Second generation YBCO coated conductors： A review

The advance in first generation Bi-2223 HTS wire has enabled the demonstration of superconducting power cables, magnetic energy-storage devices, transformers,fault current limiters and motors. However, the low irreversibility field (H^*) prevents application of Bi-2223 at 77 Kin any significant field. Worldwide activities are therefore,focused on developing a second-generation HTS technology based on YBCO, for which H^* (77K)-7 T. In this paper, we discuss the status and commercial prospects of second generation HTS wire technologies. In addition, we review the recent results and discuss the prospects of future applications.

Second generation YBCO coated conductors: A review

The advance in first generation Bi-2223 HTS wire has enabled the demonstration of superconducting power cables, magnetic energy-storage devices, transformers, fault current limiters and motors. However, the low irre- versibility field (H*) prevents application of Bi-2223 at 77 K in any significant field. Worldwide activities are therefore, focused on developing a second-generation HTS technology based on YBCO, for which H* (77 K) ~ 7 T. In this paper, we discuss the status and commercial prospects of second gen- eration HTS wire technologies. In addition, we review the recent results and discuss the prospects of future applica- tions.