Use of a Mixture of Gases (C2H2 + N2) to Obtain High-strength Molybdenum-based Carbonyl Nitride Coatings

Regularities of structure formation and physical properties of multilayered composites based on W, Ta, Нf, Ti, Mo, Сr, Al, and С

“…Monolayers of simple carbides and nitrides of transition metals cannot always provide the whole set of the mentioned properties. That is why there is a modern trend in development of ion-plasma technologies which is based on formation of multilayered and multicomponent coatings at the same time [1][2][3][4][5]. Their efficiency is explained by capability of different interlayers of a composite to support high adhesion combined with high antifriction characteristics while maintaining proper level of microhardness, strength and resistance to various external impacts of the coatings.…”

“…Now fabrication of such sophisticated coatings is somehow limited by absence of appropriate specialized technologies. In some cases, to obtain multilayered TiN/TiAlN, (TiZrNbHf)N/MoN and (TiN-Cu)/(AlNbTiMoVCr)N nitride composites, two plasma arc sputterers of alloyed multicomponent targets are used in presence of nitrogen [2][3][4][5]. It should be noted that this technology allows producing coatings only of two types of interlayers.…”

“…It should be noted that this technology allows producing coatings only of two types of interlayers. At the same time, it is established that functional capabilities of the composites produced under the above conditions are more advantageous than those of coatings produced on the basis of nitrides of single metals constituting the composite or on the basis of single-layer coatings composed of elements of any single interlayer of the composite [2][3][4][5].…”