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Journal of Nanomaterials
Volume 2013 (2013), Article ID 780125, 12 pages
http://dx.doi.org/10.1155/2013/780125
Research Article

Structure and Properties of Nanostructured (Ti-Hf-Zr-V-Nb)N Coatings

Department of Nanoelectronic, Sumy State University, 2, Rymsky Korsakov Street, Sumy 40007, Ukraine

Received 22 February 2013; Revised 29 April 2013; Accepted 14 May 2013

Academic Editor: Jiamin Wu

Copyright © 2013 Alexander D. Pogrebnjak. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Nanostructured coatings of (Ti-Zr-Hf-V-Nb)N were obtained by the Cathodic Arc Vapor Deposition (CAVD) method. To investigate these coatings, a number of complementary methods of elemental and structural analysis were used, namely, slow positron beam (SPB), proton microbeam ( -PIXE), micro- and nanoelectron beam (EDS and SEM analyses), and X-ray diffraction method (XRD), including method of “ - ” measurement of a stress-strain state (X-ray strain measurement). Additionally, the texture of coatings before and after annealing up to 873 K (for time of annealing  min) was also investigated. It was shown that increasing of stress-strain state in the coating during deposition increases the resistance to oxidation at high temperatures of annealing. It was also found that the redistribution of elements and defects, as well as their alignment (segregation), appeared due to thermally stimulated diffusion. It is also connected with the process of spinodal segregation near grain boundaries and interfaces around the grains and subgrains.