Low-loss HTS current leads for magnet applications

• Published in: IEEE transactions on applied superconductivity Vol. 12; no. 1; pp. 1297 - 1300
• Main Authors: Martini, L.F., Barberis, F., Bigoni, L., Curcio, F., Berti, R.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01-03-2002; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Atmospheric measurements; Atomic force microscopy; Conductors; Critical current; Current measurement; Electric potential; Electric variables measurement; Electrical engineering. Electrical power engineering; Electromagnets; Exact sciences and technology; High temperature superconductors; Manufacturing; Refrigeration; Structural integrity; Superconducting magnetic energy storage; Superconductivity; Testing; Thermal conductivity; Thermal cycling; Various equipment and components
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2002.1018640

Current leads incorporating high-temperature superconductors (HTS) have the potential to greatly reduce the refrigeration requirements with respect to conventional leads. However, lead-design considerations include not only electrical and thermal performances of the HTS section, but also its structural integrity and reliability. In this paper, characteristics of low-loss AFM BSCCO-2223/AgAu composite conductors and the influence of thermal cycling between room temperature and 77 K on their critical current are presented and discussed.