Materials Literature
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Dispersed uniform submicron-sized silver spheres were prepared by selective laser heating in the silver-containing precursor solution, which was produced by dissolving the irregular Ag2O in aliphatic amine. By optimizing the process conditions, silver spheres in the range of 578 ± 109 nm were obtained. The smooth surf…
The possibility of the formation of bonding between the two layers of a double-oxide film defect when held in a commercial purity liquid Al alloy was investigated. The defect was modeled experimentally by maintaining two aluminum oxide layers in contact with one another in a commercial purity Al melt at 1023 K (750 °C…
TiO2 materials were prepared from a titanium isopropoxide precursor by sol-gel processing in water media with or without various templates (polyethylenimine or Pluronic P-123). The photocatalytic efficiency of the samples was found to depend strongly on the use of and type of template added. Titania/Pluronic sols resu…
Pulsed Fe2+:ZnS laser continuously tunable in the wavelength range of 3.49 — 4.65 μm, Kozlovskii, Vladimir I, Korostelin, Yurii V, Landman, Aleksandr I, Mislavskii, V V, Podmar'kov, Yu P, Skasyrsky, Yan K, Frolov, M P
The term electroactive polymers (EAP) represents a large class of materials which exhibit an electro-mechanical transduction. We shortly classify dielectric elastomer stack actuators (DESA) in the broad field of electroactive polymers. The scope of this paper relates to our first results on lifetime investigation on D…
The influence of a low Ti addition (∼0·01%) on the hot ductility of Nb containing HSLA steels has been examined. For conventional cooling conditions in which an average cooling rate from the melting point to the test temperature was used, the ductility decreased markedly with the addition of Ti. However, when cooling…
The redistribution of AlB2 and AlB12 reinforcing particles in functionally graded Al–B–Mg composites was investigated as a function of centrifugal casting time, rotational speed, and pouring temperature of the melt. The microstructure was characterized both qualitatively and quantitatively on four different sections a…
Crystalline TiO2 nanodots have been formed on single crystal rutile TiO2(110) surfaces via ion beam sputtering method by utilizing Ar ion beams from electron cyclotron resonance source. Nearly five times enhancement in absorbance of visible light, ∼5 times increase in luminescence, and ∼0.1 eV narrowing of bandgap are…
The characteristics of a modal liquid-crystal focusing device are experimentally investigated in different control regimes. Phase delay distributions in the form of a circular truncated cone with a controlled position of the base centre are obtained. Focusing to a round spot with a controlled position of the focal poi…
A new S = 1 kagomé compound based on vanadium(III) is reported. The structure was refined simultaneously against single-crystal neutron and X-ray diffraction data, as a gaudefroyite-type with a new supercell ( a ′ = 2 a + b, b ′ = − a − 2 b, c ′ = c ) driven by the ordering of columns of isolated triangular BO 3 3− io…
From single crystal to single crystal: A crystalline charge-transfer complex of the title compounds underwent topochemical polymerization through a radical mechanism under UV irradiation or upon heating. This cis-specific solid-state copolymerization of the substituted quinodimethanes required the alternating monomers…
A theoretical model for a modal liquid-crystal focusing device is developed. The solutions to the system of equations are investigated in the approximation of a small modal parameter. The necessary relations between the control harmonic potentials for implementing a phase delay profile in the form of a circular trunca…
Ferroelectret materials can be utilized to set up electroacoustic transducers. The materials offer both, a rather large bandwidth and a high piezoelectric strain constant. Due to its cellular structure, the material is flexible and exhibits an excellent matching to air. Therefore, this polymer is appropriate for many…
Microcantilever based biosensors have attracted much attention as a label-free, real-time and highly sensitive approach to the detection of biomolecules. When specific biomolecular interactions occur between a receptor immobilized on one side of a cantilever and a target analyte in solution, a mechanical bending of th…
We demonstrate plasmonic modes in a vertical nanocavity with an air output window at the top surface and Ag reflectors. The resonances of surface plasmon polaritons are investigated using cathodoluminescence spectroscopy. The resonant modes are determined by comparing experiment and theoretical simulations. The plasmo…
Rigorous diffraction theory is a reliable tool to quantify the absorption enhancement in textured thin film solar cells. We provide a line of arguments that make the insights from such an involved analysis accessible to a broader community by using a scalar approach. We show that the scattering response from a texture…
Abstract New membranes were prepared and evaluated as polymer electrolytes for PEMFCs. Polymers with PSU in the main chain and –C(O)(CF2)3SO3H in the side chain (PSU‐PSA) were synthesized by substitution of PSU‐Li and SFBF, followed by treatment with aqueous potassium hydroxide then sulfuric acid. The proton conductiv…
Pulsed metal inert gas welding of AZ31B magnesium alloy is carried out, and continuous butt joints of high quality are obtained at optimised parameters. The effects of parameters on weld formation and welding stability are studied. The microstructure, mechanical properties and fracture of weld beads with different fil…
The growth and the electrical properties of HfO2/In0.53Ga0.47As interfaces are characterized as a function of exposure to trimethylaluminum (TMA) prior to chemical beam deposition of HfO2 from an alkoxide precursor. It is shown that TMA can act as a surfactant for HfO2 growth for (2×4) but not for the group-III-rich (…
We report a high performance and low-power operated resistive memory. Using stacked covalent-bond-dielectric GeOx on metal-oxide SrTiOx to form the cost-effective Ni/GeOx/SrTiOx/TaN resistive random access memory, ultralow set power of small 1 μW (0.9 μA at 1.2 V), reset power of 13 pW (0.13 nA at 0.1 V), fast 50 ns s…