DLC-coatings
Tribological behaviour of H- and W-DLC coatings: Effects of environment and temperature on adhesion
... The percentage of the relative humidity (% RH) in the test atmosphere has been found to be an important contributor to the changes in the COF of the DLC coatings. A pin-on-disk type sliding test conducted ...
205
Influence of Wettability and Mechanical Properties on Tribological Performance of DLC Coatings under Water Lubrication
... The DLC coating hardness is presumed to be the main influential factor that dominates wear behavior ...for DLC coatings. The hardness of DLC coatings had been measured and the effect of ...
14
Tribological Characteristics of DLC Coatings in Vacuum under Sliding Contact
... thick DLC coated specimens and up to 400 m sliding in 10 μm thick DLC coated ...thick DLC coated specimens taken during the gradual wear stage of the test (Figure ...of DLC coatings ...
6
Comparison of Alcohol and Fatty Acid Adsorption on Hydrogenated DLC Coatings Studied by AFM and Tribological Tests
... (DLC) coatings with respect to boundary lubrication has been studied only very rarely, even though such adsorption has proved to be one of the main boundary-lubricating mechanisms for metal ...onto ...
12
Si DLC coatings optimized for low wear and low friction applications
... Si-DLC coatings are usually deposited by the PECVD ...Si- DLC. Due to the deposition of Si-DLC in highly hydrogenous process atmospheres a high atomic content of hydrogen is incorporated in ...
181
DLC coatings in high temperature hydrogen sulfide environment
... DLC coatings are metastable materials and deposition methods of DLC films are non-equilibrium processes where energetic ions interact with the ...carbon DLC coating architectures and a number ...
11
Friction reduction mechanisms in boundary lubricated W-doped DLC coatings
... (DLC) coatings have been widely used in the automotive industry since their first introduction in 1971 [1, ...of DLC non-ferrous surfaces ...of DLC coatings and the complexity of ...
36
DLC Coatings in Oil and Gas Production
... carbon DLC coatings are corrosion resistant and biocompatible with good cytological properties, which proved their successful application in the bio-medical sector ...applications, DLC ...
15
Tribocorrosion evaluation of hydrogenated and silicon DLC coatings on carbon steel for use in valves, pistons and pumps in oil and gas industry
... (DLC) coatings in Subsea Safety Control Valves (SSCV), piston and ...environments. Coatings were deposited using Plasma Enhanced Chemical Vapour Deposition ...Hydrogenated DLC films was ...
31
The Effect of Bias Voltage and Gas Pressure on the Structure, Adhesion and Wear Behavior of Diamond Like Carbon (DLC) Coatings With Si Interlayers
... (DLC) coatings has found widespread usage in many areas of engineering due to substantial benefits associated with properties including high surface hardness low friction, improved wear resistance, chemical ...
17
The performance and mechanisms of DLC-coated surfaces in contact with steel in boundary-lubrication conditions – a review
... hard coatings in mechanical applications has been increasing rapidly fo r more than 20 ...novel coatings, such as improved ceramic, diamond-like-carbon and advanced nano-composites, has promoted scientific ...
18
Tribological behavior of hydrogenated and non-hydrogenated diamond-like carbon coatings in dry and lubricated sliding
... For lubricated sliding, the boundary lubrication (BL) portion of the Stribeck curve was generated for uncoated 52100 steel, H- DLC and NH-DLC coatings. Then a two phase experiment was c[r] ...
168
The influence of anti-wear additive ZDDP on doped and undoped diamond-like carbon coatings
... A pin-on-reciprocating-plate tribometer was used to evaluate the tribological performance of three DLC coatings; a schematic of this can be seen in figure 2-1. The frictional force was measured using a ...
27
The analysis of complex tribological system of single point incremental sheet metal forming – SPIF
... hard coatings (like TiN, TiCN, TiAIN, CrN, ...hard coatings are not frequently used in forming ...of coatings on the basis of hard carbon ...- DLC). These coatings with the major ...
8
Waterborne Coatings : An Alternative of Conventional Coatings
... Emulsions/latex paints - are quite similar to water-dispersible paints. The main difference is that the resin clusters in emulsions tend to be larger, and an emulsifier is required to keep the clusters in suspension. ...
5
Functional Coatings: Superhydrophopbic And Conductive Coatings
... these coatings can release low molecular weight silicone fluid that comes from the bulk of coating, surrounds contaminants and recover hydrophobicity (Cherney et al, ...rubber coatings for insulators, but ...
269
Photochemically modified diamond-like carbon surfaces for neural interfaces
... pristine DLC or DLC-CHO samples, con fi rming successful binding of the tri fl uoroacetate- protected ...the DLC-CHO samples, just over a two-fold increase in the area of the peak centred at ...
8
Synthesis and Properties of Electrodeposited Ni-B-Zn Ternary Alloy Coatings
... nickel plating electrolyte results in co-deposition of boron (B) and zinc (Zn). Table 3 presents the chemical composition of Ni-B and Ni-B-Zn alloy coatings. It can be noticed from Table 3 that both boron (B) and ...
17
Microstructure and Properties of Electrodeposited Ni-CeO2 Coatings
... The coating surface morphologies were analyzed using optical microscopy. The shape and composition of coating cross-section were analyzed using a field emission scanning electron microscope (FESEM) with an energy ...
9
Deposition and Characterization of Multilayer DLC/BN Films
... themultilayer DLC/BN film was deposited to be a DLC layer, as shown in Figure ...multilayer DLC/BN films were deposited by controlling the number of rotating ...
8