Development Progress of CRAFT SC Material Testing Facility

As one of the sub-systems for comprehensive research facility for fusion technology (CRAFT), the SC material testing facility will be used for performance research on superconducting wires/tapes, structural materials, insulations, and other sub-elements of fusion magnet systems. The SC material testing facility consists of 6 platforms including the superconducting material performance research platform, the AC loss research platform, the structure material performance research platform, the thermo-hydraulic research platform, the non-destructive examination technology research platform, and the high voltage research platform. The following key technologies are expected to be solved during the establishment of the platform: the design and manufacturing technologies of a 19 T hybrid superconducting magnet with an aperture larger than 70 mm, the design of the multifunctional critical current characterization sample holders, precise control of the vertical and radial deviation of a loading system simulating cyclic loads for AC loss measurement, the establishment of multi-media and complex structural parts simulation model for NDE. The SC material testing facility is planned to be accomplished and open by the end of 2024.