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Torsional Dependence of the Critical Current in 2G Tapes

AuthorsSotelo, Guilherme Gonçalves; Granados, Xavier ; Carrera, Miquel; López López, Josep
Keywords2G superconducting wire
Coated conductor
Twisted wire
Superconducting power cable
Issue DateApr-2016
PublisherInstitute of Electrical and Electronics Engineers
CitationIEEE Transactions on Applied Superconductivity 26(3): 6602505 (2016)
AbstractSince the second generation (2G) superconducting wires started to be produced in a large scale almost a decade ago, the quality of the materials manufactured has been continually improved. Every year the manufacturers present new materials with better electrical properties, increasing the critical current density, critical magnetic field and the total length produced with continuous homogeneity. The mechanical properties of the coated conductor should be taken in account, since electro-dynamical forces appear in working conditions as stress in the cooling and heating processes. In applications as fault current limiters, SMES, transformers, electromagnets, motors, cables, etc., the consideration of them is mandatory to the project of those devices. In this context, the present work studies the electrical and mechanical properties of 12 mm 2G wires samples under torsion without axial tension. Critical current is measured as a function on the torsion angle. Details of the experiment and their results are here presented.
Publisher version (URL)http://dx.doi.org/10.1109/TASC.2016.2533581
Appears in Collections:(ICMAB) Artículos
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