Tribology of Carbon-Based Coatings

A special issue of Lubricants (ISSN 2075-4442).

Deadline for manuscript submissions: closed (30 May 2014) | Viewed by 11887

Special Issue Editors


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Guest Editor
Thin Film Physics Division, Department of Physics, IFM, Linköping University, SE-581 83 Linköping, Sweden
Interests: tribology; nanotribology; tribochemistry; dry lubrication; nanomechanics; carbon-based coatings; hard coatings; soft coatings

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Co-Guest Editor
Department of Mechanical Engineering, Oakland University, 2200 N. Squirrel Rd., Rochester, MI 48309, USA
Interests: tribology; diamond; diamond-like carbon; silicon carbide; grapheme; molecular simulation; modeling; tribochemistry; friction and wear mechanisms

Special Issue Information

Dear Colleagues,

During the last three decades, carbon-based coatings have enjoyed a growing interest in several industrial applications. By tuning the carbon sp3-to-sp2 bonding ratio and by alloying the carbon with other elements, the researchers have been able to tailor unique physical, mechanical, and tribological properties in order to satisfy an increased technological demand. Nitrogen doping and other alloying additions like metals, boron, silicon, phosphorous, fluorine, etc., have also been developed to improve their mechanical and tribological properties.

Already in the 1990’s, carbon-based coatings enabled the operation of fuel injectors in gasoline and diesel engines, providing necessary protection against wear, scuffing and other adverse effects of lubricant-lean friction. Nowadays, carbon-based coatings are found in most facets of our daily lives, from the protective films on the hard disks of computers to the lubricious coatings on the blades of a disposable shaving machine. They are used in the chemical, food and packaging industries (valves and cutting hardware), semiconductor processing equipment (wafer handling and mechanical drives of cluster tools), compressors and pumps, and automotive industry (piston rings, camshafts, gears), biomedical applications (stents, heart valves, chirurgical instruments), etc. All the emerging applications of carbon-based coatings are originated in the great variety of crystalline and disordered structures that are possible to obtain by many different deposition techniques.

In this special issue we are requesting original contributions from academic or industrial researchers working on theoretical and/or experimental aspects concerning all kind of carbon-based coatings with improved tribological properties, from basic research to applied (tribological) uses.

Prof. Dr. Esteban Broitman
Dr. James David Schall
Guest Editors

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Keywords

  • carbon-based coatings
  • diamond-like coatings (DLC)
  • CX coatings (X = metal, N, Si, P, B, F, etc)
  • amorphous carbon-based coatings
  • nanocrystralline carbon-based coatings
  • fullerene-like carbon-based coatings
  • multilayers
  • PVD coatings
  • CVD coatings
  • plasma-assisted deposited coatings
  • tribology (friction, wear)

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Published Papers (1 paper)

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Review
Reducing Friction and Wear of Tribological Systems through Hybrid Tribofilm Consisting of Coating and Lubricants
by Shuichiro Yazawa, Ichiro Minami and Braham Prakash
Lubricants 2014, 2(2), 90-112; https://doi.org/10.3390/lubricants2020090 - 23 Jun 2014
Cited by 39 | Viewed by 11210
Abstract
The role of surface protective additives becomes vital when operating conditions become severe and moving components operate in a boundary lubrication regime. After protecting film is slowly removed by rubbing, it can regenerate through the tribochemical reaction of the additives at the contact. [...] Read more.
The role of surface protective additives becomes vital when operating conditions become severe and moving components operate in a boundary lubrication regime. After protecting film is slowly removed by rubbing, it can regenerate through the tribochemical reaction of the additives at the contact. However, there are limitations about the regeneration of the protecting film when additives are totally consumed. On the other hand, there are a lot of hard coatings to protect the steel surface from wear. These can enable the functioning of tribological systems, even in adverse lubrication conditions. However, hard coatings usually make the friction coefficient higher, because of their high interfacial shear strength. Amongst hard coatings, diamond-like carbon (DLC) is widely used, because of its relatively low friction and superior wear resistance. In practice, conventional lubricants that are essentially formulated for a steel/steel surface are still used for lubricating machine component surfaces provided with protective coatings, such as DLCs, despite the fact that the surface properties of coatings are quite different from those of steel. It is therefore important that the design of additive molecules and their interaction with coatings should be re-considered. The main aim of this paper is to discuss the DLC and the additive combination that enable tribofilm formation and effective lubrication of tribological systems. Full article
(This article belongs to the Special Issue Tribology of Carbon-Based Coatings)
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