Development of TiN/Ni–9.5 at.% W paramagnetic composite substrates for 2G high-temperature superconductors

The possibilities of producing bilayer substrate tapes based on the paramagnetic Ni–W alloy with the TiN coating, which could be used as a seed layer in the architecture of second-generation high-temperature superconductors (2G HTS), have been explored. The studies were conducted in the following areas: synthesis, mechanical and thermal treatment of Ni–W alloys with an fcc crystal structure, and the investigation of the influence of TiN deposition conditions on the ability to control the properties of the TiN/Ni–9.5 at.% W bilayer system. An effect of mutual interaction between the substrate and the coating was observed, resulting in the correlated enhancement of the degree of cube texture {001}<100 > in both components of the bilayer system.