Electrical characterization of REBCO Roebel cables

Jérôme Fleiter (1, 2) , A. Ballarino (1) , L. Bottura (1) , Pascal Tixador (3, 4)

1 CERN [Genève]
2 UGA [2016-2019] - Université Grenoble Alpes [2016-2019]
3 NEEL - MagSup - Magnétisme et Supraconductivité
4 Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology

In the quest for high-current high-temperature superconducting (HTS) cables suitable for application to high-field magnets, the Roebel cable made from (RE)-Ba2Cu3O7−δ (RE for rare earth: Y, Sm, Gd, Dy or a mixture of them) coated conductors is identified as meeting the requirements for high-current capability, compactness, transposition and good mechanical properties. In accelerator high-field magnets, Roebel cables will be operated in liquid helium at 4.2 K or lower temperatures. Previous papers have reported on the electrical characterization of Roebel cables at 77 K, but measurements at 4.2 K have not been published yet. This paper summarizes the results of the critical current measurements performed at CERN on (RE)-Ba2Cu3O7−δ Roebel cables at 4.2 K and in external fields of up to 9.6 T.

Domaines: Energie électrique

Jérôme Fleiter, A. Ballarino, L. Bottura, Pascal Tixador. Electrical characterization of REBCO Roebel cables. Superconductor Science and Technology, 2013, 26 (6), pp.065014. ⟨10.1088/0953-2048/26/6/065014⟩. ⟨hal-00982153⟩