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

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

1297

Lastpage

1300

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;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018640

Filename

1018640