Showing papers in "Journal of Alloys and Compounds in 2011"

TL;DR: In this article, a refractory alloy, Ta20Nb20Hf20Zr20Ti20, was produced by vacuum arc-melting and the as-solidified alloy had a dendritic structure, which was not affected by hot isostatic pressing.

TL;DR: In this article, the results of the characterization by XRD, electron backscatter diffraction and scanning electron microscopy/energy dispersive spectroscopy techniques are presented for the CZTS phase.

TL;DR: In this paper, the authors reported the preparation of TiO2-g-C3N4 composite materials with varying the wt.% of g-C 3N4, the characterization of these materials by various techniques and photocatalytic hydrogen production under visible light irradiation in the presence of methanol.

TL;DR: In this article, the authors present a critical review on the abatement of organic pollutants, dyes and phenolic compounds in particular, using photocatalytic reaction by titanium dioxide (TiO 2 ).

TL;DR: In this article, the electrical and magnetic properties of as-cast, homogenized, and deformed Al x CoCrFeNi (C- x, H- x, and D- x ) alloys at various temperatures from 4.2 to 300 K were investigated.

TL;DR: In this paper, powder X-ray diffraction (PXRD) analysis, scanning electron microscopy (SEM), Transmission electron microscope (TEM), Fourier transformed infrared (FTIR) spectroscopy, photoluminescence (PL) and Electron Paramagnetic Resonance (EPR) measurements were used for characterization.

TL;DR: In this article, X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectrum, scanning electron microscopy (SEM), wettability test and optical absorption studies were used to characterize the structural, morphological and optical properties of Fe2O3 thin films.

TL;DR: In this article, a review is devoted to new rare earth-Mg-Ni-based (RmGNi-Ni)-based hydrogen storage alloys that have been developed over the last decade as the most promising next generation negative electrode materials for high energy and high power Ni/MH batteries.

TL;DR: In this article, the effects of tempering temperature and time on the microstructure, mechanical and corrosion properties of AISI420 have been studied and the experimental results showed that the austeitizing temperature significantly affects mechanical properties.

TL;DR: In this paper, the microstructure, texture, ductility, and stretch formability of rolled Mg-2%Gd-1%Zn and Mg -3% Gd- 1% Zn sheets were investigated.

TL;DR: In this paper, the microstructures and mechanical properties of LSF Inconel 718 samples were investigated and it was shown that the as-deposited microstructure of SDRS sample is composed of columnar dendrites which grow epitaxially along the deposition direction.

TL;DR: In this paper, the ground state properties of chromium carbides (h-CrC, c-crC, Cr 3 C, Cr C 2, Cr 7 C 3, and Cr 23 C 6 ) are calculated by means of the first-principles pseudopotential method using the CASTEP code.

TL;DR: In this article, a co-precipitation approach with β-cyclodextrin was used to synthesize Y2(MoO4)3:Dy3+ phosphors, and the energy transfer mechanism between Dy3+ ions was studied based on Huang's theory, I-H and Van Uitert's models.

TL;DR: In this paper, a quick and facile microwave assisted reaction is used to synthesize ZnO-reduced graphene oxide (RGO) hybrid composites by reducing graphite oxide dispersion with zinc nitrate using a microwave synthesis system.

TL;DR: Graphene-ZnO nanocomposite was successfully synthesized via microwave assisted reduction of zinc ions in aqueous solution with graphite oxide dispersion using a microwave synthesis system as discussed by the authors.

TL;DR: In this paper, the microstructures of fusion welding and brazing zones were analyzed in details by transmission electron microscope (TEM) and it was found that fusion welding zone consist of α-Al grains and ternary near-eutectic structure with α -Al, Si and Mg 2 Si Interfacial reaction layers of brazeling joint were composed of α -Ti, nanosize granular Ti 7 Al 5 Si 12 and serration-shaped TiAl 3

TL;DR: In this paper, the reduction temperature plays an important role in the microstructure and electromagnetic characteristics of the resulting products, and the dependence of reduction temperature on their morphology, micro-structure, and microwave electromagnetic and absorbing characteristics were systematically studied.

TL;DR: In this article, powder X-ray diffraction was used to investigate the adsorption of water and CO 2 on MgO surface and confirm the formation of Mg-O phase.

TL;DR: In this article, multi-walled carbon nanotubes (MWCNTs) were modified with chitosan, and a homogenous nanocomposite was obtained with scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and thermal gravimetric analysis (TGA).

TL;DR: Aluminum hydride (AlH 3 ) and its associated compounds make up a fascinating class of materials that have motivated considerable scientific and technological research over the past 50 years as discussed by the authors.

TL;DR: In this paper, complex impedance analysis has suggested the presence of mostly bulk resistive (grain) contributions in the polycrystalline ceramic samples of Pb 1− x Sm x (Zr 0.55 Ti 0.45, 0.03, 0.06 and 0.09) were prepared by solid-state reaction technique at high temperature.

TL;DR: In this article, the formation of single phase structure of all samples was further supported by X-ray diffraction (XRD), Transmission electron microscopy (TEM), Energy dispersive X-Ray analysis (EDAX), UV-Visible absorption spectroscopy and Fourier transform infrared spectroscope (FTIR).

TL;DR: The NiCo2O4/ITO films are used as electrodes for supercapacitor applications, and electrochemical properties of the NiCo 2O4 nanostructures are examined by cyclic voltammetry and charge-discharge experiments.

TL;DR: In this paper, a core/shell nanocomposite consisting of Fe3O4/polypyrrole (PPy) core with the mean diameter of 100nm and adjacent PPy shell with a thickness of about 70nm was investigated.

TL;DR: In this article, the microstructural change and mechanical properties of laser welded dissimilar DP600/DP980 steel joints were evaluated, and the welded joints exhibited a distinctive unsymmetrical hardness profile, yield-point-like phenomenon, and single-stage work hardening characteristic, with yield strength and work-hardening rate lying in between those of DP600 and DP980 base metals, and ultimate tensile strength equivalent to that of the DP600 base metal.

TL;DR: In this paper, a new composite photocatalyst Ag/AgCl/ZnO was fabricated by a two-step synthesis method under the hydrothermal condition, which was characterized by XRD, TG-DSC, SEM, TEM, DRS and XPS.

TL;DR: The phase confirmation and structural properties of the sample was elucidated by X-ray diffraction (XRD) method as discussed by the authors, which revealed that an increase in reaction temperature, the shape was drastically changed from one dimensional (1D) to two dimensional (2D) layered structures.

TL;DR: In this article, a simple method to directly synthesize stable and crystalline pure phase La(OH) 3 nanorods, with a diameter of around 15nm and lengths in the range of 120-200nm, was developed using cationic surfactant (cetyltrimethylammonium bromide).

TL;DR: In this article, a Co 3 O 4 /graphene nanocomposite material was prepared by an in situ solution-based method under reflux conditions, and the prepared composite material exhibited an initial reversible lithium storage capacity of 722mg −1 in lithium-ion cells and a specific supercapacitance of 478f g − 1 in 2m KOH electrolyte for super-capacitors.

TL;DR: In this article, the effects of coconut shell particle content on the mechanical properties of the composites were investigated, and it was shown that the value of tensile modulus and tensile strength values increases with the increase of coconuts content, while the impact strength slightly decreased, compared to pure epoxy resin.