Fabrication and performance of in-situ processed Nb/sub 3/Sn tape and multistrand wire

Conference · Fri Mar 01 04:00:00 EST 1985 · IEEE Trans. Magn.; (United States)

OSTI ID:6486048

Ohkubo, H; Hirabayashi, H; Ichihara, M; Kodera, M; Kumano, T; Noguchi, T; Okon, H; Suziki, E; Yasohama, K; Yasukochi, K

A tape conductor and a multistrand wire, each of which has two different types, have been fabricated in long lengths. Nb/sub 3/Sn filaments of one type of the tape conductor are twisted. A pancake magnet (46 mm inner and 80 mm outer winding diameter) has been made of those tape conductors and tested in backup field of 7.5 Tesla. The tests have revealed that the twist improves stability of the tape conductor. Total magnetic field of 9.8 T was achieved using the tape with twisted Nb/sub 3/Sn filaments for windings of end pancake modules. Both types of the tape were made by external tin diffusion method and have critical current capacities of 240 Amp at 10 Tesla. The multistrand wires were manufactured by tin cored internal diffusion method. One type containes single tin core, the other type seven tin cores. The single and seven tin-cored wires have been successfully drawn to diameters of 0.62 and 1.26 mm respectively. Critical current densites of those wires were found to be (1.4 about 2.0) x 10/sup 4/ Amp/cm/sup 2/ at 11 Tesla.

• Research Organization: Vacuum Metallurgical Co., Ltd., Sanbu, Yokota, Chiba
• OSTI ID: 6486048
• Report Number(s): CONF-840937-
• Conference Information: Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: MAG-21:2
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
CURRENT DENSITY
FABRICATION
IN-SITU PROCESSING
NIOBIUM ALLOYS
PERFORMANCE
PROCESSING
STABILITY
SUPERCONDUCTING WIRES
SUPERCONDUCTORS
TIN ALLOYS
WIRES