Showing papers in "Vacuum in 2015"

TL;DR: In this paper, high-temperature properties of boron nitride platelets were systematically evaluated through TGA in combination with differential scanning calorimetry (DSC) X-Ray Diffraction (XRD) studies confirmed the hexagonal graphitic-like structure of the material, while Fourier-Transform Infrared Spectroscopy (FT-IR) indicated the active vibration modes related to the B-N bond.

TL;DR: Al 2 O 3 thin films were grown on highly-doped p-Si (100) macro-and mesoporous structures by atomic layer deposition (ALD) using trimethylaluminum (TMA) and water H 2 O as precursors at 300°C as discussed by the authors.

TL;DR: In this article, the mass attenuation coefficient for some polymers with potential applications in dosimetry, and medical physics has been calculated using Monte Carlo simulation code, MCNP-4C at different gamma ray energies, 59.5, 279.1, 511, 661.6, 662, 1115.5 and 1332.5.

TL;DR: In this article, a nanostructure-based MTM perfect absorber has been designed and simulated, and nearly perfect dual-band absorptions have been obtained with 99.99% and 99.90% absorption at 543.75 THz and 663.75THz, respectively.

TL;DR: In this paper, the physical properties of specific oxides in their nano-scaled configuration were reported. And the properties of these oxides were validated by the synthesis of high crystalline stoichiometric of rare earth nanostructures by the local gas feeding beam pulsed laser deposition.

TL;DR: In this paper, a facile approach to synthesis of highly fluffy and wrinkled reduced graphene oxide by simple freeze-drying and microwaveexpanding method in vacuum is reported, which exhibits an improved electrochemical performance with high specific capacitance of 246 Fg −1 at scan rate 5mV −1 and good cycle stability for application in supercapacitors.

TL;DR: In this article, the effects of nitrocarburizing pretreatment and PVD deposition temperature on microstructures, mechanical and tribological properties of the coatings were investigated, and the results showed that the AlCrN coating consists of an inner CrN adhesion layer with columnar growth and an outmost CrN work layer with planar growth.

TL;DR: In this paper, the influence of oxygen concentration upon properties of NiOx thin films and their corresponding ECDs was focused on and studied through grazing incidence X-ray diffraction (GIXRD), scanning electron microscopy (SEM), Xray photoelectron spectroscopy (XPS), and ultraviolet-visible spectrometry.

TL;DR: In this paper, a Boltzmann equation solver has been used to calculate the electron energy distribution function and the reduced electron mobility in inductively coupled plasma (ICP) ReF.

TL;DR: In this article, the tritium loop system has been designed to provide the stabilized flow rate of trite gas into the KATRIN trite source with a throughput of 40g/day and a trite purity of 95% in order to determine the effective mass of the electron antineutrino.

TL;DR: In this article, high-power impulse magnetron sputtering with a pulsed reactive gas (oxygen) flow control was used for high-rate reactive depositions of densified, highly optically transparent, stoichiometric ZrO2 films onto floating substrates.

TL;DR: In this article, the role of oxygen admixture on the deposition rate and properties of formed nanoparticles was evaluated and it was found that oxidized nanoparticles are deposited when oxygen is present in the working gas mixture.

TL;DR: In this article, the results of the deposition of chromium nitride coatings on HS6-5-2 steel substrates on the front and reverse side of the substrates with respect to the cathode by cathodic arc evaporation were analyzed.

TL;DR: A kind of flexible carbon nanotubes (CNTs) paper was investigated in this article, which showed good electrical conductivity, electrochemical and electromagnetic interference (EMI) shielding properties.

TL;DR: In this article, the microstructures and hardness of Vanadis 6 subjected to sub-zero treatment with a soaking time of 4h and at a temperature of −196°C have been examined with reference to the same material after conventional heat treatment.

TL;DR: In this article, a unique method for the formation of composite polymer-containing coatings at the surface of magnesium alloy MA8 has been suggested, which can be attributed to the morphology and insulating properties of surface layers and the solid lubrication effect of SPTFE particles.

TL;DR: In this article, the authors present results of testing electric properties (resistance, capacity and phase angle in an equivalent parallel circuit) of ferromagnetic alloy-dielectric nanocomposites (FeCoZr)x(PZT) produced by ion-beam sputtering in vacuum conditions.

TL;DR: In this paper, the binding energies of Sn 3d5/2 and O 1s for all samples showed the Sn4+ and O-Sn4+ bonding state from SnO2.

TL;DR: In this article, the fabrication of a nano-hydroxyapatite (HA) film on an AZ31 magnesium alloy via radio frequency (RF) magnetron sputtering was reported.

TL;DR: In this paper, the authors reported the results of experimental and theoretical investigations into the development of a new low-temperature composite edge seal and a prototype triple vacuum glazing of dimensions 300 mm x 300 mm was fabricated with measured vacuum pressure of 4.8x10-2 Pa.

TL;DR: WO3 nanotubes are fabricated by a facile solvothermal method using WCl6 as the tungsten source in this paper, and the results show the triclinic-structure WO3 sensors with diameters of about 700nm are obtained.

TL;DR: Based on the p-NiO/n-ZnO nanowire (NW) heterojunction structure, a high-performance ultraviolet (UV) sensor has been achieved in this article.

TL;DR: In this paper, a baseline model and an advanced model of CdTe solar cells with selected semiconductor properties fit to the performance parameters of the champion CdS solar cells were developed.

TL;DR: In this article, the authors investigated the ablation behavior and mechanism of carbon/carbon composites modified by hafnium carbide (HfC) and silicon carbide(SiC), and found that linear ablation rate and mass ablation increased with ablation time prolonging.

TL;DR: In this article, the effect of annealing temperature and duration on the growth and properties of Cu 2 SnS 3 films, deposited by co-evaporation of elemental Cu, Sn and S onto soda-lime glass substrates held at 350°C, was investigated.

TL;DR: The Bi 2 WO 6 /graphene oxide (BWO/GO) nanoflake hybrids were prepared by cetyltrimethylammonium bromide (CTAB)-assisted hydrothermal method.

TL;DR: In this paper, XRD, Raman and UV-vis absorption data were used to determine the properties of the obtained films and the dependence of these properties on annealing temperature and deposition angle was analyzed.

TL;DR: In this paper, a novel vacuum tube window technology is introduced, and its thermal performance efficiency is both experimentally and numerically investigated using a commercial computational fluid dynamics software ANSYS FLUENT.

TL;DR: In this paper, the surface characterization of reduced graphene oxide (rGO) obtained through reduction of graphite oxide was performed using a green method (based on UV irradiation under N2) with low environmental impact.