Novel Method for Characterization of the Influence of Axial Tensile Stress on the Critical Temperature of High-Temperature Superconductor Windings in Electrical Machines

This paper investigates how static stress affects the critical temperature of a REBCO superconductor. For this purpose, a static force is applied to the conductor material and it is investigated whether the critical temperature changes. For the design of electrical applications such as electrical machines with superconducting windings, it is of great importance to know the critical transition temperature of superconductors. In particular, in the event of a fault, forces can occur and cause a high mechanical stress on the conductor. The influence of these material stresses is investigated in more detail in the following paper.