Showing papers in "Journal of Alloys and Compounds in 2010"

TL;DR: Microwave sintering has emerged as a new method for sinterding a variety of materials that has shown significant advantages against conventional sinterging procedures as mentioned in this paper. But microwave sinterings are not suitable for all materials.

TL;DR: In this article, a process of wet chemical purification, oxidation and functionalization of multiwall carbon nanotubes (MWCNTs) is investigated to determine the structural and chemical changes in atomic bonding caused by oxidation in an aqueous solution of concentrated (68%) HNO3 at 120 C.

TL;DR: In this paper, the fundamental understanding of the physical, chemical and structural properties of light weight hydride materials, e.g. Alanates, Borohydrides, Amide Borhodrides and Amide-Imide system, Amineborane and Alane for hydrogen storage has been presented.

TL;DR: In this paper, X-ray diffraction, Field emission scanning electron microscope (FESEM), Fourier transform infrared spectrum (FTIR), optical absorption and wettability test were used to characterize the copper oxide multilayer nanosheets thin films.

TL;DR: In this paper, an effective way to apply a vapor deposited chromium coating onto diamond particles was used to overcome the interface problem, and the results showed that the densification, interfacial bonding and thermal conductivity of coated composites were evidently enhanced compared to that of uncoated composites.

TL;DR: In this paper, ZnO nanoparticles were synthesized at different pH values by the sol-gel method and centrifuged at 3000rpm for 30min, and the maximum crystalstallite size (25.36nm) was obtained at pH 9.98nm.

TL;DR: In this paper, the effect of welding speed on interface morphology, microstructure, and joint strength was investigated for lap joints of 1060 aluminum alloy and commercially pure copper was produced by friction stir welding, and the results revealed that in the aluminum close to the Al/Cu interface, a dark area was formed.

TL;DR: In this paper, the authors studied how temperature, from the ambient temperature to 900°C, affects the mechanical properties of Al 0.5 CoCrCuFeNi alloys in different wrought states.

TL;DR: In this paper, high-level crystalline CaMoO4, SrMoO 4, CaWO 4 and SrWO4 nanoparticles were synthesized by co-precipitation of mixtures of Ca(NO 3 ) 2 4H 2 O or Sr(NO3 ) 2, and Na 2 MoO 4 2H 2O or Na 2 WO 4 1H2O dissolved in ethylene glycol at room temperature (30°C).

TL;DR: AlxCoCrFeNi alloys with multiprincipal elements (x values in a molar ratio of 1, 1.5, 2, 2.5 and 3) were prepared by using an arc-melting plus casting method as discussed by the authors.

TL;DR: In this paper, a new and simple method to directly synthesize stable and crystalline pure phase CeO 2 nanoparticles has been developed using cationic surfactant (cetyltrimethylammonium bromide, CTAB) and cerium chloride (CeCl 3 ) at room temperature.

TL;DR: In this paper, the authors used spinach extract, ipomoea leaf extract and their mixed extracts as the natural dyes for a dye-sensitized solar cell (DSSC).

TL;DR: In this paper, a new manufacturing process for Al-SiC P composites was developed by using bulk aluminum sheets and micron sized SiC particles as starting materials, and the results proved that by increasing ARB cycles the tensile strength of the produced composites increases, but their ductility at first decreases and then increases.

TL;DR: In this paper, the microwave absorption properties of the epoxy resin composite containing 30.vol.% FeCo nanoplates were investigated and it was shown that the composite exhibits excellent microwave absorption property.

TL;DR: In this article, the influence of the deposition temperature varied from 55°C to 85°C in a step of 5°C on the crystallographic structure, morphology as well as optical and electrical properties was investigated in detail.

TL;DR: In this article, a multilayered Al/Ni composite with homogeneously distributed fragmented nickel layers in aluminum matrix was produced by accumulative roll bonding (ARB) process using Al 1060 and commercial Ni foils.

TL;DR: In this paper, a single-phase Bil(1-x)Eu(x)FeO(3) (0 Pn2(1)alpha) (occurs at x = 0.2).

TL;DR: In this article, the equiatomic multiprincipal CoCrFeNiCuAl high-entropy alloy was prepared using a vacuum arc melt casting method and the as-cast alloy was subsequently annealed at 1000°C for 2h and the annealing effects on the structure and properties evolution were investigated.

TL;DR: In this article, the effects of quaternary elements on the γ′ solvus temperature of Co-Al-W based alloys with fcc/L12 two-phase microstructures have been investigated both experimentally and theoretically.

TL;DR: In this article, fine particles of Al-doped lithium ferrite of general formula Li0.5AlxFe2.5−xO4 (0.0 ≤ x ≤ 0.4, in step of 0.1) were synthesized by the citrate gel auto combustion method and characterized using XRD, dielectric and impedance spectroscopy.

TL;DR: In this article, the effect of concentration of embedded Ag nanoparticles on conductivity and dielectric relaxation behavior of polyvinyl alcohol-silver (PVA-Ag) nanocomposite films has been studied.

TL;DR: In this article, an as-cast ingots were forged at 420°C and then extruded at 370°C with the ratio of 16 at a constant ram speed of 15mm/s.

TL;DR: In this paper, the authors examined the properties of heat treated matrix alloy and composites and compared them with the T6 heat treatment regime, and found that wear resistance and coefficient of friction were better at the SiC particulate composites than at the Al2O3 composite, while the addition of graphite particles improved tribological properties further.

TL;DR: In this paper, the ground state properties of W-C binary compounds (h-WC, c-WCs, α-W 2 C, β-WCS, γ-WC S, ǫ -WC S) are studied by using first-principles calculations.

TL;DR: In this paper, a tri-critical point with critical exponents (β = 0.26−±-0.01, γ = 1.06−±−0.02) at the tricritical point was demonstrated.

TL;DR: In this paper, a single phase of ZnO microring with outer diameter ranging from 2.2μm to 1.72μm and inner diameters ranging from 125nm to 470nm was obtained.

TL;DR: The crystalline Li-Si phases: LiSi, Li12Si7, Li7Si3, Li13Si4, Li15Si4 as mentioned in this paper, Li21Si5, and Li22Si5 are studied using density functional theory.

TL;DR: In this paper, the effect of film thickness (thereby microstructural changes) on their structural, morphological, optical, and electrochromic properties was investigated and the mass change with potential and cyclic voltammogram was recorded in the range from +0.3 to −0.2 eV.

TL;DR: In this article, the microstructures and compositions of the composites were analyzed, the hardness and tensile properties of intermetallics were measured, and a defect-free composites with Al3Ni and Al-3Ni2 were successfully produced by FSP and heat treatment.

TL;DR: In this article, the synthesis of SnO2 nanoparticles using thermal decomposition and characterization of their physicochemical characterization was reported. But the authors did not specify the precursors.