Showing papers in "Vacuum in 2014"
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TL;DR: In this article, electron beam welding of dissimilar Inconel 625 and SS 304L alloys was successfully performed by employing optimized beam welding parameters, the welded joint was characterized using SEM/EDS, XRD and micro-hardness tester.
93 citations
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TL;DR: In this article, the authors showed that the high visible transmittance and infrared reflection property of the AZO/Ag/AZO multilayer film makes it a promising candidate for solar films.
84 citations
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TL;DR: In this article, a solid state reaction method was used to synthesize polycrystalline bulk samples of PrFe1−xMnxO3 (x = 0.0, 0.1, 1.3, 4.5) and X-ray diffraction and Raman spectroscopy were investigated to confirm chemical phase and the orthorhombic pbnm structure.
81 citations
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TL;DR: In this article, a change in the surface roughness is sufficient enough to create super-hydrophobic surfaces of polytetrafluoroethylene (PTFE)/Teflon.
74 citations
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TL;DR: In this paper, the effects of Al content on the microstructure, mechanical, oxidation resistance and tribological properties of Mo-Al-N films were investigated and the results showed that the synthesized Mo-al-n films exhibited the face-centered cubic (fcc) structure with (111)-preferred orientation.
72 citations
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TL;DR: In this paper, severe shot peening with different Almen intensities was performed on commercially pure (CP) titanium (grade 2) and the specimens surfaces were investigated according to Almen intensity (plastic deformation rate).
68 citations
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TL;DR: In this article, Niobium carbide thin films have been deposited on Si(100) substrates by direct current reactive magnetron sputtering using CH4 as a carbon source.
67 citations
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TL;DR: In this article, the morphology, microstructure, and crystalline structure of as-prepared Fe-based metallic glass coatings were analyzed by scanning electron microscopy, transmission electron microscope, and X-ray diffraction.
65 citations
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TL;DR: Based on the concentration distributions of aluminum and calcium along the growth direction, the removal mechanism of such impurities with both high saturated vapor pressures and low segregation coefficients is investigated in this paper, where the results show that the removal of this type of impurities only depends on evaporation during vacuum induction melting process, thus their contents decrease significantly due to the strongly eva-oration under the high temperature and high vacuum conditions.
63 citations
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TL;DR: In this article, a tin-doped indium oxide with moderate resistivity (1.7-2.0 ǫ) was used as an upper electrode screen of a touch panel.
62 citations
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TL;DR: In this article, a Cu 2 SnS 3 film with about 600nm thickness was successfully prepared, for the first time, by one step sol-gel spin coating route on glass substrate.
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TL;DR: In this article, the effect of processing time on corrosion resistance of the coatings was investigated using the potentiodynamic polarization test, and it was found that an optimum of 20min processing time leads to minimum amount of porosity (15.2%) and maximum corrosion resistance.
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TL;DR: In this paper, the authors investigated the erosion properties of the nanostructured Cr/CrN multilayer coatings on titanium Ti6Al4V alloy and found that the applied surface treatment significantly improves the erosion resistance of the titanium alloy.
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TL;DR: Graphene oxide nano-plate was applied to vanadium redox flow battery (VRB) system as the ion exchange membrane to reduce the vanadium permeation and enhance the VRB system performance as mentioned in this paper.
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TL;DR: In this article, a hybrid deposition technique where high power impulse (HiPIMS) and pulsed-DC (PDCMS) magnetron co-sputtering was used for Ti and Si deposition respectively in an Ar+N2 atmosphere.
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TL;DR: In this paper, the real-time stress evolution during the early growth stages of a large class of sputter-deposited metal (Me) films with monolayer sensitivity was studied using a multi-beam optical stress sensor.
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TL;DR: In this article, physical vapour deposition (PVD) was carried out to prepare nano-titania (TiO 2 ) as an intermediate layer on Mg-Zn-Ce alloy and subsequently electrochemical deposition (ED) method was applied to develop nano-fluorine-doped hydroxyapatite (FHA) as an outer layer.
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TL;DR: In this article, a magnetron sputtered polytetrafluoroethylene layer is used to overcoverage a thin polyto-ethylene (PE) overcoat of a fluorocarbon surface.
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TL;DR: In this article, the effects of Si content on the microstructure, mechanical and tribological properties of Ti-Mo-Si-N films were investigated and the results showed that the face-centered cubic (fcc) interstitial solid solution was formed by dissolution of Si into TiMo-N lattice with the Si content in the range of 3.1-5.0% Si.
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TL;DR: In this article, a post sulfurization process was applied for the sputtered films and sulfurization temperatures ranging from 460°C to 580°C were utilized, and the crystallinity were greatly improved and films composed of densely packed CZTS grains at the size of several hundred nanometers can be obtained at sulfurization temperature higher than 520°C.
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TL;DR: In this article, the mass flow rate of rarefied gas through a long rectangular channel of variable cross-section aspect ratio is calculated based on the results obtained previously on the basis of the kinetic equation and it requires very modest computational efforts.
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TL;DR: In this paper, the ozone synthesis in a dielectric barrier discharge reactor powered by a high voltage positive pulse power supply with a short duration (∼400ns) was investigated.
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TL;DR: In this article, a new approach for the generation of wide-format directed fluxes of low-temperature plasma outside the interelectrode space and a corresponding gas discharge device to be used for the formation of micro- and nano-sized diffraction patterns on wide format wafers have been proposed based on the analysis results of gas discharge devices that generate the ion-electron beams under highvoltage gas discharge.
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TL;DR: In this article, the NiO films were sputtered by radio frequency (RF) magnetron sputtering at different oxygen partial pressures, and the resulting NiO film was analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and ultraviolet-visible spectrophotometer (UV).
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TL;DR: In this article, the effects of ultrasonic vibration on microstructure and growth characteristics of micro-arc oxidation (MAO) coatings were investigated, and the results showed that the ultrasonic action obviously promoted the formation of α-Al 2 O 3 phase, reduced the number of large discharge pores and promoted the increase of the thickness, uniformity and hardness of the coatings.
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TL;DR: In this article, the authors used X-ray diffraction (XRD) and Fourier transform infrared (FTIR) measurements to characterize the SnS film and determined the conductivity type of the sample using the Hall effect measurement.
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TL;DR: In order to further enhance the tribological properties of TiN coatings used on mechanical parts, W ion implantation with Metal Vapor Vacuum Arc (MEVVA) source was carried out on PVD TiN coating at the implantation dose as high as 9.
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TL;DR: In this paper, a single phase cubic structure for the monolithically grown nitride coatings using Al 0.7 Cr 0.3, 0.75 Cr 0, and 0.25 targets was obtained.
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TL;DR: In this paper, the effects of thickness on the electrical, optical, structural, and morphological properties of Al and Ga co-doped ZnO films (AGZO) grown by linear facing target sputtering (LFTS) for use as a transparent contact layer (TCL) in GaN-light emitting diodes (LEDs) were investigated.
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TL;DR: In this article, the effects of carbon nanotubes (CNTs) by electrophoretic deposition (EPD) on microstructure, mechanical and thermal properties of carbon/carbon composites were investigated.