Materials Literature
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The effect of nanoclay content on the properties of glass fibre reinforced, waterborne epoxy laminates is investigated. Fourteen ply nanocomposite laminates containing 0, 0·1, 0·2, 0·5, 1 and 2 wt-% cloisite Na + nanoclay are fabricated by a hot press. The interlaminar shear strength, flexural strength and flexural st…
Abstract ZnO nanoparticles (NPs), prepared by an improved alco-sol method at relatively low temperature using oleic acid (OA) as a stabilizing agent, were added to a liquid crystal matrix of 4′-pentyl-4-biphenylcarbonitrile (5CB). Addition of ZnO NPs not only decreased the threshold voltage but also had a dramatic eff…
The atomic structure and elastic properties of Y-silicon nanowire junctions of fork- and bough-types were theoretically studied and effective Young modulus were calculated using the Tersoff interatomic potential. In the final stages of bending, new bonds between different parts of the Y-shaped wires are formed. It was…
The land-sourced pollutants including industry wastewater and sewage bring to the coast zone sea pollution. The pollutants in the seawater can aggravate or reduce the corrosion of the steel. Among them the ammonia nitrogen is an important factor. In this paper the effect of the ammonia nitrogen on corrosion in 3.5% Na…
We demonstrate that the temperature-dependent phase behaviors of parallel and perpendicular cylinder-forming block copolymers are governed by domain-domain segregation forces inherently present in block copolymer material itself. With increasing temperature, a parallel cylinder-forming block copolymer experienced a pa…
Abstract In this study, Ce‐rich coating is investigated as corrosion inhibitor of carbon fibers reinforcement aluminum matrix (Cf/Al) composites. The coatings are obtained by immersion in aqueous solution containing Ce(NO 3 ) 3 onto composite surface, whereas the Ce‐rich coating process produces a coating with highly…
Nd 25 Fe 40 Co 20 Al 10 B 5 was prepared by high-energy milling and melt-spinning techniques. The as-milled and as-quenched samples were subsequently annealed in a temperature range from 400to1100°C for 20min. For the annealed samples, x-ray diffraction combined with high-resolution transmission microscopy show the pr…
The formation of crystallographically oriented and current line oriented pores in n-type InP is reviewed and compared to other semiconductors in the light of some new results. A model for the formation of crystallographically oriented pores is presented that reproduced salient features of this pore type rather well. I…
Nanocomposites were prepared by the inclusion of layered silicates into the aramid matrix via a solution intercalation technique. Polyamide was synthesized by reacting 4,4'-oxydianiline with isophthaloyl chloride and then end-capping with carbonyl chloride end groups using excess diacid chloride. The compatibility bet…
High efficiency and valuable energy distributed generation could be achieved with the coupling of solid oxide fuel cells and biomass processing technologies. This coupling would take advantage of the high operating temperature of the fuel cell and the efficient recovery of its waste high temperature irreversible heat…
Inductively coupled SF 6 /SiCl 4 plasmas interacting with a bulk silicon substrate and a SiO 2 -coated substrate have been investigated. Mass spectrometry and optical emission spectroscopy diagnostics were used to characterize the neutral population in the diffusion chamber. SiF 4 molecules were detected as the domina…
Development efforts in solid oxide fuel cells (SOFCs) for power generation have expanded significantly in the past twenty years. At present, SOFC is being studied/developed in at least thirty countries worldwide. The widening interest in this technology arises from the continuing need to develop cleaner and more effic…
In this work, we suppressed the leakage current of chemical-vapor-deposited SiO 2 films using tetraethylorthosilicate (TEOS-SiO 2 ) by high temperature annealing. As a result of annealing, leakage currents of TEOS-SiO 2 were suppressed to the level of thermally grown SiO 2 . Meanwhile, the relationship of electrical a…
Based on the modified Ginzburg–Landau–Devonshire phenomenological theory, a ferroelectric bilayer film with the transition layer within each constituent film and an interfacial coupling between two materials has been studied. The dielectric susceptibility of a bilayer film composed of two equally thick ferroelectric c…
The deposition and subsequent oxidation of metallic Al and Hf on graphite has been studied as a route to the formation of a high-κ dielectric on graphene. We employ in-situ x-ray photoelectron spectroscopy (XPS), ex-situ atomic force microscopy (AFM) and Raman spectroscopy to study reactions with the substrate and die…
The electrical resistivity and Hall coefficient of p-type TlGaTe(2) crystals were measured in the temperature range of 110-320 K. The electrical resistivity, charge carrier density and Hall mobility data for the crystals have been analyzed by means of existing theories and models to determine the extrinsic energy leve…
The responses of quartz crystal microbalance (QCM) sensors coated by fullerene and fullerene-aluminum films to ethanol and water vapors are investigated. The possibility of controlling the adsorption properties of such films by inserting the aluminum and by ultraviolet irradiation that changes the film morphology in a…
Researched within the frequency range 10 -1 -10 6 Hz were dielectric properties of pure 6CHBT liquid crystals and 6CHBT ones with the impurity of Fe 3 O 4 nanoparticles that have the mean diameter 5 nm and weight concentration 10 -4 %. The study was performed without and under the influence of direct magnetic field wi…
We report a theoretical study of the equilibrium spin current (ESC) flowing in a ferromagnet/ferromagnet (FM/FM) graphene junction with noncollinear magnetizations, in which the FM correlation in graphene is induced by depositing an FM insulator on it. Using the scattering matrix method, we derived an analytical expre…
We report here the growth of Pt electrodes presenting at the same time an ultraflat surface (rms=0.3 nm) and a perfect (111) monocrystalline orientation. These electrodes were grown by pulsed laser deposition on yttrium-stabilized zirconia (111), using a few nanometers thick titanium adhesion layer. Such high crystall…