The Characteristics of Bi-2223/Ag Conductor for High Field Application

• Published in: IEEE transactions on applied superconductivity Vol. 18; no. 2; pp. 1159 - 1162
• Main Authors: Choi, S., Kiyoshi, T., Matsumoto, S., Itoh, K., Hase, T., Zaitsu, K., Hamada, M., Sugano, M.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.06.2008; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Anisotropic magnetoresistance; Applied sciences; Bi-2223/Ag conductor; Conducting materials; Conductors; Conductors (devices); Critical current; CURRENT; DETERIORATION; ELECTRICAL CONDUCTORS; Electrical engineering. Electrical power engineering; Electromagnets; Electronics; Exact sciences and technology; high magnetic field; High temperature superconductors; index value; MAGNETIC FIELD; Magnetic field measurement; Magnetic fields; Magnetic materials; Materials; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Silver; Superconducting devices; Superconducting materials; Superconducting tapes; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TAPE; Temperature dependence; Various equipment and components; High strength current; Temperature dependence; index value; Magnet; Critical field; Experimental study; high magnetic field; Hybrid system; Bi-2223/Ag conductor; Degradation; Critical current; Anisotropy; High current; Superconducting tapes; High field; Composite superconductor; Magnetic field; High temperature superconductor; Damaging
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2008.922354

For the development of high magnetic field application using high temperature superconductor (HTS), Bi-2223/Ag tape is one of the promising materials because of its high current capacity and upper critical field. However, Bi-2223/Ag tape shows very strong anisotropy and significant deterioration of critical current in the magnetic field. To explore the possibility of HTS in high field applications, we evaluated the critical current and index value of Bi-2223/Ag conductor in high magnetic field. The Bi-2223/Ag tape was characterized as a function of increasing and decreasing field. The temperature dependence was also examined lower than 4.2 K. All measurements were carried out with hybrid magnet system up to 30 T and the experimental results are reported.