Fusion Energy for Industry Partners

REBCO coated conductors

Data from torque magnetometry and members of the ASC research team.

• Characterization using torque magnetometer for REBCO coated conductors from 4.2K-60K and fields up to 16T.
• ± 60° around the tape plane
• 4 mm wide sample

Papers for Reference

• Xu, A.; Xin, Y.; Abraimov, D.V.; Park, J.; Jaroszynski, J.J.; Kametani, F.; Larbalestier, D.C., A Comprehensive Characterization of Commercial Pulsed Laser Deposited Coated Conductors,IEEE Transactions on Applied Superconductivity, 35 (5), 1-6 (2025) https://doi.org/10.1109/TASC.2025.3538638
• Jaroszynski, J.; Constantinescu, A.; Miller, G.E.; Xu, A.; Francis, A.; Murphy, T.P.; Larbalestier, D.C., Rapid assessment of REBCO CC angular critical current density Jc(B, T = 4.2 K, theta) using torque magnetometry up to at least 30T, Superconductor Science and Technology, 35 (9), 095009 (2022) https://doi.org/10.1088/1361-6668/ac8318
• Magnetometer for large magnetic moments with strong magnetic anisotropy - Patent US-12181540-B2 - PubChem.” https://pubchem.ncbi.nlm.nih.gov/patent/US-12181540-B2

Past User

Princeton Plasma Physics Laboratory (PPPL)

HTS Materials for Magnets

SEM Image of ReBCO cross-section; Top Surface HV Indents of Hastelloy/Buffer; cracking YBCO top surface after LBC test.

• Routine measurements for constituent layer thicknesses.
• HV testing to measure mechanical properties of tape and wire materials.
• Post-mortem analysis of cracks and failure mechanisms after Little Big Coil test.

Primary Equipment/techniques

• ThermoFisher FEI Helios G4 FESEM w/ FIJI Image Analysis Software
• 16 T PPMS
• High field user magnets at National MagLab

LTS Materials for Magnets

• Phase evolution studies of wires during reaction paired with critical property measurements: RRR, T_c, I_c, J_c, H_irr,H_c2, H_k.
• High resolution digital microscopy on FESEM as well as TEM and light microscopy to correlate physical material properties and any damage to critical values RRR, T_c, I_c, J_c, H_irr,H_c2, H_k.

Primary Equipment/techniques

• Zeiss FESEM w/ FIJI Image Analysis Software
• Reaction Furnaces up to 1,000 C
• 16 T PPMS
• High field user magnets at National MagLab

Papers for Reference

• C. Sanabria, M. Field, P. J. Lee, H. Miao, J. Parrell, and D. C. Larbalestier, “Controlling Cu–Sn mixing so as to enable higher critical current densities in RRP® Nb3Sn wires,” Supercond. Sci. Technol., vol. 31, no. 6, p. 064001, Apr. 2018, doi: 10.1088/1361-6668/aab8dd.
• C. Segal et al., “Evaluation of critical current density and residual resistance ratio limits in powder in tube Nb3Sn conductors,” SUST 2016 doi: 10.1088/0953-2048/29/8/085003.
• C. Segal, et.al, “Improvement of small to large grain A15 ratio in Nb₃Sn PIT wires by inverted multistage heat treatments,”IOP 2017, doi: 10.1088/1757-899X/279/1/012019.
• C. Tarantini, et. al, “Examination of the trade-off between intrinsic and extrinsic properties in the optimization…” SUST , doi: 10.1088/0953-2048/27/6/065013.

State-of-the-art Microscopy and Analysis Tools

Wide range of analytical capabilities to advance superconducting materials:

Zeiss 1540 EsB

• Dual-beam focused ion and e-beam (FIB)/ field emission scanning electron microscope (FESEM)
• High-precision milling, electron backscatter diffraction (EBSD)
• 3D tomography

Zeiss EVO 10

• SEM and energy dispersive spectroscopy (EDS)

JEOL JEM-ARM200cF

• Transmission electron microscope (TEM/STEM)
• Atomic-resolution imaging and spectroscopy
• 4D Scanning Transmission Electron Microscopy (May 2026)

FEI Helios

• Cross-beam SEM with focused ion beam (FIB)
• Orientation imaging and chemical mapping

Laser micromachining

• Patterning of microstructures

Rigaku SmartLab SE

Easily measure crystallographic tilt angle

• X-ray diffractometer for thin film analysis

Daniel Davis and his team evaluates superconducting cables and magnets in relevant magnetic field.

• Evaluate superconducting cables and magnets in relevant magnetic field
• Cyclic fatigue testing with high current pushes cables and magnets to their limiting JBr hoop stresses.
• Determine the limits and real behavior of test coils instead of testing entire magnet systems to failure.
  • 12 Tesla
  • 161 mm bore
  • 10 kA capabilities (power supply, quench protection, vapor-cooled-leads)

Primary Equipment/Techniques

• MONARC high current magnet system
• FPGA + IGBTs for quench protection
• High-speed DAQ (NI-PXI) + Isolation Amplifier

Papers for Reference

[1] D. C. van der Laan et al., “A CORC® cable insert solenoid: the first high-temperature superconducting insert magnet tested at currents exceeding 4 kA in 14 T background magnetic field,” Supercond. Sci. Technol., vol. 33, no. 5, p. 05LT03, Apr. 2020, doi: 10.1088/1361-6668/ab7fbe.

[2] Y. Zhai et al., “A Low Loss, Fast Ramp HTS Solenoid Prototype for Compact Spherical Tokamaks,” IEEE Transactions on Applied Superconductivity, pp. 1–5, 2026, doi: 10.1109/TASC.2025.3650532.

Current & Past Users

Advanced Conductor Technologies, LLC

• Continuous Reel to Reel characterization at colder temperature and higher fields (2027).
• Routine short sample Ic measurements at 77 K, 20 K, and 4.2 K up to 20T (2027).
• Large Bore Resistive Magnet (2027).
• Ability to irradiate materials and study under SEM and mechanical testing (ongoing discussions).
• JEOL JEM-ARM200cF - 4D Scanning Transmission Electron Microscopy (May 2026)

• Standard frameworks for different levels of testing needs.
• Streamlined template agreements can be executed same day.
  • Dedicated contract administrators for Fusion can also customize to your needs.
• Measurement results reported within 60 days of receipt of samples.
• Infrastructural advantages
  • On site helium reliquification plant can reduce your experiments helium costs by over 50%
  • World experts in experimental techniques, noise reduction, and data analysis to collect the best data as quickly as possible.