Analysis of a Joint Method Between Superconducting YBCO Coated Conductors

This paper deals with an analysis on the optimum lap joint method of the YBCO coated conductor (CC) wire. Effective low resistance joint is important for the development of persistent current mode system using the second generation high temperature superconducting (2G HTS) wire, YBCO CC. CC tape is...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2007-06, Vol.17 (2), p.3266-3269
Main Authors: Dong Keun Park, Min Cheol Ahn, Ho Min Kim, Lee, H.G., Ki Sung Chang, Sand Jin Lee, Seong Eun Yang, Tae Kuk Ko
Format: Article
Language:English
Subjects:
Applied sciences
Carbon capture and storage
Coated conductor
COATINGS
Conductors
Contact resistance
COPPER OXIDE
Design. Technologies. Operation analysis. Testing
Electric connection. Cables. Wiring
Electric wire
ELECTRICAL CONDUCTORS
Electrical engineering. Electrical power engineering
Electronics
Exact sciences and technology
High temperature superconductors
Integrated circuits
joint
lap joint
Persistent currents
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Silver
SOLDERING ALLOYS
Solders
splicing joint
stabilizer
Steel
Superconducting epitaxial layers
Superconducting filaments and wires
Superconducting films
Superconducting tapes
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TAPE
Various equipment and components
WIRE
YBCO
YBCO superconductors
Yttrium barium copper oxide
YTTRIUM OXIDE
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Summary:This paper deals with an analysis on the optimum lap joint method of the YBCO coated conductor (CC) wire. Effective low resistance joint is important for the development of persistent current mode system using the second generation high temperature superconducting (2G HTS) wire, YBCO CC. CC tape is stacked with copper or stainless steel stabilizer, silver layer, YBCO layer, buffer and substrate. The joint between CCs was performed with low temperature InBi solder. YBCO samples with various contact conditions were fabricated and tested. Characteristics of jointed CC tape were evaluated from the V-I curve and contact resistance was derived from experimental results. Characteristics of jointed CC were investigated by electrical analysis and optical micrograph. The BSCCO wires were jointed at different conditions, and the results were compared with the joint between the YBCO CCs.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2007.899590