It is desirable to improve tool steel wear resistance produce pieces with precise dimensions and increase the lifetime of tools. The aim this work was modify surface 1.2344 (X40CrMoV5-1) hot properties. Surface modification achieved in three steps: first, hardening applied, followed by plasma nitridation and, finally, physical vapor deposition (PVD) employed a TiN/AlTiN multilayer coating. micr...

Biocompatibility improvements for blood contacting materials are of increasing interest for implanted devices and interventional tools. The current study focuses on inorganic (titanium, titanium nitride, titanium oxide) as well as diamond-like carbon (DLC) coating materials on polymer surfaces (thermoplastic polyurethane), deposited by magnetron sputtering und pulsed laser deposition at room te...

Abstract Plasma spray-physical vapor deposition (PS-PVD) as a novel process was used to prepare feather-like columnar thermal barrier coatings (TBCs). This special microstructure shows good strain tolerance and non-line-of-sight (NLOS) deposition, giving great potential application in aero-engine. However, due serious service environment of aero-engine, particle erosion performance is weakness ...

We investigate vapor-deposited glasses of a phenanthroperylene ester, known to form an equilibrium hexagonal columnar phase, and show that liquid crystal-like order can be manipulated by the choice deposition rate substrate temperature during deposition. find rate–temperature superposition (RTS)—the equivalence lowering increasing temperature—can used predict control molecular orientation in ov...

To accommodate the down-scaling electronic industry, the energy storage changes into micro-scale or even nano-scale. Therefore, development of new methods and materials that can provide microwattsis highly needed. We focus on using thin-film solid-state micro-batteries that are basically relied on electrochemical potential difference of metals. Zinc and Copper are used as the electrodes and pap...

Residual stresses of physical vapor deposition (PVD) hard coatings can be measured using X-ray diffraction (XRD) methods under either conventional d-sin2 ψ mode or glancing incident (GIXRD) mode, in which substantial uncertainties exist depending on the applied diffraction parameters. This paper reports systematic research on the effect of the two analytical modes, as well as the anisotropic el...

Nanostructured SnO2 thin films were prepared using Electron Beam-Physical Vapor Deposition (EB-PVD) technique. Then Ag nanoparticles synthesized by laser-pulsed ablation were sprayed on the films. In order to form a homogenous coated of SnO2 on the glass surface, it was thermally treated at 500°C for 1 h. At this stage, the combined layer on the substrate was completely dried for 8 h in the air...

The aim of this review is to survey the state of the art relating to the rolling contact fatigue (RCF) investigation of various overlay coatings and also, to ascertain the influence of design parameters such as the type of deposition process, coating material and thickness on the RCF performance. Rolling contact fatigue is a significant factor in the failure of components in rolling/sliding con...

Abstract Suspension plasma spraying (SPS) and spray-physical vapor deposition (PS-PVD) are the only thermal spray technologies shown to be capable of producing TBCs with columnar microstructures similar electron beam-physical (EB-PVD) process but at higher rates relatively lower costs. The objective this study was achieve fundamental understanding effect different produced by these two processe...

Environmental barrier coatings (EBCs) were developed to reduce the susceptibility of SiC-based composites rapid volatilization and surface recession that occurs in presence water vapor. Extensive research development has been performed on EBCs, their corresponding failure mechanisms under different environmental conditions. However, one key mechanism, solid particle erosion (SPE), not thoroughl...