Advances in the development of HTS composite conductors

• Published in: Applied superconductivity 1995, Vol.3 (1), p.1-5
• Main Authors: Rupich, M.W., Riley, G.N., Carter, W.L., Miles, P.K., Gannon, J.J., Li, Q., Parker, D.R., Christopherson, C., Masur, L.J.
• Format: Article
• Language: English
• Subjects: Applied sciences; Electrical engineering. Electrical power engineering; Exact sciences and technology; Materials
• ISSN: 0964-1807; 1879-1530
• DOI: 10.1016/0964-1807(95)00024-Y

The performance of high-temperature superconductor (HTS) composite conductors is rapidly advancing. Filament current densities of greater than 32,000 A/cm 2 (77 K, self field, 1 μV/cm) have been achieved in multifilamentary composite conductors prepared with scaleable powder in tube techniques. This has allowed the fabrication of composite conductors with overall conductor current densities of 9100 A/cm 2. These advances are being applied to the manufacture of composite conductors with lengths in excess of 1 km and filament currents densities of 8900 A/cm 2 (77 K, self field, 1 × 10 −11 Ω-cm). Recent advances in the development of high J c composite conductors will be reviewed. The performance and characterization of long length conductors will be described and the integration of these conductors into practical applications will be reported.