Scuffing Performance of Amorphous Carbon During Dry-Sliding Contact

Alzoubi, M. F.; Ajayi, O. O.; Woodford, John; Erdemir, Ali; Fenske, G.R.

doi:10.1080/10402000108982499

Cited by 13 publications

(5 citation statements)

References 10 publications

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“…In particular, the DLC films based on C/W (either nanocomposite or multilayered) work extremely well under lubricated sliding conditions, and mechanistically, such superior performance is attributed to the formation of WS x -rich boundary films on sliding contact surfaces [68]. They are currently used as protective films on gears, piston rings, bearings, fuel injectors and several other demanding engine applications [102][103][104][105][106]. In recent years, such films have been the subject of more intense scientific studies and attracted much broader interest from several industrial end users [107][108][109][110].…”

Section: Novel Architecturesmentioning

confidence: 99%

Tribology of diamond-like carbon films: recent progress and future prospects

Erdemir¹,

Donnet²

2006

J. Phys. D: Appl. Phys.

1,075

579

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During the past two decades, diamond-like carbon (DLC) films have attracted an overwhelming interest from both industry and the research community. These films offer a wide range of exceptional physical, mechanical, biomedical and tribological properties that make them scientifically very fascinating and commercially essential for numerous industrial applications. Mechanically, certain DLC films are extremely hard (as hard as 90 GPa) and resilient, while tribologically they provide some of the lowest known friction and wear coefficients. Their optical and electrical properties are also extraordinary and can be tailored to meet the specific requirements of a given application. Because of their excellent chemical inertness, these films are resistant to corrosive and/or oxidative attacks in acidic and saline media. The combination of such a wide range of outstanding properties in one material is rather uncommon, so DLC can be very useful in meeting the multifunctional application needs of advanced mechanical systems. In fact, these films are now used in numerous industrial applications, including razor blades, magnetic hard discs, critical engine parts, mechanical face seals, scratch-resistant glasses, invasive and implantable medical devices and microelectromechanical systems. DLC films are primarily made of carbon atoms that are extracted or derived from carbon-containing sources, such as solid carbon targets and liquid and gaseous forms of hydrocarbons and fullerenes. Depending on the type of carbon source being used during the film deposition, the type of bonds (i.e. sp 1 , sp 2 , sp 3) that hold carbon atoms together in DLC may vary a great deal and can affect their mechanical, electrical, optical and tribological properties. Recent systematic studies of DLC films have confirmed that the presence or absence of certain elemental species, such as hydrogen, nitrogen, sulfur, silicon, tungsten, titanium and fluorine, in their microstructure can also play significant roles in their properties. The main goal of this review paper is to highlight the most recent developments in the synthesis, characterization and application of DLC films. We will also discuss the progress made in understanding the fundamental mechanisms that control their very unique friction and wear behaviours. Novel design concepts and the principles of superlubricity in DLC films are also presented.

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Section: Novel Architecturesmentioning

confidence: 99%

Tribology of diamond-like carbon films: recent progress and future prospects

Erdemir¹,

Donnet²

2006

J. Phys. D: Appl. Phys.

1,075

579

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“…Plasma-enhanced chemical vapor deposition (PECVD) is used to produce diamond-like carbon and near-frictionless carbon coatings on steel substrates. Thin-film carbon coatings applied by this technique are described as ''nanosmooth'' and have excellent friction modifying, wear reduction and antiscuffing characteristics (205)(206)(207).…”

Section: Bonded Solid-film Lubricantsmentioning

confidence: 99%

Lubrication and Lubricants

Gresham

Canter²,

Zabawski³

et al. 2015

Kirk-Othmer Encyclopedia of Chemical Technology

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Lubrication is a process in which a lubricant is placed between rubbing surfaces to control friction and reduce wear. This article outlines the nature of the frictional force, the wear process, the role of surface characteristics, and the mechanisms of lubrication. The manufacture and classification of lubricating oil base stocks, including refined petroleum stocks, chemical base stocks, stocks synthesized from other chemicals, and vegetable oils, are covered. The composition and function of lube oil additives are described for enhancing oxidation stability, corrosion resistance, wear reduction, friction modifying, viscosity–temperature characteristics, and other important performance characteristics. The performance characteristics of lubricating oils for selected applications are discussed, including automotive engine oils, diesel engine oils, automatic transmission fluids, automotive gear oils, jet engine lubes, and industrial turbine oils. Metalworking fluids, lubricating grease, solid‐film lubricants, and lubrication in extreme environments are covered, as are the lubricants market and environmental and health concerns.

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“…Horng [18] also derived a methodology to predict the onset of scuffing in a rough surface contact which included the effects of temperature and film thickness. More recently Alzoubi et al [19] studied the effect of a near frictionless carbon coating on preventing scuffing. It appears that low friction coatings are very effective at reducing the occurrence of scuffing.…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation of various materials on thrust washer bearing operation

Jackson

Green

2007

Proceedings of the Institution of Mechanical Engineers, Part J:

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The current research experimentally quantifies and maps the behaviour of various thrust washer configurations under various conditions. The bearings are tested at controlled loads and speeds for a governed period of time (up to 14 h) or until failure. The experimental results show that at some loads and speeds the bearing operates with a near full hydrodynamic film and under more harsh conditions it operates in the boundary lubrication regime. The experimental results indicate that coatings enhance performance by decreasing friction and thus decreasing the heat generated. By decreasing the generated heat, the physical mechanisms of thermoelastic instability and thermoviscous distress are less likely to occur. Using bronze will decrease the friction between the bearings, although it may also decrease the life of the bearing. However, using more than one round washer appears to not significantly benefit washer-bearing performance.

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Scuffing Performance of Amorphous Carbon During Dry-Sliding Contact

Cited by 13 publications

References 10 publications

Tribology of diamond-like carbon films: recent progress and future prospects

Tribology of diamond-like carbon films: recent progress and future prospects

Lubrication and Lubricants

An experimental investigation of various materials on thrust washer bearing operation

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