Showing papers in "Vacuum in 2005"

TL;DR: In this article, nanolayered TiAlN/CrN multilayer films were deposited on silicon substrates from a TiAl target using a reactive DC magnetron sputtering process in Ar+N 2 plasma.

TL;DR: In this article, various copper oxide and copper aluminium oxide (CuAlO 2 ) films were deposited by pulsed magnetron sputtering from loosely packed powder targets, formed from either Cu 2 O and Al 2 O 3 powders, in a rig specifically designed for the purpose, and optical, electrical and structural properties were determined using a range of techniques including spectrophotometry, four-point probe, scanning electron microscopy and X-ray diffraction.

TL;DR: In this article, the I-V characteristics of polypyrrole/p-InP structure, ideality factor and barrier height (BH) values of 1.68 and 0.59 eV, respectively, were obtained from a forward-bias I−V plot.

TL;DR: In this article, the growth kinetics of boride layer on boronized AISI 4140 steel is reported, and an iso-thickness diagram for pre-determined thickness according to treatment time and temperature, were graphed by MATLAB 6.0 software.

TL;DR: In this paper, radiofrequency sputtering of polytetrafluoroethylene (PTFE) was used to obtain super-hydrophobic plasmon polymers with a static contact angle of 146° for water.

TL;DR: In this paper, the authors investigated the properties of Sb 2 Te 3 films in the frequency range 0.4-100 kHz and temperature range 303-373 K. X-ray analysis showed that the as-deposited Sb2Te 3 films are amorphous while the source powder and annealed films showed a polycrystalline nature.

TL;DR: In this paper, the reactive magnetron sputtering method was used to prepare pure and Fe-doped titanium dioxide thin films, which were deposited onto microscope glass slides and polycarbonate plates at different total pressure and Fe doping concentrations.

TL;DR: In this article, dry sliding wear experiments at specific temperatures ranging from 20 to 500 °C were conducted on CrCN coatings deposited onto steel substrates, where the coatings were worn against 100Cr6 bearing steel balls, Si3N4 and Al2O3 balls, using a pin-on-disc sliding configuration at a contact load of 5 N.

TL;DR: In this article, hydrogen release due to He-ion bombardment at energies ranging from 0.8 to 2.0 MeV was studied in situ by RBS and the data were analyzed using the statistical model of molecular recombination, and the H-release crosssection and saturation concentration were found to depend strongly on the electronic stopping power of the He-beam and exhibit quadratic dependence on the incident ion energy.

TL;DR: In this article, the duplex treatment of plasma nitriding and post-oxidation of AISI 1045 plain carbon steel which is used in manufacture of shock absorber rods in automotive industry was carried out at 550°C for 5h in atmosphere having nitrogen and hydrogen with volume ratio of 3 to 1.

TL;DR: In this paper, the surface modification by PEO and hydrothermal treatment decreases the corrosion resistance of the surface of titanium, which was determined by the electrochemical methods in a simulated body fluid (SBF) at a temperature of 37 °C after various times of exposure in SBF.

TL;DR: In this paper, a kinetic study of chromium carbide coating of AISI D2 steel coated by pack method at the temperature of 1223, 1273 and 1323 K for 1-4h was realized.

TL;DR: In this paper, the Modified Cabrera Mott (C-M) model has been used to delineate the complex nature of the oxidation of copper based on the Modified C-M Model.

TL;DR: In this paper, the authors used the ASTM C-633 method to evaluate the strength of Al 2 O 3 and Al O 3 -13 W% TiO 2 on a stainless-steel substrate with and without Ni 5 W% Al as bond coat layer.

TL;DR: In this paper, an installation containing a DC negative corona discharge reactor, a pulse CORONA discharge reactor and a combined electron beam and microwave induced plasma reactor is presented, where SO 2 is removed up to 42% through spontaneous reaction with ammonia without electron beam or microwave irradiation at the temperature below 70°C.

TL;DR: In this article, carbon nanotubes and nanofibres were used to fabricate sensor material for the detection of methane in a Si(0, 0, 1) substrate using acetonitrile and water as electrolyte at an applied d.c. potential ∼20 V.

TL;DR: In this article, a simple model accounting for both surface chemical composition and roughness was applied to evaluate the wettability of various fluorocarbon coatings, from carbon-rich to fluorine-rich materials, carried out within the framework of a search for snow- and ice-repellent materials.

TL;DR: In this paper, a single crystalline SiC film was prepared by the RF-magnetron sputtering technique on P-Si substrates with the target of single crystalized SiC and the as-deposited films were annealed in the temperature range of 700-1000°C under nitrogen ambient.

TL;DR: In this paper, thermal efficiency is considered in connection with welding regimes and seam parameters by applying a statistical approach to establish empirically (by fitting a mathematical model) the type of relationship that is present between performance characteristics and its influencing factors.

TL;DR: Based on the fact that the output power of a solar cell monotonically decreases with its temperature, this article investigated the specific expression of the series resistance and analyzed the relationship characteristics between the power and the temperature, and correspondingly presented the operating temperature condition of the ideal maximal power.

TL;DR: An improved method for three-dimensional reconstruction of the surface topography, which consists in directional acquisition of secondary electrons generated with a known angular distribution, in a four-detector system, which is particularly useful for the reconstruction of relatively smooth objects.

TL;DR: Very low pressure plasma spray (VLPPS under 1mbar) has been developed and used for deposition of copper powder (10−63μm) coating on stainless steel substrate.

TL;DR: In this article, the structural and morphological properties of ZnO thin films were investigated by XRD and SEM measurements, respectively, and the optical properties of the films were studied by photoluminescence spectra using a 325 nm He-Cd laser.

TL;DR: In this paper, the results of numerical calculations and experimental studies of the thickness of modified layers, distribution of implanted materials, microstructure and phase composition inside the layers following pulsed electron beam treatment are presented.

TL;DR: In this article, a large area atmospheric pressure plasma jet (LAAPPJ) composed of two planar electrodes with an area 38 cm2 at a distance of 2.5mm was constructed.

TL;DR: In this article, the root mean square (r.m.s.) microstrain of thin tungsten films was determined by X-ray diffraction and subsequently refined with the Rietveld method.

TL;DR: In this paper, the same authors used the ELV-6 electron accelerator to accelerate the evaporation of metallic silver powders with a particle size of 70-80 nm and showed that the structure of Ag(Ar) powder was shown to differ substantially from Ag(N 2 ) by the presence of small oxide-like species of 10-20 nm on the particle surface.

TL;DR: In this article, the effect of Pd doping, porosity, and thickness on the H2 gas sensing properties of SnO2 films was investigated under various conditions for the investigation of the effect.

TL;DR: The surface roughness of hydrogen silsesquioxane (HSQ) as a negative tone electron beam resist has been studied as a function of exposure dose, developer concentration, and pre-exposure bake temperature as mentioned in this paper.

TL;DR: In this paper, a pervaporation separation of ethylacetate and water mixtures was carried out using polyvinyl alcohol membranes prepared by crosslinking with tartaric acid.