Nb-Ti filamant onion blossom superimposed on the Frank Shaw Building, the new home of the Applied Superconductivity Center

NHMFL > ASC > PJL > Master Jc Plots and Nb3Sn Scaling Spreadsheet>Archive

You have reached the archive of older versions of the Jc and Jc plots. The current versions can be found at: http://fs.magnet.fsu.edu/~lee/plot/plot.htm

A comparison of Superconductor Critical Currents
Superconductor Engineering Critical Currents - color version

Engineering Critical Current Density vs. Applied Field -April 16th 2014

1024x693 119 kB PNG
1280x1024 161 kB PNG
248 kB Powerpoint File + References
197 kB Excel Workbook + References
327 kB Adobe Acrobat File+ References

You can add your own data to the plot using the Excel Worksheet:
1. Right Click on the plot.
2. From the menu that pops up choose: “Select Data . . . . “
3. A “Select Data Source” window will pop up that will allow you to add your data.

Suggestions/corrections are always welcome.

References:
YBCO: Tape,∥Tape-plane, SuperPower "Turbo" Double layer (tested NHMFL 2009). Source: Aixia Xu and Jan Jaroszynski, June 2009. 20 T depression due to He bubble, dashed line estimates true performance.
YBCO: Tape, ⊥ Tape-plane, SuperPower "Turbo" Double layer (tested NHMFL 2009). Source: Aixia Xu and Jan Jaroszynski, June 2009
Bi-2223: B ⊥ Tape-plane "DI" BSCCO "Carrier Controlled" Sumitomo Electric Industries (MEM'13 presented by Kazuhiko Hayashi).
Bi-2223 (2012 production): B ⊥ Tape-plane "DI" BSCCO (measured at NHMFL by Jianyi Jiang and Dmytro Abraimov Oct. 2013).
Bi-2212: OST 2212 wire with 100 bar over-pressure HT at NHMFL. 25% SC (D. C. Larbalestier, J. Jiang, U. P. Trociewitz, F. Kametani, C. Scheuerlein, M. Dalban-Canassy, M. Matras, P. Chen, N. C. Craig, P. J. Lee, and E. E. Hellstrom, “Isotropic round-wire multifilament cuprate superconductor for generation of magnetic fields above 30 T,” Nature Materials, Advance online publication, Mar. 2014. doi: 10.1038/nmat3887
Nb-47Ti: 0-6 T - 1.8 K and 4.2 K: Boutboul, T.; Le Naour, S.; Leroy, D.; Oberli, L.; Previtali, V.; , "Critical Current Density in Superconducting Nb-Ti Strands in the 100 mT to 11 T Applied Field Range," Applied Superconductivity, IEEE Transactions on , vol.16, no.2, pp.1184-1187, June 2006.
doi: 10.1109/TASC.2006.870777
Nb-47Ti: 5-8 T 1.8 K Maximal: Nb-Ti: Max @4.2 K for whole LHC NbTi strand production (CERN-T. Boutboul '07)
Nb-47Ti: 4.22 K for 11.75 T Iseult/INUMAC MRI: Kanithi H, Blasiak D, Lajewski J, Berriaud C, Vedrine P and Gilgrass G 2014 Production Results of 11.75 Tesla Iseult/INUMAC MRI Conductor at Luvata IEEE Transactions on Applied Superconductivity 24 1–4 doi:10.1109/TASC.2013.2281417
Nb3Sn (RRP®): Non-Cu Jc Internal Sn OI-ST RRP® 1.3 mm, Parrell, J.A.; Youzhu Zhang; Field, M.B.; Cisek, P.; Seung Hong; , "High field Nb3Sn conductor development at Oxford Superconducting Technology," Applied Superconductivity, IEEE Transactions on , vol.13, no.2, pp. 3470- 3473, June 2003.
doi: 10.1109/TASC.2003.812360 and Nb3Sn Conductor Development for Fusion and Particle Accelerator Applications J. A. Parrell, M. B. Field, Y. Zhang, and S. Hong, AIP Conf. Proc. 711, 369 (2004), DOI:10.1063/1.1774590.
Nb3Sn (High Sn Bronze): T. Miyazaki et al. MT18 - fig3, Miyazaki, T.; Kato, H.; Hase, T.; Hamada, M.; Murakami, Y.; Itoh, K.; Kiyoshi, T.; Wada, H.; , "Development of high Sn content bronze processed Nb3Sn superconducting wire for high field magnets," Applied Superconductivity, IEEE Transactions on , vol.14, no.2, pp. 975- 978, June 2004
doi: 10.1109/TASC.2004.830344
MgB₂: 18 Filament - The OSU/HTRI C 2 mol% AIMI ("Advanced Internal Mg Infiltration") 33.8% Filament to strand ratio, 39.1% MgB₂ in filament.
G. Z. Li, M. D. Sumption, J. B. Zwayer, M. A. Susner, M. A. Rindfleisch, C. J. Thong, M. J. Tomsic, and E. W. Collings, “Effects of carbon concentration and filament number on advanced internal Mg infiltration-processed MgB₂strands,” Superconductor Science and Technology, vol. 26, no. 9, p. 095007, Sep. 2013. doi: 10.1088/0953-2048/26/9/095007

Links to ASC, MT and ICMC Proceedings can be found on the conferences page.

Superconductor Engineering Critical Currents - color version

Engineering Critical Current Density vs. Applied Field -July 8th 2013

946x686 88 kB PNG
1358x974 139 kB PNG
289 kB Powerpoint File + References
234 kB Excel Worksheet + References
You can add your own data to the plot using the Excel Worksheet:
1. Right Click on the plot.
2. From the menu that pops up choose: “Select Data . . . . “
3. A “Select Data Source” window will pop up that will allow you to add your data.

References:
YBCO: Tape,∥Tape-plane, SuperPower "Turbo" Double layer (tested NHMFL 2009). Source: Aixia Xu and Jan Jaroszynski, June 2009. 20 T depression due to He bubble, dashed line estimates true performance.
YBCO: Tape, ⊥ Tape-plane, SuperPower "Turbo" Double layer (tested NHMFL 2009). Source: Aixia Xu and Jan Jaroszynski, June 2009
Bi-2223: B ⊥ Tape-plane "DI" BSCCO "Carrier Controlled" Sumitomo Electric Industries (MEM'13 presented by Kazuhiko Hayashi).
Bi-2212: OST 2212 wire with 100 bar over-pressure HT at NHMFL. 25% SC (D. C. Larbalestier, J. Jiang, U. P. Trociewitz, F. Kametani, C. Scheuerlein, M. Dalban-Canassy, M. Matras, P. Chen, N. C. Craig, P. J. Lee, and E. E. Hellstrom, “Isotropic round-wire multifilament cuprate superconductor for generation of magnetic fields above 30 T,” Nature Materials, Advance online publication, Mar. 2014.
Nb-47Ti: 0-6 T - Boutboul et al. MT-19: Boutboul, T.; Le Naour, S.; Leroy, D.; Oberli, L.; Previtali, V.; , "Critical Current Density in Superconducting Nb-Ti Strands in the 100 mT to 11 T Applied Field Range," Applied Superconductivity, IEEE Transactions on , vol.16, no.2, pp.1184-1187, June 2006.
doi: 10.1109/TASC.2006.870777
Nb-47Ti 5-8 T Maximal: Nb-Ti: Max @4.2 K for whole LHC NbTi strand production (CERN-T. Boutboul '07)
Nb3Sn (RRP®): Non-Cu Jc Internal Sn OI-ST RRP® 1.3 mm, Parrell, J.A.; Youzhu Zhang; Field, M.B.; Cisek, P.; Seung Hong; , "High field Nb3Sn conductor development at Oxford Superconducting Technology," Applied Superconductivity, IEEE Transactions on , vol.13, no.2, pp. 3470- 3473, June 2003.
doi: 10.1109/TASC.2003.812360 and Nb3Sn Conductor Development for Fusion and Particle Accelerator Applications J. A. Parrell, M. B. Field, Y. Zhang, and S. Hong, AIP Conf. Proc. 711, 369 (2004), DOI:10.1063/1.1774590.
Nb3Sn (High Sn Bronze): T. Miyazaki et al. MT18 - fig3, Miyazaki, T.; Kato, H.; Hase, T.; Hamada, M.; Murakami, Y.; Itoh, K.; Kiyoshi, T.; Wada, H.; , "Development of high Sn content bronze processed Nb3Sn superconducting wire for high field magnets," Applied Superconductivity, IEEE Transactions on , vol.14, no.2, pp. 975- 978, June 2004
doi: 10.1109/TASC.2004.830344
MgB2: 19 Fil RW - Hypertech 24% Fill data courtesy MikeTomsic 10/25/07.
MgB2: 1 Fil. 2nd Generation MgB₂. OSU/HTRI - G. Z. Li, M. D. Sumption, M. A. Susner, Y. Yang, K. M. Reddy, M. A. Rindfleisch, M. J. Tomsic, C. J. Thong, and E. W. Collings, “The critical current density of advanced internal-Mg-diffusion-processed MgB₂ wires,” Superconductor Science and Technology, vol. 25, no. 11, p. 115023, Nov. 2012.

Links to ASC, MT and ICMC Proceedings can be found on the conferences page.

   
Superconductor Engineering Critical Currents - color version

Engineering Critical Current Density vs. Applied Field - Oct 2008

Includes more extensive annotations than previous versions as well as cross-sections of the composites.
976x648 169 kB PNG
1300x864 278 kB PNG
394 kB Powerpoint File + References
133 kB Excel Worksheet + References

References:
YBCO: Tape, || Tape-plane, SuperPower (Used in NHMFL tested Insert Coil 2007). Source: Zhijun Chen (NHMFL). 50% Adjustment for 2 to 1 µm production layer
YBCO: Tape, |_ Tape Plane, testing as for Tape II
Nb-47Ti: 0-6 T - Boutboul et al. MT-19, T. Boutboul et al., Critical Current Density in Superconducting Nb-Ti Strands in the 100 mT to 11 T Applied Field Range," IEEE Transactions on Applied Superconductivity, vol. 16(2)pp. 1184-1187, 2006
Nb-47Ti 5-8 T Maximal: Nb-Ti: Max @4.2 K for whole LHC NbTi strand production (CERN-T. Boutboul '07)
Bi-2212: OST 2212 wire 0.8 mm, 28% ceramic, 0 to 10 T data taken at OST, 11.5 to 45 T data taken in NHMFL hybrid
Nb3Sn (RRP): Non-Cu Jc Internal Sn OI-ST RRP 1.3 mm, J. A. Parrell et al., "High field Nb3Sn conductor development at Oxford Superconducting Technology," IEEE Transactions on Applied Superconductivity, vol. 13(2:3),pp.3470-3473, 2003 and J. A. Parrell et al., "Nb3Sn Conductor Development for Fusion and Particle Accelerator Applications," Adv. Cryo. Eng. (AIP), vol. 50, pp. 369-375, 2004
Nb3Sn (High Sn Bronze): T. Miyazaki et al. MT18 - fig3, "Development of High Sn Content Bronze Processed Nb3Sn SuperconductingWire for High Field Magnets," IEEE Transactions On Applied Superconductivity, Vol. 14, No. 2, June 2004
MgB2: 19 Fil RW - Hypertech 24% Fill data courtesy MikeTomsic 10/25/07

Links to ASC, MT and ICMC Proceedings can be found on the conferences page.

Color version of <em>J</em><sub>c</sub> plot

Critical Current Density vs. Applied Field: Light Color Version - July 2013
1400x958 141 kB PNG
1024x701 102 kB PNG
221 kB Powerpoint File + References
229 kB Excel File + References

References: See Je plot.

   
Color version of Jc plot
Critical Current Density vs. Applied Field: Light Color Version - June 2008
1078x636 142 kB PNG
336 kB Powerpoint File + References
202 kB Excel File + References


A Best-of-Breed Comparison of Superconductor Critical Currents for 100 m length capable material

Jc Progress Light Version - December 12, 2002
66 KB PDF US Letter
66 KB PDF A4 Size
121 KB Powerpoint
75 KB GIF 1200 X 900 x 16 col


Update History
- Opens in a new window


Critical current density values are all normalized to the superconductor cross-section and are in A/mm² (the units most commonly used for magnet applications). The criterion used for determining critical current measurement is not consistent, especially in the case of HTS superconductors.

Edited version of comparison between Bulk Pinning Force and Field of a Superconductor

Fp vs B 200 KB PDF Updated February 24th 2003


Advances in Critical Current Density in Nb-Ti Superconductors at 4.2

Fp vs B 59 KB PDF

compiled the data and generated the graphs

Nb3Sn Scaling Spreadsheet - Matthijs Mentink, Diego Arbelaez, Arno Godeke [LBNL]


Version 5 Release Notes (January 2010):
Microsoft Excel spreadsheet that runs a Visual Basic code to allow the user to easily calculate Ic(B,T,strain), Tc(B,strain), and Bc2(T,strain) for Nb3Sn superconductors using a fixed set of material parameters, thereby allowing rapid and convenient parameterizations of measurement results. The calculations are based on scaling relations for Nb3Sn as were published in 2006 and accepted for ITER in 2008. The new spreadsheet includes improvements that were made since then.

The spreadsheet runs on all Microsoft Office versions that include Visual Basic scripting, which is most versions except Office 2008 for MacIntosh OS (Microsoft has unfortunately removed Visual Basic from that package). The user has to tweak the security settings in Excel to enable Visual Basic macro programs to run for the calculations to work. We found "Ask whether macro's to run when opening" a good compromise between the standard high security setting (do not run any macro's) and the lowest security setting that enables all macro's to run in Excel.

The version below is the new public version V5.0. The last public version posted here was V4.2. Changes with respect to V4.2 are:
1. The use of mathematically simplified relations and improved programming
2. The inclusion of a new strain formalism that includes upward curvature in Bc2(strain) for high compressive strains, asymmetry, which is derived from a 3D, three invariant strain description. This improvement stems from requests by Luca Bottura and Bernardo Bordini, who analyzed the available scaling relations for ITER
3. Removal of the axial thermal pre-strain from the material property list. All strain values that are used in the spreadsheet are now intrinsic strain values, i.e. adjusted for the thermal pre-strain
4. The material property list now includes the pinning constants p and q, allowing the user to vary them and/or use them as fit parameters, thereby addressing users desires (e.g. for ITER)
5. The new name (MAG spreadsheet) is derived from the main contributor's last names (Mentink, Arbelaez, Godeke)

Note 1: The Visual Basic code, as in V4.2, uses the full Maki-DeGennes descriptions to calculate Bc2(T) as opposed to it's approximation Bc2(T) ~ Bc2(0)(1-t1.52). We were tempted to simplify the code, but consider simplicity of the mathematics not a good reason to replace an exact, microscopic based description by a less accurate approximation. As pointed out by various users, the approximation only leads to errors of about 0.5 T in Bc2(T), but such errors in Bc2 would lead to undesired significant errors in Ic. Users who would like a version that uses the approximation can edit the source code, which is self-explanatory, or send the authors a request to make a private version.
Note 2: The magnetic fields in the spreadsheet are considered to be total magnetic fields, i.e. self-field corrected values. The user has to apply the appropriate self-field corrections for his/her specific measurement.
Note 3: Feel free to distribute this spreadsheet.
Note 4: Feel free to modify the codes as desired. The authors would like to ask the user to re-name the file appropriately if a modified version is distributed.
Note 5: Tested extensively, but please report bugs using email link below.

Cheers,
Matthijs Mentink, Diego Arbelaez, Arno Godeke [LBNL]

Scaling Spreadsheet - October 25, 2005
89 KB Scaling Spreadsheet: Excel Format
26 KB 7z compressed file containing Excel spreadsheet
 

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Created March 4th 2010 ©Peter J. Lee

Last remembered to update date: March 10th 2014

 

 

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