Fabrication and characterisation of superconducting Bi-2223/Ag tapes with high critical current densities in km lengths

被引:0
作者
Han, Z [1 ]
Bodin, P [1 ]
Wang, WG [1 ]
Bentzon, MD [1 ]
Skov-Hansen, P [1 ]
Goul, J [1 ]
Vase, P [1 ]
机构
[1] Nordic Superconductor Technol AS, DK-2605 Brondby, Denmark
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Long length Bi-2223/Ag tapes with high critical current densities are needed for large-scale applications. In this paper, recent results from NST are being presented, describing recent results reaching critical current densities of 23 kA/cm(2) and engineering critical current densities of 5.2 kA/cm(2) at 77 K over the whole length of a 1250 metre long Bi-2223/Ag tape. To our knowledge this is the highest critical current density reported for Bi-2223/Ag tapes longer than 1 km. The approach for improving the homogeneity and the considerations of processing and handling the long length tape are presented. Various Ag alloy sheathed Bi-2223 tapes have been made by our standard production line. The properties of these tapes are compared.
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页码:2537 / 2540
页数:4
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