HTS Coated Conductors Developed
for the European Super3C Cable

Alexander Usoskin¹, Alexander Rutt¹, Herbert C. Freyhardt^1,3, Burkhard Prause¹, Klaus Schlenga¹, Jean-Maxime Saugrain², Arnaud Allais², Dag Willén⁴

¹ Bruker HTS GmbH, Siemensstrasse 88, 63755 Alzenau, Germany
² NEXANS, 16, rue de Monceau, 75008 Paris, France
³ TcSUH, University of Houston, 202 UH Science Center, Houston TX 77204, USA
and ZFW gem. GmbH, D-370079 Goettingen, Germany
⁴ Dag Willén; NKT Cables, Brondby, Denmark

Abstract – Within the European Super3C project, a 30m-long one-phase cable was manufactured by employing high-performance coated conductors which were processed by high-rate pulsed-laser deposition of YBCO on stainless-steel tapes coated with an Yttria-Stabilized-Zirconia bi-axially textured buffer layer. This paper briefly summarizes the advanced tape processing, which includes the plating with a copper shunt layer, as well as the lamination of the tapes. Tapes without patterned filaments could be manufactured with homogeneous Ic values along the full length, and rather low AC losses. Their electromechanical performance with satisfactory limits to irreversible degradation and good stability in aggressive environments offer a high degree of reliability in applications.

Keywords - superconducting, YBCO, high temperature superconductor, coated conductors, HTS cable

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Submitted , July 29, 2009; accepted September 8, 2009.  Reference No. ST129; Category 5.