Comparison of different joint configurations between two parallel SS-laminated BSCCO/Ag tapes

Stainless steel laminated BSCCO/Ag tapes are commercially available for HTS pancake magnet development. The joint between pancakes could be achieved in several configurations like straight lap joint, cross-bridge joint and combination of both. Each type of joint shows different characteristic. We ha...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2010-07, Vol.470 (13), p.523-527
Main Authors: Kar, S., Kumar, R., Konduru, P., Datta, T.S.
Format: Article
Language:English
Subjects:
Applied sciences
Electrical engineering. Electrical power engineering
Exact sciences and technology
Heat transfer
Joint resistance
Lap joints
Materials
Silver
SS-laminated BSCCO/Ag tape
Stainless steels
Superconducting tapes
Superconductivity
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Summary:Stainless steel laminated BSCCO/Ag tapes are commercially available for HTS pancake magnet development. The joint between pancakes could be achieved in several configurations like straight lap joint, cross-bridge joint and combination of both. Each type of joint shows different characteristic. We have experimentally studied the characteristic of three types of joint configuration between two pancakes made of SS-laminated BSCCO/Ag tape at 77 K. We have developed two types of cross-bridge joint and one with combination of both straight lap joint and cross-bridge joint. The joint resistance for all three configurations has been compared. The rise in temperature at each joint has been estimated. The joint configuration with the combination of both straight lap joint and cross-bridge joint has given lowest joint resistance which is 0.25 μΩ at 77 K but this configuration has more locally heated zones.
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2010.04.007