Author:
Pande C.S.,Smith S.,Francavilla T.L.,Gubser D.U.
Abstract
High field (>10 Tesla) superconducting wires of the A15 compound V3Ga have recently been produced by a new solid state diffusion technique known as the modified jelly roll (MJR) technique which is suitable for rapid production of V3Ga composite superconducting wires. In this process vanadium is rolled into a sheet, slit in a regular pattern, expanded and then wrapped with the Cu-Ga sheet to form a billet. This billet is subsequently extruded to 1.9 cm diameter at 500°C and then drawn into wires (final diameter 0.9 mm). The wires can then be reacted typically around 600°C for about 100 hours to produce superconducting V3Ga filaments. Each wire contains about 5300 such filaments (see Figure 1). Analytical and conventional TEM has been used to characterize grain size, texture, stoichiometry and degree of order for this material.
Publisher
Cambridge University Press (CUP)
Reference4 articles.
1. Pande, C.S. , Smith, S. and Vardiman, R. , J. of Mat. Science Letters (in press) (1984).
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3. Gubser, D.U. , Francavilla, T.L. , Pande, C.S. , Smith, S. , and McDonald, W.K. (unpublished).
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