., Fickett, F.R., Summers, L.T., Stieg, M. (eds) Advances in Cryogenic Engineering Materials . An International Cryogenic Materials Conference Publication, vol 40. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9053-5_24
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DOI: https://doi.org/10.1007/978-1-4757-9053-5_24
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