Danko van der Laan

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Outline

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IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Conductor on Round Core cables

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IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Science behind CORC cables: strain management

76 K

εirr

εm

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Relation between Tc(ε) and Jc(ε) in YBCO

δ

ε ε

ε ε

Tc, Jc Tc, Jc ε

I

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Anisotropic in-plane reversible strain effect in CC

a

b

α = 0° α = 45° α = 90°

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Strain effect on Ic of CORC cables

εopp.

σ

σ

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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CORC cable development for accelerator magnets

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IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Testing of CORC cables at high fields

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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CORC cable test facilities in the U.S.

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Early CORC accelerator cable development

μ

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IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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CORC cable machine

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IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Improvement in CORC cable quality

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IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Early CORC cable terminations

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IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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New CORC cable terminations

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IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Current densities in early CORC cables

μ

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Thinner tape substrates are coming!

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Effect of substrate thickness on minimum former size

•  μ• • 

• 

α ε μ ε μμ

•  μ•  μ•  μ

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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CORC cable wound from tapes with 38 μm substrate

α

•  μ• • • • • • • • 

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Contact resistance at 4.2 K and 17 T

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Performance at 4.2 K and 17 T

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Projected Je 4.2 K and 20 T

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Current status

Phase II SBIR DOE-High Energy Physics Award DE-SC0009545

μ

μ

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Tapes with enhanced pinning are becoming available

0 20 40 60 80 100 120 1400

50

100

150

200

250

300

350 SP 7.5% Zr; 4 mm; 38 um sub. SP 15% Zr; 4 mm; 50 um sub. SP 15% Zr; 3 mm; 50 um sub. SP 15% Zr; 2 mm; 50 um sub.

I c(4.

2K, 2

0T, B

IIc)

Ic(77K, SF)

6 8 10 12 14 16 18 20 22200

250

300

350

400

450

500

550

600

650 SN1 SN2 SN3

I c(4.

2K, B

IIc)

B, T

248.8 A

• •  μ• • 

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Tapes with thicker films are becoming available

μ

μ

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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CORC cable performance projections

μ μ

μ

μ

μμ

μ μ

μ μ

IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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Summary

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•  μ• • 

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• μ••

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IEEE/CSC & ESAS SUPERCONDUCTIVITY NEWS FORUM (global edition), July 2015. Invited presentation M1OrA-01 given at CEC-ICMC 2015, Tucson, USA, June 28 – July 2, 2015.

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