High-temperature Superconducting Materials III

―Bismuth-based Oxide High-temperature Superconducting Wires―

Abstract

Since the discovery of bismuth-based high-temperature superconductors in 1988 in Japan, much work has been done to develop superconducting wires and their applications. Applications include cables, motors, transformers and fault current limiters used at 77.3 K, high field magnets and motors used at 20 K and super-high field magnets and current leads used at 4.2 K. Some applications are already commercial products. This paper introduces the wire fabrication methods, wire characteristics and application apparatus.