𝔖 Bobbio Scriptorium
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Superconducting properties of multifilamentary V3Ga wires containing additions of indium

✍ Scribed by A Gladun; G Fuchs; K Fischer; C Frenzel; W Holzhaeuser

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
442 KB
Volume
28
Category
Article
ISSN
0011-2275

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✦ Synopsis

The effect of In addition on the superconducting properties of V3Ga multifilamentary superconductors has been investigated. The critical temperature and the critical field Hc2 are nearly independent of In content. The observed gain in critical current of up to 100% is due to a rise in both critical current density of the V3Ga layer and the thickness of the V3Ga layer itself. This is caused by grain refinement and significant enhancement of the layer growth rate. The In is added by deposition of an In layer onto the surface of a CuGa-V composite with subsequent annealing. For In layers in excess of 4/~m a second CulnGa phase is formed preventing a further rise in critical current and causing embrittlement of the wire. For the temperature dependence of the critical current density a modified scaling law is proposed.

πŸ“œ SIMILAR VOLUMES

Critical current properties of V3Ga with
Critical current properties of V3Ga with third element additions
✍ T.L. Francavilla; D.G. Howe πŸ“‚ Article πŸ“… 1979 πŸ› Elsevier Science 🌐 English βš– 306 KB

Critical current densities of over I. 7 x 106 Acm -2 at 10 T and 4.2 K have been achieved in multifilamen tary V 3 Ga wire produced by a modified bronze technique. A ttemp ts to further improve this value were made by adding a third element, either Ti or Zr, to the V-Ga alloy filaments along with AI