Погребняк, Олександр ДмитровичПогребняк, Александр ДмитриевичPohrebniak, Oleksandr DmytrovychБондар, Олександр В`ячеславовичБондарь, Александр ВячеславовичBondarenko, Oleksandr ViacheslavovychСоболь, О.В.Sobol, O.V.Береснев, В.М.Beresnev, V.M.2014-02-142014-02-142013Changing of defect’s structure and properties of superhard nanostructured Ti-Si-N coatings, fabricated using CPVD, before and after annealing [Текст] / O.D. Pohrebniak, O.V. Bondar, O.V. Sobol, V.M. Beresnev // Soft Nanoscience Letters. — 2013. — №3. — P. 46-510000-0002-9218-6492http://essuir.sumdu.edu.ua/handle/123456789/33948Using such unique methods of analysis as slow positron beam (SPB), RBS, μ-PIXE (proton microbeam), XRD, SEM with EDS, XPS, nanohardness and elastic modulus measurements, we studied superhard nanostructure Ti-Si-N coatings, which were deposited using Cathodic-PVD method, before and after annealing at the temperature of 600°C for 30 minutes. It is shown in the paper that redistribution of N and Si occurs on the borders of nanograins after annealing, amorphous phase α-SiNx (Si3N4) is created, defects segregates on interfaces and forms vacancy-type clusters with rather high concentration from 5 × 10[16] cm-3 to 7.5 × 10[17] cm-3 due to thermodiffusion. Solid solution (Ti,Si)N and small concentration of α-SiN (close to XRD detection limits) are formed in the coating. Also it was obtained, that deflected mode is formed in the coating (compressive deformation equals to –2.6%), but after thermal annealing deformation reduces to a value of -2.3%. Size of nanograins of solid solution (Ti, Si)N increases from 12.5 nm to (13.2 ÷ 13.4) nm. 25 nm size grains increase their size to 28.5 nm after annealing (under another deposition regime). When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/33948encneNanostructureWearNanohardnessProfiles of DefectsTi-Si-NArticle