NDLI: Conductor Characterization of YBCO Twisted Stacked-Tape Cables

Content Provider	IEEE Xplore Digital Library
Author	Takayasu, M. Mangiarotti, F.J. Chiesa, L. Bromberg, L. Minervini, J.V.
Copyright Year	2002
Abstract	Cable performances of a flat high temperature superconductor (HTS) tape cable fabricated by twisted stacked-tape cable (TSTC) method were experimentally evaluated under various bending diameters at 77 and 4.2 K in self-field. The straight conductor was made with 32 YBCO tapes and twisted using the TSTC method. The 32-tape YBCO TSTC straight conductor was soldered, and then the critical currents were tested at various bending diameters between 1 m and 140 mm. The critical current at a bending diameter of 140 mm was about 6% lower than the straight cable. The same cable with a bending diameter of 250 mm was charged to 10 kA in one second in liquid helium. A new magnet winding technique, stacked-tape twist-wind (STTW), of YBCO tapes using the TSTC concept has been developed, and a 2.3-m, 50-tape YBCO tape coil fabricated with this method was tested. Its critical current was 4.0 kA at 100 μV/m at 19.7 T in liquid helium. It was observed that for an electromagnetic Lorentz force of 50 kN/m the soldered YBCO cable started degrading. A curved saddle coil winding using a STTW technique was demonstrated.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	4800104
Ending Page	4800104
Page Count	1
File Size	448820
File Format	PDF
ISSN	10518223
Volume Number	23
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Yttrium barium copper oxide Windings Superconducting cables Conductors Coils Power cables Critical current YBCO High temperature superconducting (HTS) cable HTS magnet saddle coil stacked tape cable twist
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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