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Critical current of multifilamentary Nb3Sn conductors up to 18 t

โœ Scribed by G. Rupp; E. Springer; S. Roth

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
369 KB
Volume
17
Category
Article
ISSN
0011-2275

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โœฆ Synopsis

The critical current I c of Nb aSn conductors containing 1615 or 3721 filaments was measured in magnetic flux densities up to 18 7". The magnetic field was generated by a Bitter magnet. The overall current density of the conductor was 5 x 104 A cm-2 at 10 Tand 5 x 103 A cm -2 at 18 7". Values of up to 21.6 T were obtained for the upper critical flux density Bc2. The influence of the diffusion conditions upon I c, Bc2 and the superconducting transition temperature T c have been related to the fraction of the total conductor cross-section taken up by Nb3Sn. This fraction serves as a rough measure of the pressure exerted upon the Nb3Sn within the conductor.

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