Showing papers in "Vacuum in 2008"

TL;DR: In this paper, thin films of copper oxide were deposited by thermal evaporation of cuprous oxide (Cu 2 O) powder, and the substrates were either unheated or heated to a temperature of 300-°C.

TL;DR: In this article, the adhesive properties of polypropylene (PP) and polyethylene terephthalate (PET) film surfaces have been investigated by using contact angle measurements.

TL;DR: In this paper, the evacuated silica kernel has a thermal conductivity of about 0.004 Wm −m −1 ǫ K −1 at room temperature, mainly resulting from solid thermal conduction along the tenuous silica backbone.

TL;DR: In this article, a closed-sorption system with sodium hydroxide (NaOH) and water as the working pair is presented, where the storage capacity is limited by the temperature levels of the produced heat and by the solidification of the NaOH lye.

TL;DR: In this paper, the authors performed boronizing on a solid medium of Ekabor powders at 1073, 1148 and 1223 K for 2, 4 and 8h.

TL;DR: In this article, the main characteristics of monolithic silica aerogel and its application in evacuated superinsulating aerosol glazing including the evacuation and assembling process are described.

TL;DR: Konstantinidis et al. as mentioned in this paper used transport-of-ions-in-matter simulations to analyze the non-linear energy dependence of the sputtering yields and showed that the apparently low deposition rate can be explained based on the nonlinear energy dependency.

TL;DR: In this article, the authors investigated the influence of an electrode configuration on ozone synthesis and microdischarge behavior in a dielectric barrier discharge with three different configurations: plane, trench and multipoint.

TL;DR: In this paper, a four-cathode reactive direct current (DC) unbalanced magnetron sputtering system has been used to deposit TiAlN coatings on high-speed steel (HSS) drill bits, silicon and mild steel substrates using a 4-Cathode this paper.

TL;DR: In this article, monitoring data from a terrace construction over more than 3 years is reported, and a similar approach is applied for the prediction of the thermal performance after an installation time of 25 years, the common time used for building design regarding energy performance.

TL;DR: An experimental plasma-chemical reactor equipped with a hybrid gas-water stabilized torch is available at IPP Prague for the innovative and environmentally friendly plasma treatment of waste streams with a view to their sustainable energetic and chemical valorization and to a reduction of the emission of greenhouse gases as mentioned in this paper.

TL;DR: In this article, the microstructure and the phase constitution in the Cu/Al joint were studied by means of metallography, electron probe microanalyser (EPMA) and X-ray diffraction (XRD).

TL;DR: In this paper, the basic concept of vacuum glazing is reviewed and procedures and research undertaken in the development of both high-temperature and lowtemperature sealing of vacuumglazing are outlined.

TL;DR: In this article, the effects of substrate temperature on the structural and optical properties of ZnO films have been investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission spectra, and RT photoluminescence (PL) measurements.

TL;DR: In this paper, a new TiAlCN/VCN coating combining high hardness, low friction coefficient and chemical inertness has been developed for dry machining of "Sticky" (Al-, Ti- and Ni-based) alloys as well as advanced Metal-Matrix-Composite (MMC) materials used in aerospace and automotive industries.

TL;DR: In this article, the results of investigations of some tribological properties of chromium nitride, carbonitride and carbide films, prepared by cathodic arc-evaporation method (CAE), are presented.

TL;DR: In this article, the authors introduce photo-electrochromic devices with a redox electrolyte and an additional dye-sensitised layer of TiO 2, which generates the energy for the colouration of the device by sunlight.

TL;DR: In this article, the structural and gas-sensing properties of ZnO:TiO 2 -based hydrogen sulfide (H 2 S) gas sensor with different mol% of CdO by polymerized complex method were reported.

TL;DR: In this paper, an optimization of the deposition process of n-type Bismuth telluride and p-type Antimony Telluride thin films for thermoelectric applications is reported.

TL;DR: In this article, nanocrystalline powders of pure and La 3+ -doped In 2 O 3 with cubic structure were prepared by a simple hydrothermal decomposition route.

TL;DR: In this article, the main principles, advantages and drawbacks of atmospheric plasmas are reviewed for a better understanding of the capabilities and limitations of the atmospheric plasma processing technology compared with conventional low-pressure plasma processing.

TL;DR: In this paper, a nanostructured Fe(Al)/Al 2 O 3 composite alloy coating was prepared by cold spraying of ball-milled powder, and it was evolved in-situ to FeAl/Al 2O 3 intermetallic composite coating through a post heat treatment.

TL;DR: In this paper, indium tin oxide (ITO) thin films on glass and polycarbonate (PC) substrates were prepared at room temperature (RT) and at different PO2.

TL;DR: In this article, the effects of discharge power and doping concentration on the structural and electrical properties of ZnO films were mainly studied experimentally, and the luminous properties of both the PDP cells were measured and compared with each other.

TL;DR: In this article, the sputtering pressure and target voltage versus nitrogen flow rate curves were established in order to control the structures and properties of chromium nitride coatings, and a good correspondence among the spitching pressure, target voltage evolutions and the phase developments with respect to nitrogen flow rates has been found.

TL;DR: In this article, different types of diamond-like carbon (DLC) films (Ta-C, aC, ta-C:H and a-C :H) were prepared on super hard alloy (WC-Co) substrate using a T-shape filtered arc deposition (T-FAD) system.

TL;DR: In this paper, the chemical composition of the deposited chalcogenide glass was examined using energy dispersive X-ray spectroscopy (EDX) and the results obtained are discussed in terms of the correlated barrier hopping (CBH) model.

TL;DR: In this paper, the conductivity measured at room temperature for CuAl 0.98 Mg 0.02 O 2 film is three orders of magnitude higher than that of undoped CuAlO 2 film and the band gaps of CuAl 1− x Mg x O 2 ( x ǫ = 0, 0.01,0.02 and 0.05) thin films decrease with the increase of doping concentration, which is related to the formation of impurity energy levels with increasing the doping concentration.

TL;DR: In this paper, different methods for measuring gas pressure in vacuum insulation panels are presented. But these methods are not suitable for the measurement of high barrier films used as vacuum tight envelopes for the panels.

TL;DR: In this article, the authors provide insights into the nature of protocrystalline Si:H materials, optimization of cell structures and their light-induced degradation that are helpful in addressing these issues.