TRIBOLOGICAL PROPERTIES OF DIAMON D-LIKE
CARBON COATINGS AT FRICTION JOINTS LUBRICATED
WITH IONIC LIQUID

The paper reports the study of a-C: H and a-C:H:Si diamond-like carbon coatings obtained in plasma-assisted chemical vapour deposition processes PACVD. The influence of the coatings on tribological properties of tribopairs under dry friction and in lubrication with synthetic oil PAO-8 and selected ionic liquid was evaluated. To perform the analysis, 100Cr6 steel samples uncoated and coated with a-C:H and a-C:H:Si were compared. Surface topography studies were performed using an atomic force microscope. Using SEM with an EDS analyser, the surface morphology of the coatings was observed, and the elements contained in the coatings were identified. Tribotests were carried out in a ball-on-disc tribotester under dry friction and with lubricants. The characteristics of the texture of the samples before and after the tribotests were determined using a confocal microscope in an interferometric mode. The test results showed that the tribo-pairs with a-C:H in lubrication with ionic liquid had the best tribological characteristics, i.e., the lowest coefficient of sliding friction.

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Determining the Tribological Properties of Diamond-Like Carbon Coatings Lubricated with Biodegradable Cutting Fluids

Archives of Metallurgy and Materials ◽

10.1515/amm-2017-0306 ◽

2017 ◽

Vol 62 (4) ◽

pp. 2065-2072 ◽

Cited By ~ 1

Author(s):

D. Ozimina ◽

M. Madej ◽

J. Kowalczyk

Keyword(s):

Tribological Properties ◽

Vapour Deposition ◽

Chemical Vapour ◽

Hard Coatings ◽

Cutting Fluid ◽

Test Results ◽

Carbon Coatings ◽

Before And After ◽

Zinc Aspartate ◽

Surface Texture Analysis

Abstract The aim of the study was to determine the effectiveness of the biodegradable cutting fluid used instead of classical, usually toxic. This paper presents the results of tribological studies of a-C:H coatings formed on HS6-5-2C steel by plasma-assisted chemical vapour deposition. The coating structures were examined using a JSM-7100F SEM. The coating microhardness was measured with a Matsuzawa tester. The surface texture analysis was performed before and after the tribological tests with a Talysurf CCI Lite optical profiler. The tribological properties were investigated using a T-01 M tester and a T-17 tester. The tests were carried out under dry friction conditions and lubricated friction conditions using a lubricant with zinc aspartate. The test results show that the layer formed at the interface prevented the moving surfaces. The investigations discussed in this paper have contributed to the development of non-toxic and environmentally-friendly manufacturing because of the use of biodegradable cutting fluid and thin, hard coatings.

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Surface roughness, mechanical and tribological properties of ultrathin tetrahedral amorphous carbon coatings from atomic force measurements

Thin Solid Films ◽

10.1016/s0040-6090(03)00592-3 ◽

2003 ◽

Vol 436 (2) ◽

pp. 244-249 ◽

Cited By ~ 20

Author(s):

Dongping Liu ◽

Günther Benstetter ◽

Edgar Lodermeier

Keyword(s):

Surface Roughness ◽

Amorphous Carbon ◽

Tribological Properties ◽

Force Measurements ◽

Carbon Coatings ◽

Mechanical And Tribological Properties ◽

Tetrahedral Amorphous Carbon ◽

Atomic Force ◽

Amorphous Carbon Coatings

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Tribological Properties of the Overbased Calcium Sulfonate Complex Greases Containing Different Lubricant Additives

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.645.133 ◽

2013 ◽

Vol 645 ◽

pp. 133-136

Author(s):

Peng Qiao ◽

Yan Qiu Xia ◽

Xiang Yu Ge

Keyword(s):

Ionic Liquid ◽

Tribological Properties ◽

Friction And Wear ◽

Sliding Friction ◽

Tribological Performance ◽

Mining Equipment ◽

Wear Properties ◽

Friction Tester ◽

Calcium Sulfonate ◽

Friction And Wear Properties

Overbased calcium sulfonate complex greases have excellent friction and wear properties and have been widely used in metallurgy and mining equipment. The effects and tribological performance of molybdenum dialkydithiocarbamate (MoDTC) and ionic liquid 1-(2-hydroxyethyl)-3-methylimidazolium bis (triﬂuoromethylsulfonyl) imide ([C2OHMim][NTf2]), 1-(2-hydroxyethyl)-3-hexylimidazolium bis (triﬂuoromethylsulfonyl) imide ([C2OHHim][NTf2s]), added in overbased calcium sulfonate complex grease as additives were investigated by using reciprocating ball-on-disk sliding friction tester. The results showed that the two kinds of additives with a certain range of concentration could improve the tribological properties of greases.

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Tribological properties and characterization of diamond-like carbon coatings with silicon prepared by plasma-assisted chemical vapour deposition

Surface and Coatings Technology ◽

10.1016/0257-8972(91)90344-v ◽

1991 ◽

Vol 47 (1-3) ◽

pp. 710-721 ◽

Cited By ~ 162

Author(s):

Kazuyuki Oguri ◽

Tohru Arai

Keyword(s):

Chemical Vapour Deposition ◽

Tribological Properties ◽

Vapour Deposition ◽

Chemical Vapour ◽

Diamond Like Carbon ◽

Carbon Coatings ◽

Properties And Characterization

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The contribution of micro/nano-tribology to the interpretation of dry friction

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1243/0954406001522778 ◽

2000 ◽

Vol 214 (1) ◽

pp. 11-22 ◽

Cited By ~ 15

Author(s):

K. L. Johnson

Keyword(s):

Dry Friction ◽

Sliding Friction ◽

Surface Force ◽

The Real ◽

Real Area Of Contact ◽

Atomic Force ◽

Dislocation Mechanics ◽

Asperity Contacts ◽

Friction Measurements

Fundamental studies of the mechanics and physics of dry sliding friction between solid surfaces have been impeded in the past by surface roughness and the difficulty of determining the real area of contact. The last decade has seen an explosive development of techniques to study friction at single-asperity contacts in which the real and apparent contact areas coincide. The contribution of these developments to interpreting dry friction is discussed in this paper. Experiments with smooth compliant rubber led to an appreciation of the role of adhesive forces and to including its effects in contact mechanics. Atomically smooth surfaces are obtained in the surface force apparatus (SFA) through the property of mica to cleave on atomic planes, and in the atomic force/friction microscope (AFM) by the use of nanometre size contacts on single crystals. Based on friction measurements in the SFA and AFM, a hypothesis is advanced that sliding of atomically smooth contacts takes place by the nucleation and propagation of dislocation-like defects through the interface. An analysis by Hurtado and Kim [29] using dislocation mechanics suggests a ‘scale effect’ in which friction is governed by resistance to nucleation in very small contacts and by resistance to propagation in larger contacts.

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Tribological Properties of Porous PEEK Composites Containing Ionic Liquid under Dry Friction Condition

Lubricants ◽

10.3390/lubricants5020019 ◽

2017 ◽

Vol 5 (2) ◽

pp. 19 ◽

Cited By ~ 6

Author(s):

Xianzhu Huang ◽

Jian Wu ◽

Xiaohua Lu ◽

Xin Feng ◽

Yijun Shi

Keyword(s):

Ionic Liquid ◽

Tribological Properties ◽

Dry Friction ◽

Friction Condition

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Analysis of Mechanical and Tribological properties of Silicon incorporated Diamond Like Carbon Nanocomposite

10.21203/rs.3.rs-639114/v1 ◽

2021 ◽

Author(s):

V. Sakthi Murugan ◽

S. Madhu

Keyword(s):

Mechanical Properties ◽

Residual Stress ◽

Tribological Properties ◽

Vapour Deposition ◽

Chemical Vapour ◽

Diamond Like Carbon ◽

Mechanical And Tribological Properties ◽

Atomic Force ◽

Carbon Nanocomposite ◽

Scanning Electron

Abstract The Silicon (Si) contained diamond like carbon (DLC) nanocomposite were prepared by using thermal chemical vapour deposition (CVD) technique by varying the acetylene (C2H2) flowrates. The scanning electron microscope (SEM) results showed a smoother surface of nanocomposite at low C2H2 flowrates. The atomic force microscope (AFM) reveals the increase of particle size and surface roughness of the composite with respect to the C2H2 flowrates. The mechanical properties were evaluated using the nanoindentation and it is observed that the hardness (H) and young’s modulus (E) of the nanocomposite increases with increase of the C2H2 flow rate. The internal stress (𝝈) was computed by using Stoney’s equation and it is noticed that due to the incorporation of Si the residual stress significantly decreased. The tribological properties of the nanocomposite were analysed by computing the H/E, H3/E2, plasticity index (PI) and elasticity index (EI). The results showed that the Si incorporated nanocomposite (Si-DLC) has an excellent tribological properties.

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PROPERTIES OF DIAMOND-LIKE CARBON COATINGS ON THE TITANIUM ALLOY Ti13Nb13Zr

Tribologia ◽

10.5604/01.3001.0013.7765 ◽

2019 ◽

Vol 288 (6) ◽

pp. 39-46

Author(s):

Monika Madej ◽

Katarzyna Piotrowska ◽

Dariusz Ozimina

Keyword(s):

Titanium Alloy ◽

Dry Friction ◽

Vapour Deposition ◽

Optical Microscope ◽

Carbon Coatings ◽

Artificial Blood ◽

Ringer’S Solution ◽

Dlc Coating ◽

Before And After ◽

The Coefficient Of Friction

The paper discusses the results of experimental research on DLC type diamond coating a-C:H obtained by the technique of physical vapour deposition from PVD on titanium alloy Ti13Nb13Zr. Calotest and an optical microscope were used to determine the thickness of the obtained coating. The nano-hardness of uncoated and with a-C:H coating was determined by the indentation method using a Berkovich indenter. The geometric structure of the surface before and after tribological tests was assessed using a confocal microscope with an interferometric mode. Tests of the resistance of test materials to tribological wear were performed on a tribometer in reciprocating motion under technically dry friction, and friction with lubrication with an artificial blood solution and Ringer’s solution. Tests carried out for the combination of a 6 mm diameter Al2O3 ball-Ti13Nb13Zr titanium alloy disc without and with the DLC coating applied. The results obtained during the tests showed that the use of the DLC coating increases the hardness five times and reduces the friction. In the case of technically dry friction, the coefficient of friction decreased by 70%, the solution of artificial blood by 50%, and in the case of Ringer’s solution by 90%, in comparison with the results obtained for the Ti13Nb13Zr alloy.

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Self-Organized Criticality in Nanotribology

MRS Proceedings ◽

10.1557/proc-782-a5.1 ◽

2003 ◽

Vol 782 ◽

Cited By ~ 5

Author(s):

Micha Adler ◽

John Ferrante ◽

Alan Schilowitz ◽

Dalia Yablon ◽

Fredy Zypman

Keyword(s):

Dry Friction ◽

Sliding Friction ◽

Stick Slip ◽

Slip Mechanism ◽

Flat Surfaces ◽

Self Organized ◽

Atomic Force ◽

Lateral Forces ◽

Self Organized Criticality ◽

Sliding Distance

ABSTRACTWe present experimental results on dry friction, which are consistent with the hypothesis that the stick-slip mechanism for energy release is described by self-organized criticality. The data, obtained with an Atomic Force Microscope set to measure lateral forces– examines the variation of the friction force as a function of time – or sliding distance. The materials studied were nominally flat surfaces of mica, quartz, silica and steel. An analysis of the data shows that the probability distribution of slip sizes follows a power law. Our data strongly supports the existence of self-organized criticality for nano-stick-slip in dry sliding friction.

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