In this paper, diamond-like carbon (DLC) coatings with Si and O co-doping (Si/O-DLC) were deposited by reactive magnetron sputtering using a gas mixture of C2H2, O2 Ar to sputter silicon/graphite splicing target. The content in the Si/O-DLC was controlled tuning flux mixture. composition, chemical bond structure, mechanical properties tribological behavior investigated X-ray photoelectron spect...

Abstract Molybdenum dialkyldithiocarbamate (MoDTC) is widely used as a friction modifier in engine lubricating oil. Under MoDTC lubrication, the and wear behaviors of tungsten-doped diamond-like carbon (W-DLC) films annealed at 100–400 °C were discussed evaluated using scanning electron microscopy (SEM), atomic force (AFM), Raman spectroscopy. (polymerized alpha olefin) PAO + coefficient all sa...

Whilst additive manufactured polymers have unique and useful properties, the deficiency of water barrier performance limits their shelf-life functionality as a diffusion for long life product durability. In this work, induced modification diamond-like carbon (DLC) coatings using nitrogen (N) (up to 2.02 at. %) improve has been studied. DLC thin films were deposited onto additively polymers: acr...

In this study, we investigated the frictional behavior of both hydrogenated and hydrogen-free diamondlike carbon (DLC) films in high vacuum (10 Pa) at room temperature. Water was also introduced into the vacuum chamber to elucidate its effects on DLC film tribology. The hydrogen-free DLC (also referred to as tetrahedral amorphous carbon, or ta-C) was produced by an arc-PVD process, and the high...

Diamond-like carbon (DE) films are characterized by very low friction coefficients, high wear resistance and high corrosion resistance. Depending upon the testing environment, the coefficient of friction can be as low as 0.01. As-deposited films are wear resistant in vacuum as well as in atmospheric ambient. However, the tribological properties of DLC are strongly affected by the deposition met...

Osteoarthritis-oriented synovial fluid (OASF), i.e., that typical of a patient with osteoarthritis, has different physical and biological characteristics than bovine serum (BS), a lubricant widely used in biotribological investigations. Micro-dimpled and diamond-like carbon- (DLC) coated surfaces are key emerging interfaces for orthopedic implants. In this study, tribological performances of di...

Abstract A one-step method was developed to create a highly biocompatible micropatterned surface on diamond-like carbon (DLC) through irradiation with nitrogen ion beam and thus enhance the biocompatibility of osseointegrated surfaces biotribological performance articular surfaces. The mechanisms were analyzed in terms structure morphology DLC. It demonstrated that layer enriched sp 3 C?N bonds...

As previous studies indicated, diamond-like carbon (DLC) layers exhibit outstanding biocompatible properties. Additionally, due to high hardness and transmittance in infrared visible parts of spectra it is possible utilize for application ophthalmic optics. DLC are suitable coating spectacle lenses, contact lenses even intraocular lenses. In this paper, we focused on wear resistance different c...

An electrochemical impedance spectroscopy (EIS) capacitance diagnostic method was developed to measure the nanoporosity in DC magnetron-sputtered diamond-like carbon (DLC) films deposited on highly conductive silicon (111) substrates. The measurement was based on a calibration of artificial defects enclosed in a well-defined area. Films of known nanoporosity, as determined by EIS, were used to ...