Development of Bi-2223/Ag tapes and coils

• Published in: IEEE transactions on applied superconductivity Vol. 7; no. 2; pp. 1825 - 1828
• Main Authors: Bigoni, L., Martini, L., Varesi, E., Zampiceni, E., Zannella, S., Baldini, A., Conti, S., Garre, R., Cartegni, G., De Tommaso, D., Rossi, L.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.06.1997; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Assembly; Cables; Ceramics; Critical current density; Degradation; Electric connection. Cables. Wiring; Electrical engineering. Electrical power engineering; Exact sciences and technology; Powders; Production; Superconducting materials; Testing; Transformers and inductors; Various equipment and components; Wounds
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/77.620938

Long high critical current density Bi-2223/Ag tapes are required for the realization of cables and windings to be integrated in electric power devices. A cooperation agreement among CISE SpA, Europa Metalli and INFN, concerns the development of silver-sheathed multifilamentary Bi-2223/Ag tapes, over 100 meters long, produced by means of the Powder-In-Tube (PIT) technique. The Bi-2223/Ag tapes were thermomechanically processed and then wound into double pancakes by the React and Wind method. This article presents and discusses the electrical and magnetic characterization of the tapes, their degradation after winding as well as the performances of the pancakes tested after the final assembling.