Physical and Mechanical Tests of Experimental Samples of HTSC Current-Carrying Elements for Superconducting Magnetic Systems of Promising Tokamaks

The unique properties of high-temperature superconductors (HTSCs) and progress in the manufacture of HTSC-based wires made it possible to develop a new generation of tokamaks. In Russia, a tokamak project with reactor technologies (TRT), in which the magnetic field induction reaches 8 T on the plasma axis and 15 T and higher on the windings of the electromagnetic system, is being developed. The creation of HTSC current-carrying elements (CCEs) that meet the stringent requirements for the TRT magnetic system is one of the key issues of the entire project. A number of short experimental CCE samples that are potentially applicable in TRT magnetic systems was developed. A series of physical and mechanical tests were carried out to check the mechanical properties and develop a universal certification methodology for CCEs accepted for operation.