Title :
Low-loss HTS current leads for magnet applications
Author :
Martini, Luciano F. ; Barberis, Franco ; Bigoni, Luigi ; Curcio, Franco ; Berti, Renza
Author_Institution :
CESI SpA, Milan, Italy
fDate :
3/1/2002 12:00:00 AM
Abstract :
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.
Keywords :
accelerator magnets; bismuth compounds; critical currents; gold alloys; high-temperature superconductors; multifilamentary superconductors; silver alloys; superconducting cables; superconducting magnet energy storage; superconducting magnets; 300 to 70 K; Bi-2223/AgAu composite conductors; BiSrCaCuO-AgAu; SMES systems; accelerator magnets; accordion folding method; burnout endurance; critical current; high fill factor; low-conductivity matrix; low-loss HTSC current leads; multilayered conductors; reduced refrigeration requirements; reliability; structural integrity; temperature dependence; thermal cycling; Atmospheric measurements; Conductors; Critical current; Current measurement; Electric variables measurement; High temperature superconductors; Manufacturing; Superconducting magnetic energy storage; Testing; Thermal conductivity;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2002.1018640
