Analysis of the Structure of Multilayer Nanocrystalline Coatings Based on Plasma Mass Transfer Parameters Calculated by the Monte Carlo Method

Черногор, А. В.; Блинков, И. В.; Белов, Д. С.; Сергевнин, В. С.; Volkhonskii, A. O.

doi:10.1134/s1063785019020056

Cited by 5 publications

(3 citation statements)

References 13 publications

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“…The elemental composition of the obtained coatings is shown in the Table . The change in the composition was achieved by different arrangement of the used cathodes (TiNi, Cr and Ti) in the corresponding evaporation blocks of the unit, taking into account the fact that up to 80 % of the evaporated material vanishes in them, in the presence of magnetic separators [12].…”

Section: Resultsmentioning

confidence: 99%

“…The coatings were deposited on VK6 alloy substrates by arc-PVD method using a three-cathode vacu um-arc ion-plasma unit equipped with two magnetic drop fraction separators. The planetary rotation of the substrate holders ensures the formation of a coating with a two-level structure, including the layers obtained by rota ting the substrate holders around the table axis, and the sublayers several nanometers thick with a well-defined interface, which are formed due to the rotation of the substrate holders around their axis [12]. The current strength of the arc evaporating the cathodes was determined on the basis of its value ensuring stable arc burning and the absence of a considerable amount of the droplet phase in the formed plasma flow.…”

Section: Research Methods Research Methodsmentioning

confidence: 99%

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The influence of Ni on the composition, structure and properties of Ti-Cr-N coatings

Черногор

Блинков

Белов

et al. 2023

Izv. VUZ. Poroshk. Met.

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The influence of nickel on the structure and properties of Ti-Cr-N ion-plasma coatings obtained by arc-PVD method has been studied. With a nickel content of up to 11.9 at. %, the coating consists of Cr2N, Ti1 – xCrxN, and metallic Ni. Upon further increase in Ni concentration in the coating, intermetallic compound Ni3Ti is formed. The structure of the coatings was studied using the transmission electron microscopy. The coatings of Ti-Cr-N system are characterized by a columnar structure, in the columns of which Ti1 - xCrxN and Ti1 - yCryN (x > y) sublayers, being several nanometers thick and containing variable concentration of titanium and chromium, as well as Cr2N sublayers of about 25 nm are formed due to the complete solubility of TiN and Cr2N and the planetary rotation of the substrates, resulting in layer-by-layer stacking of the components of the evaporated cathodes. This structure remains intact in coatings of Ti-Cr-N-Ni system with a low nickel concentration (on the order of tenths of at. %). However, upon that, the column size refinement and an increase in biaxial compressive stresses from 6.7 to 9.7 GPa are observed, which results in an increase in hardness from 30 to 42 GPa. The coatings with a high nickel content are characterized by a multilayer architecture with an equiaxed polycrystalline structure of nanograins in layers. As Ni concentration increases, the hardness of the coating decreases to 16.7 GPa, which is associated with an increase in the fraction of relatively soft nickel in the coating and a decrease in macrostresses to -0.6 GPa. Upon that, the wear intensity increases from 3·10-15 to 5·10-15 m3/(N·m). The studied coatings of Ti–Cr–N and Ti–Cr–N–Ni systems are resistant to adhesive and cohesive destruction. With an increase in the nickel content upon measuring scratching, the destruction of the coatings occurs exclusively due to the plastic deformation.

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Section: Resultsmentioning

confidence: 99%

Section: Research Methods Research Methodsmentioning

confidence: 99%

The influence of Ni on the composition, structure and properties of Ti-Cr-N coatings

Черногор

Блинков

Белов

et al. 2023

Izv. VUZ. Poroshk. Met.

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“…Alongside nanorods works, Pflug et al [24] studied the growth of ZnO:Al during reactive sputtering by expanding direct simulation MC to include surface reactions. Chernogor et al [25,26] performed MC computations to study the properties of TiCrN-Mo 2 N-Ni films during arc discharge PVD. Chen et al [27] proposed a kMC model for predicting the grain boundary during MoS 2 growth.…”

Section: Physical Vapor Depositionmentioning

confidence: 99%

Monte Carlo and Kinetic Monte Carlo Models for Deposition Processes: A Review of Recent Works

Cheimarios

Kokkoris

et al. 2021

Front. Phys.

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Monte Carlo (MC) and kinetic Monte Carlo (kMC) models are widely used for studying the physicochemical surface phenomena encountered in most deposition processes. This spans from physical and chemical vapor deposition to atomic layer and electrochemical deposition. MC and kMC, in comparison to popular molecular methods, such as Molecular Mechanics/Dynamics, have the ability to address much larger time and spatial scales. They also offer a far more detailed approach of the surface processes than continuum-type models, such as the reaction-diffusion models. This work presents a review of the modern applications of MC/kMC models employed in deposition processes.

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The effect of nickel on the high-temperature properties of multilayer ceramic coatings

Черногор¹,

Блинков²,

Volkhonskiy³

et al. 2021

J. Phys.: Conf. Ser.

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The structure and composition of multicomponent TiCrMoN-Ni arc-PVD coatings with high nickel concentration (more than 8 at.%) are studied at bias potentials of 80-140 V. All coatings are characterized by a layered structure, the modulation period tends to decrease as increasing the bias potential. After annealing at 850 °C in vacuum, the coatings retain their layered structure without signs of dissolution of layers in each other. Nickel sublayers retain their polycrystalline structure, at the same time, the monolayer CrN are formed due to recrystallization.

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Analysis of the Structure of Multilayer Nanocrystalline Coatings Based on Plasma Mass Transfer Parameters Calculated by the Monte Carlo Method

Cited by 5 publications

References 13 publications

The influence of Ni on the composition, structure and properties of Ti-Cr-N coatings

The influence of Ni on the composition, structure and properties of Ti-Cr-N coatings

Monte Carlo and Kinetic Monte Carlo Models for Deposition Processes: A Review of Recent Works

The effect of nickel on the high-temperature properties of multilayer ceramic coatings

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