Recent Progress of Bi2223 HTS Wires and Their Applications

Abstract

The present status of the development of Bi2223 HTS wires and their applications is summarized. Bi2223 wire performance has been greatly improved by adopting the so-called “Controlled Over Pressure” technique. Not only the critical current, but also long wire availability is improved due to the 100 % density of the HTS portion. Further to progress in the area of applications, prototypes such as high-field magnets, ship propulsion motors and power cables are introduced. Also, future directions towards material and application development are proposed.