Laboratory scale solenoids with multifilamentary Nb/sub 3/Sn superconductors

Conference · Tue Sep 01 04:00:00 EDT 1981 · IEEE Trans. Magn.; (United States)

OSTI ID:6336407

Weisse, H J; Wilhelm, M; Wohlleben, K; Springer, E

By the bronze technique Nb/sub 3/Sn multifilamentary conductors with different numbers and densities of filaments and partly with an integrated CuTa stabilization were fabricated. For currents exceeding 1000 amp at 10 T fully transposed and calibrated flat cables were fabricated with different numbers of strands and different ratios of superconducting to CuTa stabilizing strands. From long lengths (km) of these cables, solenoids with manifold graded windings were manufactured using the wind-and-react-technique and a final vacuum impregnation after reaction. Two different variants of this technique are described. Magnetic flux densities up to 15 T at 4.2 K in a free bore of 40 mm diam have been reached in a 7 T NbTi background field. The solenoids attained the short sample current within some percent requiring only short training on initial excitation but no training after heating to room temperature. High excitation speeds were obtained without degradation of the quench current. 5 refs.

• Research Organization: Siemens, Erlangen, Ger
• OSTI ID: 6336407
• Report Number(s): CONF-810340-
• Conference Information: Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: MAG-17:5
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
CABLES
CONDUCTOR DEVICES
ELECTRIC CABLES
ELECTRIC COILS
ELECTRICAL EQUIPMENT
EQUIPMENT
FABRICATION
FLUX DENSITY
MAGNETIC FLUX
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
SOLENOIDS
SUPERCONDUCTING CABLES
SUPERCONDUCTORS
TIN ALLOYS