@article{Postelnyk_Sobol_Chocholaty_Zelenskaya_2020, title={Structure, Adhesion Strength and Corrosion Resistance of Vacuum Arc Multi-Period NbN/Cu Coatings}, volume={3}, url={https://journals.bilpubgroup.com/index.php/jmmr/article/view/1364}, DOI={10.30564/jmmr.v3i1.1364}, abstractNote={<p>The influence of deposition modes on the phase-structural state, corrosion resistance, and adhesive strength of vacuum-arc multi-period NbN/Cu coatings is studied. It was found that in thin layers (about 8 nm, in a constant rotation mode), regardless of the change in the pressure of the nitrogen atmosphere, a metastable δ - NbN phase forms (cubic crystal lattice of the NaCl type). At a layer thickness of ~ 40 nm or more, a phase composition changes from the metastable δ - NbN to the equilibrium ε - NbN phase with a hexagonal crystal lattice. In the presence of the ε - NbN phase in the niobium nitride layers, the highest adhesive strength is achieved with a value of L<sub>С5</sub> = 96.5 N. Corrosion resistance tests have shown that for all the studied samples the corrosion process has mainly an anodic reaction. The highest corrosion resistance was shown by coatings obtained at a pressure of 7·10<sup>-4</sup> Torr, with the smallest bias potential of -50 V and the smallest layer thickness; with a thickness of such a coating of about 10 microns, its service life in the environment of the formation of chloride ions is about a year.</p>}, number={1}, journal={Journal of Metallic Material Research}, author={Postelnyk, Hanna Oleksandrivna and Sobol, O.V. and Chocholaty, O. and Zelenskaya, G.I.}, year={2020}, month={Apr.}, pages={1–6} }