Tribology of fluorinated diamond‐like carbon coatings: first principles calculations and sliding experiments

Şen, Fatih; Qi, Yue; Alpas, A.T.

doi:10.1002/ls.1166

Cited by 17 publications

(13 citation statements)

References 24 publications

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“…First‐principle calculations were applied to study tribological properties between aluminium and fluorinated DLC (F‐DLC) surfaces. In this sense, Sem and et al present results of sliding contact experiments, which correlate well with first‐principle calculations. The generation of repulsive forces between two F‐passivated surfaces as a result of F transfer to the Al surface resulted in attainment of a low friction coefficient (0.1–0.14) between Al and F‐DLC.…”

supporting

confidence: 56%

TriboBR 2010 special issue editorial

Souza

Mello

2013

Lubrication Science

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The organised activities of Brazilian Tribology started in the end of the 1980s and, at that time, were mainly focused on abrasive wear, mining and metallurgy of wear-resistant materials. The first Brazilian Seminar on wear-resistant materials was held at the University of Sao Paulo in 1989. Six additional seminars were held in the following 20 years, during which the content evolved from wear-resistant materials, mainly abrasion, to tribology in general. Throughout those years, Brazilian tribology has experienced significant growth, up to a point where almost every Brazilian conference on related areas has a track/session on tribology.The TriboBR 2010 presented a landmark in Brazilian Tribology, since none of the previous meetings had as much international visibility. The conference included plenary lectures by Dr Ali Erdemir, Prof. Karl-Heinz zum Gahr, Prof. Jean Michel Martin, Prof. Hugh Spikes, Prof. Kenneth Holmberg, Prof. Staffan Jacobson and Prof. J. A. Williams, as well as invited contributions by Prof. Izhak Etsion, Prof. Akemi Ito, Dr Maria Isabel De Barros Bouchet and Dr Bronovets Marat Aleksandrovich. Additionally, delegates from 23 countries attended the conference. This participation may be regarded as a sign of the extent of development that tribological studies have reached in Brazil. This development has given rise to a conference where not only tribologists from different parts of the world may discuss their results and findings among themselves, but Brazilian tribologists also have the opportunity and the challenge of discussing their results with the international community and vice versa.This special issue contains 10 selected papers from TriboBR 2010. The great majority are experimental works and address a variety of topics, confirming that the conference has attracted and directed discussions that cover many areas of the wide field of tribology. Thus, although the conference provided an environment for the continuity in the discussion of the tribological behaviour of more traditional wear-resistant materials, such as high-chromium white cast iron alloys and hardfacing deposits, it also had room for the discussion of the fundamentals of tribology (surface texturing and finishing, first-principle calculations and wear regime transitions), tribomaterials {from advanced (fluorinated diamond-like carbon [DLC]) to green tribomaterials (plantain fibres reinforced polymer)}, abrasion tests and modelling of porous bearings.

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supporting

confidence: 56%

TriboBR 2010 special issue editorial

Souza

Mello

2013

Lubrication Science

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“…Because DSC films and surfaces are mainly composed of sp 3 bond, most of the calculations focus on the atomic passivation mechanism. These results show that terminated atoms and ion group, such as H, F, O and OH-, can effectively reduce interfacial activity, which corresponds to low friction and wear [8,[11][12][13][14][15][16][17][18][19][20][21][22]. It also should be emphasized that the passivation effect is severely affected by the terminated atoms.…”

Section: Introductionmentioning

confidence: 79%

“…Compared to amorphous DLC films, DSC films have much simpler geometric structure, which is helpful for researchers to study contributions of special mechanism to complex friction phenomena of diamond coating [10]. As the simple crystal structure and the corresponding less calculation resource requirement, several theoretical calculations have investigated friction properties of DSC films and surfaces [8,[11][12][13][14][15][16][17][18][19][20][21][22]. Because DSC films and surfaces are mainly composed of sp 3 bond, most of the calculations focus on the atomic passivation mechanism.…”

Section: Introductionmentioning

confidence: 99%

The Flexible Lubrication Performance of Graphene Used in Diamond Interface as a Solid Lubricant: First-Principles Calculations

Wang

Yang

et al. 2019

Nanomaterials

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The interfacial friction performances of graphene covered and hydrogen-terminated diamond surfaces were investigated comparatively by first-principles calculations within density functional theory (DFT). Both systems exhibit similar excellent lubricating effects under small load, but the graphene covered interface presents small friction than that of hydrogenated system for the larger load. The calculated interfacial friction between two sheets of graphene covered diamond surface increases slowly than that of hydrogenated system in a wide range of pressure scale, and the friction difference between the two systems increases with increasing external pressure, indicating that graphene has flexible lubricating properties with high load-carrying capacity. This behavior can be attributed to the large interlayer space and a more uniform interlayer charge distribution of graphene covered diamond interface. Our investigations suggest that graphene is a promising candidate as solid lubricate used in diamond film, and are helpful for the understanding of interfacial friction properties of diamond film.

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“…First principles calculations were conducted by Sen et al [85] to study tribological properties of aluminium and fluorinated diamond-like carbon (F-DLC) surfaces. An interface model that examined the interactions between Al (111) and F-terminated diamond (111) surfaces revealed that F atoms would transfer to the Al surface in increasing quantities with an increase in the contact pressure and the F transfer would lead to the formation of a stable AlF 3 compound at the Al surface.…”

Section: Dlc Filmsmentioning

confidence: 99%