Properties of niobium nitride coatings deposited by cathodic arc physical vapor deposition

The effect of nitrogen pressure on cathodic arc deposited NbN thin films

“…Specifically when arc deposition system is focused, it is clear that the deposition systems' configuration affects the structure by changing film growth mechanism. In this aspect, Zhitomirsky et al [8,9], Bendavid et al [15] and Cansever [30] studied NbN thin films deposited with different parameters in arc PVD systems and their results are discussed comparing the coating deposited at lower P N2 . Zhitomirsky [9] investigated the structure and properties of NbN coatings deposited by vacuum arc deposition (VAD) systems equipped with and without magnetic plasma guiding.…”

Thick CrN/NbN Multilayer Coating Deposited by Cathodic Arc Technique

“…While typical applications may not require the PVD coating thickness to be above 6 µm 5 , it frequently needs to be on the order of 30 µm when the PVD layer is deposited onto a combustion engine component [5][6][7] . Such high thickness is mandatory when considering the highly demanding environment of internal combustion engines, which is associated to high wear rates 8 . Furthermore, the increasing combustion pressures and the reduced lubrication oil availability found in new generation engines require additional toughness and wear resistance to avoid damage of the parts.…”

“…In recent years, multilayer CrN/NbN coatings have attracted Engineer's attention, since the niobium nitride component (NbN) stands out for its chemical stability 8 and the chromium nitride (CrN) is a hard and inert coating component 2,3 , offering the temperature resistance required for working in the combustion chamber environment. NbN/ CrN nanostructured multilayer coating combines high hardness with chemical stability and toughness.…”

Effect of periodicity on hardness and scratch resistance of CrN/NbN nanoscale multilayer coating deposited by cathodic arc technique

“…Nitrides of transition metals such as CrN, TiN and NbN have been extensively studied in the past [1][2][3] and present a well-established industrial solution. In recent years, nanostructured, multilayer tribological coatings have attracted considerable attention from the scientific and industrial communities, due to enhanced properties compared to those usually found in the corresponding single-component nitride coatings.…”

“…The mechanical properties of those systems strongly depend on the properties of each sub-layer, on the periodicity (Λ) and on the coherency of the interface between the layers. From the many materials that can be chemically modulated in a nanoscale multilayer, the NbN/CrN system has attracted particular attention, since niobium nitride (NbN) stands out for its chemical stability [3], while chromium nitride (CrN) is an extremely hard and inert coating, being used since the beginning of the 1980s [1,12,13]. Hovsepian et al [14] have reported a superior pin on disk wear resistance of sputtered CrN/NbN multilayer coatings deposited by the PVD magnetron sputtering, when compared to single layer coatings and to electrodeposited chromium [15,16].…”