Vanadium-gallium

From Wikipedia, the free encyclopedia
Jump to: navigation, search

Vanadium-gallium (V3Ga) a superconducting alloy of vanadium and gallium often used for the high field insert coils of superconducting electromagnets.

Vanadium-gallium tape is used in superconducting magnets (17.5 teslas or 175,000 gauss). The structure of the superconducting A15 phase of V3Ga is similar to that of the more common Nb3Sn and Nb3Ti.[1]

The high field characteristics can be improved by doping with high-Z elements such as Nb, Ta, Sn, Pt and Pb[2]

Superconducting properties[edit]

Fabrication of superconductive wires or tapes[edit]

V3Ga wires can be formed using solid-state precipitation[4]

References[edit]

  1. ^ Markiewicz, W.; Mains, E.; Vankeuren, R.; Wilcox, R.; Rosner, C.; Inoue, H.; Hayashi, C.; Tachikawa, K. (1977). "A 17.5 Tesla superconducting concentric Nb3Sn and V3Ga magnet system". IEEE Transactions on Magnetics 13 (1): 35–37. doi:10.1109/TMAG.1977.1059431. 
  2. ^ Tedrow, P. M.; Meservy, R. (1984), "Improvement in magnetic field properties of vanadium-gallium superconductors by enhancement of spin-orbit scattering" 
  3. ^ Decker, D. L. Laquer, H. L. (1969), Magnetization Studies on Superconducting Vanadium‐Gallium, doi:10.1063/1.1658081 
  4. ^ Hong, Minghwei (1980), A15 SUPERCONDUCTORS THROUGH DIRECT ""SOLID-STATE"" PRECIPITATION: V3Ga AND N63AI