Hydrogen free diamond-like carbon (DLC) coatings have been the subject of investigation all around the world for the last 30 years. DLC, due to its unique properties such as: chemical inertness, high mechanical hardness, high electrical resistivity combined with a characteristics of a wide band semiconductor, is a very promising material for biomedical, mechanical and electrical applications. O...

We present a method for characterizing ultrathin films using sensitivity-enhanced atomic force acoustic microscopy, where a concentrated-mass cantilever having a flat tip was used as a sensitive oscillator. Evaluation was aimed at 6-nm-thick and 10-nm-thick diamond-like carbon (DLC) films deposited, using different methods, on a hard disk for the effective Young's modulus defined as E/(1 - ν(2)...

Vickers indentation is used to measure the hardness of materials. In this study, numerical simulation of Vickers indentation experiment was performed for Diamond like Carbon (DLC) coated materials. DLC coatings were deposited on stainless steel 304 substrates with Chromium buffer layer using RF Magnetron and T-shape Filtered Cathodic Vacuum Arc Dual system The objective of this research is to u...

Atomic force microscopy (AFM) was used for visualization of a nano-oxidation technique performed on diamond-like carbon (DLC) thin film. Experiments of the nano-oxidation technique of the DLC thin film include those on nano-oxidation points and nano-oxidation lines. The feature sizes of the DLC thin film, including surface morphology, depth, and width, were explored after application of a nano-...

The mechanical and tribological properties of three types diamond like carbon (DLC) coatings, i.e., non-doped, Si-doped, W-doped DLC, are evaluated. Dry reciprocating sliding wear tests were performed to evaluate the effect frequency/velocity on friction, adhesion, wear. degree graphitization non-doped DLC increases with velocity, which results in a lower coefficient friction (COF), decrease ra...

The tribological behaviour of diamond-like carbon (DLC) and graphene nanoplatelets (GNP) nanocomposite has not been previously explored in a lubricated environment, with some previous studies reporting only on materials the surface DLC. In this study DLC-GNP films various GNP coverages were synthesised by 3 step process: spin coating suspension, heat treatment, DLC deposition. study, effect cov...

Piston rings (PR) are known for almost a quarter of the friction losses in internal combustion engines. This research work aims to improve tribological performance PR by recently developed variant Diamond-like Carbon (DLC) coatings deposited mixture Ar and Ne plasma atmosphere (Ne-DLC) high-power impulse magnetron sputtering (HiPIMS). For benchmark, widely used Chromium Nitride (CrN) DLCs pure ...

Si-incorporated diamond-like carbon (Si-DLC) coatings ranging from 0 to 2 at % Si were deposited on Ti-alloy substrate by means of radio frequency plasma-assisted chemical vapor deposition (r.f. PACVD) technique, using a mixture of benzene (C(6)H(6)) and silane (SiH(4)) as the reaction gas. The synergy in wear and corrosion of Si-DLC coatings was investigated by tribological and electrochemical...