Title :
Formation of superhard multilayer microand nanostructured Ti-Hf-Si-N/NbN/Al2O3 coating with high mechanical and tribological properties
Author :
Maksakova, O.V. ; Shypylenko, A.P. ; Takeda, Y. ; Oyoshi, K. ; Kovaleva, M.G. ; Kolesnikov, D.A. ; Zholybekov, B.R. ; Kupchishin, A.I.
Author_Institution :
Sumy State Univ., Sumy, Ukraine
Abstract :
A new variant of multilayered Ti-Hf-Si-N/NbN/Al2O3 coatings were developed. Coatings were prepared by several deposition techniques such as plasma-detonation and vacuum-arc deposition using evaporation of the cathode. Nanocomposite coatings have a size of nanograins from 14-17 nm to 28-53 micron, high hardness from 21 to 56 GPa. The main advantage of such nano-and microstructure coating is a low coefficient of friction. Additionally the formation in the aluminum oxide and in the steel surface layer of transition zone with the formation of nanoscale phase and high value of hardness was detected.
Keywords :
aluminium compounds; cathodes; coatings; crystal microstructure; evaporation; friction; hafnium compounds; nanocomposites; niobium compounds; titanium compounds; Ti-Hf-Si-N-NbN-Al2O3; aluminum oxide; cathode; deposition techniques; evaporation; friction coefficient; hardness; mechanical properties; microstructure coating; multilayer microstructured coating; multilayer nanostructured coating; nanocomposite coatings; nanograins; plasma-detonation; size 14 nm to 17 nm; steel surface layer; transition zone; tribological properties; vacuum-arc deposition; Steel;
Conference_Titel :
Microwave & Telecommunication Technology (CriMiCo), 2014 24th International Crimean Conference
Conference_Location :
Sevastopol
Print_ISBN :
978-966-335-412-5
DOI :
10.1109/CRMICO.2014.6959604
