Investigations and developments of the new type strongly textured paramagnetic Ni-W substrates with buffer coating TiN for creating the second generation high temperature superconductors

摘要

As the title implies the article describes novel research regarding the textured paramagnetic substrates for creating 2G HTS coated conductors. It is studied the influence of the deposition time and pressure of nitrogen on the cubic texture formation for paramagnetic Ni - 9.5 at. % W ribbon with TiN buffer coating by using XRD methods. It is observed the difference in the mechanism of coating formation during the deposition of TiN on the front and the back side of the substrate. It is shown that the cubic texture strengthening of the metal tape under influence of the TiN coating. It is also established that the optimization of the conditions of thin TiN layer deposition makes it possible to obtain quasi single crystalline TiN coatings with a cubic texture. These textured Ni - 9.5 at. % W/TiN substrates admit the epitaxial growth of high quality HTS films with high current carrying capacity.