Tribological Behavior of Diamond-like Carbon Coatings under Boundary Friction: Part I. Structure, Testing Methods, Lubrication by Adsorption Layers

Buyanovskii, I. A.; Хрущов, М. М.; Самусенко, В. Д.

doi:10.1134/s2075113322040086

Cited by 8 publications

(2 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These coatings are used in parallel with molecular additives, which are proposed to adsorb on the DLC to reduce friction and help prevent wear. Previous studies on DLC have focused on tribological measurements. − There is also some interest in biological systems such as protein and amino acid adsorption on fluorine-doped DLC. , There are a number of studies reported in the literature that have focused on the characterization of hydrogenated amorphous carbon; − however, there have been considerably fewer studies on non-hydrogenated DLC.…”

Section: Introductionmentioning

confidence: 99%

Diamond-Like Carbon: A Surface for Extreme, High-Wear Environments

Sharifi,

Smith,

Madden

et al. 2023

Langmuir

View full text Add to dashboard Cite

In this study, we present an in-depth characterization of a diamondlike carbon (DLC) film, using a range of techniques to understand the structure and chemistry of the film both in the interior and particularly at the DLC/air surface and DLC/liquid interface. The DLC film is found to be a combination of sp 2 and sp 3 carbon, with significant oxygen present at the surface. The oxygen seems to be present as OH groups, making the DLC somewhat hydrophilic. Quartz-Crystal Microbalance (QCM) isotherms and complementary neutron reflectivity data indicate significant adsorption of a model additive, bis(2ethylhexyl) sulfosuccinate sodium salt (AOT) surfactant, onto the DLC from water solutions and indicate the adsorbed film is a bilayer. This initial study of the structure and composition of a model surfactant is intended to give a clearer insight into how DLC and additives function as antiwear systems.■ EXPERIMENTAL SECTION Materials. Deuterium oxide (D 2 O) was obtained from Sigma (>99% purity, >99.9% D atom). Ultrapure water (UPW18.2 MΩ cm)

show abstract

Section: Introductionmentioning

confidence: 99%

Diamond-Like Carbon: A Surface for Extreme, High-Wear Environments

Sharifi,

Smith,

Madden

et al. 2023

Langmuir

View full text Add to dashboard Cite

show abstract

“…Diamond-like carbon (DLC) films demonstrate remarkable mechanical properties such as low friction coefficient, enhanced strength and hardness, and exceptional wear resistance [1][2][3][4][5][6], thus have been used for lubrication or as hard protective films of mechanical components [7][8][9]. In industrial applications, considering the influence of load and speed and other conditions, the increase of local contact stress of DLC films can cause their deformation and structural failure, and even lead to their peeling [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

A coarse-grained study on mechanical behaviors of diamond-like carbon based on machine learning

Xiong¹,

Yu²,

Chen³

et al. 2023

Nanotechnology

View full text Add to dashboard Cite

Diamond-like carbon (DLC) films have broad application potential due to their high hardness, high wear resistance, and self-lubricating properties. However, considering that DLC films are micron-scale, neither finite element methods nor macroscopic experiments can reveal their deformation and failure mechanisms. Here we propose a coarse-grained molecular dynamics (CGMD) approach which expands the capabilities of molecular dynamics simulations to uniaxial tensile behavior of DLC films at a higher scale. The Tersoff potential is modified by high-throughput screening calculations for CGMD. Given this circumstance, machine learning (ML) models are employed to reduce the high-throughput computational cost by 86%, greatly improving the efficiency of parameter optimization in second- and fourth-order CGMD. The final obtained coarse-grained tensile curves fit well with that of the all-atom curves, showing that the ML-based CGMD method can investigate DLC films at higher scales while saving a large number of computational resources, which is important for promoting the research and production of high-performance DLC films.

show abstract

A molecular dynamics study on the lubrication performance of ionic liquids

Jiang

Tang

et al. 2022

J Mater Sci

View full text Add to dashboard Cite

Tribological Behavior of Diamond-like Carbon Coatings under Boundary Friction: Part I. Structure, Testing Methods, Lubrication by Adsorption Layers

Cited by 8 publications

References 38 publications

Diamond-Like Carbon: A Surface for Extreme, High-Wear Environments

Diamond-Like Carbon: A Surface for Extreme, High-Wear Environments

A coarse-grained study on mechanical behaviors of diamond-like carbon based on machine learning

A molecular dynamics study on the lubrication performance of ionic liquids

Contact Info

Product

Resources

About