Superconducting properties of Nb3(Sn1-xGax) by a solid-state diffusion process
Abstract
Monofilament Nb3(Sn1-xGax) wires were made by heat treating composites consisting of pure Nb, (Nb-1 wt% Zr), or (Nb-0.7 wt% Ga) in various Cu-Sn-Ga alloys matrices. Superconducting critical temperatures Tc and critical current densities Jc(H), up to 18 T were measured for these wires. In several samples both Tc and high-field critical current densities for the Nb3(Sn1-xGax) compounds were found to exceed pure Nb3Sn. The upper critical field, Hc2, also appeared to be substantially higher than for similarly produced Nb3Sn.
- Publication:
-
Applied Physics Letters
- Pub Date:
- June 1976
- DOI:
- 10.1063/1.88635
- Bibcode:
- 1976ApPhL..28..738H
- Keywords:
-
- 74.50.Pg;
- 74.50.Dw