High-velocity air fuel (HVAF) coating processes have advantages over conventional high-velocity oxygen (HVOF) processes, resulting in coatings with superior properties. The present review first provides a concise overview of HVAF coatings, highlighting their HVOF coatings. Then, the fundamentals solid particle, slurry, and cavitation erosion are briefly introduced. Finally, performance for eros...

ni-p and ni layers multilayer coatings were applied to az31 magnesium alloy utilizing electroless and electrodeposition procedures. the aim of the project was to decrease cracks and increase corrosion resistance of the coatings. in order to compare the coatings, the effect of single layer electroless ni-p coatings with different thicknesses was also investigated. the microstructure and phase co...

Ultra-thin diamond-like carbon (DLC) coatings are used in precision engineering applications, such as magnetic storage devices, to protect intricate structures from wear and corrosion. A DLC coating typically consists of hard amorphous carbon in combination with an interlayer such as silicon (Si), to improve adhesion to the substrate material. Deformation and delamination of these coatings, eve...

In order to improve the adhesion of hard coatings such as CrN, a surface pretreatment by the novel high power impulse magnetron sputtering (HIPIMS) technique followed by reactive unbalanced d.c. magnetron sputtering deposition was performed using a Cr target. The HIPIMS plasma comprising a high metal ion-to-neutral ratio consisting of singleand doublecharged metal species identified by mass spe...

The work is devoted to the analytical substantia-tion of protection technological means and tools from gas-abrasive impact. It shown that in order reduce friction force, main wear factor, it necessary apply hard thin coatings with microelasticity surface.

The work is devoted to the search for new vacuum-plasma coatings with high hardness increase durability of compressor blades GTE aircraft engines Ti-Al-N-based obtained by Avinit technologies, which ensure application hard, high-quality dramatically reduced micro-arc damage, were selected as candidates. multilayer have higher functional characteristics than TiN (microhardness, crack resistance,...

Calcium phosphate coatings have been applied to the surface of metallic prostheses to mediate hard and soft tissue attachment for more than 40years. Most coatings are formed of high purity hydroxyapatite, and coating methods are often designed to produce highly crystalline surfaces. It is likely however, that coatings of lower crystallinity can facilitate more rapid tissue attachment since the ...

13. ABSTRACT (Maximum 200 words) Prompted by the prediction of Cohen and coworkers that beta carbon nitride may have properties similar to diamond, there have been many attempts to synthesize this hypothetical metastable material. We successfully synthesized this material via epitaxial stabilization using TiN(lll) and ZrN(lll) as the growth template. The coatings were CN/TiN or CN/ZrN multilaye...

The present work studies the synthesis and performance of TiC/H13 tool steel composite coatings obtained by the laser deposition technique. he effect of laser beam-scanning speeds and the concentrations of TiC in injected powder on the morphologies and microstructures of deposited eads are investigated. The results show that the beam-scanning speeds affect the size and morphology of the beads. ...