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Compendium of practical Nb3Sn conductor properties and data

 

Supplemental website data references:

Superconductor Science and Technology, 2016  Topical Review: “Unified scaling law for flux pinning in practical superconductors: Part 2.  Parameter testing, scaling constants, and the extrapolative scaling expression,” by Jack W. Ekin, Najib Cheggour, Loren Goodrich, Jolene Splett, Bernardo Bordini, and David Richter, Supercond. Sci. Technol., vol. 29, no. 12, Art. No. 123002

Superconductor Science and Technology, 2017  Topical Review: “Unified scaling law for flux pinning in practical superconductors: Part 3. Extrapolations from minimum datasets and applications of the extrapolative scaling expression,” by Jack W. Ekin, Najib Cheggour, Loren Goodrich, and Jolene Splett, Supercond. Sci. Technol., vol. 30, no. 3, Art. No. 033005

Table A1.  Properties of the Nb3Sn conductors analyzed in this study.

Conductor Type Jc Application # Sub Elements,

Diffusion barrier

 Cu : Non-Cu ratio Doping Diam. (mm) Reference
A1.1 Oxford Superconducting Technology* Internal tin (RRP®) High HL-LHC & NMR 54,

Nb distributed

 0.855 Ta     7.5 wt% 0.7 Present article
A1.2 Western Superconducting Technology* Internal tin Moderate ITER-TF 19,

Ta single

 1.031 Ti 0.82 Present article
A1.3 Luvata Internal tin Moderate ITER-TF 19,

Ta single

 1.1 Ti

~2 wt%

 0.83 Goodrich (2009)

Cheggour et al. (2014)
A1.4 Vacuumschmelze Bronze Moderate ITER 0.81 Taylor and Hampshire (2005)†
A1.5 Oxford Superconducting Technology Internal tin Moderate ITER-TF Ta single 1.5 Ti

1.5%

 0.81 Goodrich and Stauffer (2005)
A1.6 Furukawa Bronze Moderate ITER Taylor and Hampshire (2005)†
A1.7 EM-LMI Internal tin Moderate ITER Nb distributed Ta 0.81 Taylor and Hampshire (2005)†

† Source Ic(B,T,ε) data were obtained online at  http://www.dur.ac.uk/superconductivity.durham/ from the Durham group (Taylor and Hampshire 2005).

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