CORC^® wires allowing bending to 20 mm radius with 97.5% retention in critical current and having an engineering current density of 530 A mm⁻² at 20 T

Summary

This paper describes the development of optimised Conductor on Round Core (CORC®) wires manufactured from high-temperature superconductor (REBCO) coated conductors, which demonstrate significantly improved bending flexibility compared to previous generations. The next-generation wires achieve a bending radius of 20 mm with only 2–3% performance degradation and attain a record engineering current density of 530 A mm⁻² when extrapolated to 20 T, meeting for the first time the combined requirements for low-inductance, high-field particle accelerator magnet applications.

UK applicability

This research is not directly applicable to UK farming systems, soil health, nutrient density, or human health—it concerns superconductor materials science for fundamental physics infrastructure rather than food systems.

Key measures

Bending radius (mm), critical current retention (%), engineering current density (A mm⁻²) at 12 T and extrapolated to 20 T, operating current (kA)

Outcomes reported

The study reports the development and performance characterisation of next-generation CORC® wires based on REBCO coated conductors, measuring their bending flexibility, critical current retention, and engineering current density at high magnetic fields.

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