Fabrication and Properties of Bi2212 Rutherford Superconducting Cable

• Published in: IEEE transactions on applied superconductivity Vol. 19; no. 3; pp. 3076 - 3079
• Main Authors: KIM, Sang-Cheol, HA, Dong-Woo, OH, Sang-Soo, SONG, Kyu-Jeong, KIM, Seong-Jin, HAN, Il-Yong, SOHN, Ho-Sang
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01-06-2009; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Bi2212/Ag wire; BISMUTH OXIDE; Cables; Conductors; Conductors (devices); COPPER OXIDE; Critical current; CURRENT DENSITY; Current measurement; Electric connection. Cables. Wiring; Electrical engineering. Electrical power engineering; Electromagnets; Electronics; Exact sciences and technology; FABRICATION; MAGNETIC FIELD; Magnetic field measurement; Magnetic fields; Magnetization; Materials; multi-filamentary wire; powder-in-tube; Rutherford superconducting cable; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Shape; Silver; Strands; Superconducting cables; Superconducting devices; Superconducting magnets; SUPERCONDUCTIVITY; SUPERCONDUCTORS; Various equipment and components; WIRE; WIRE AND CABLE; Powder in tube technique; Critical current density; Magnetization; Instruments; powder-in-tube; Bi2212/Ag wire; Irreversible process; Superconducting wires; Rutherford superconducting cable; Critical current; multi-filamentary wire; Superconducting cable; Strand; Magnetic field
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2009.2018852

Bi2212/Ag round wire can be used as large current capacity conductor fabricated in the shape of Rutherford cable. We have fabricated 110 m long Bi2212 Rutherford cable of 20 strand and 10 m long Bi2212 Rutherford cable of 30 strand and 8 strand by using our own Rutherford cabling machine. The critical current ( I c ) of the reacted Rutherford cables have been measured at 4.2 K and 65 K, respectively. The magnetization ( M ) versus. magnetic field ( H ) and magnetic irreversibility (Delta M ) versus. magnetic field ( H ) have been measured at 5-40 K in background magnetic field up to 8 T using PPMS instrument. It is estimated from Delta M that critical current density ( J c ) of 20 strand Rutherford cable is higher than that of 30 strand Rutherford cable.