Materials Literature
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coatings and pellets were prepared by co-sputtering and glycine-nitrate process, respectively, to compare their structural and electrical properties. Both the films and ceramics present the perovskite structure. Structural, morphological, and electrical observations indicate a complex effect of ZnO addition in BZY cer…
The thermoelectric properties of a nonstoichiometric titanium oxide (TiO1.1) are investigated in terms of materials for high-temperature thermoelectric conversion. The electrical conductivity, σ, of TiO1.1 increases to 9000 S/m at 1073 K, is showing semiconducting behavior. The Seebeck coefficient, α, of TiO1.1 shows…
The morphological and mechanical attributes of triblock copolymer solutions composed of miscible, midblock-selective solvents are investigated by small-angle scattering and dynamic rheology. Variation in cosolvent composition at constant copolymer concentration has little effect on copolymer morphology, but promotes l…
In an attempt to develop novel coordination networks of SMMs, a Cu(II) picolinate complex has been used to coordinate S(T) = 9 tetranuclear Mn-based SMMs resulting in an intriguing 2D framework exhibiting a magnet-like behavior at low temperature.
The initiation of freckles by thermosolutal convection during the directional solidification of Pb–Sn alloys was studied numerically at the microstructural level. The model predicts the detailed dendritic structures, microsegregation and interdendritic convection in three dimensions. The onset and sustained growth of…
We carried out first-principles calculations to explore the oxidative longitudinal unzipping of single-walled carbon nanotubes (SWCNTs) of different diameters and chiralities. We found that the initial attack leading to nanotube unzipping prefers to occur in the middle region for armchair tubes, and at the tube ends f…
Nano-sized Zn(OH)2 was synthesized by the co-precipitation method. Further, the structure and properties were tested with FTIR, UV-visible spectroscopy, XRD and TGA as analytical tools. The structural morphology and size of the Zn(OH)2 synthesized by the co-precipitation method were determined by using FESEM and HRTEM…
A new type of Austempered Ductile Iron (ADI) containing free carbides in its microstructure, called Carbidic ADI (CADI), has been purposely designed for applications requiring high levels of abrasion resistance, but still keeping impact toughness. Nevertheless, wear resistance is strongly dependent on the tribosystem,…
The ordered honeycomb films of dioctadecyldimethylammonium (DODMA+)-encapsulated sandwich-type [(Mn(H2O)3)2(WO2)2(BiW9O33)2]10− ({Mn2Bi2W20}10−) are used as templates to directionally electrodeposit gold nanoparticles into their macropores. Consequently, the prepared hierarchical Au-filled films present a strong surfa…
Protonolysis of indium(I) reagents using an [18]crown-6 poly-ether pre-treated with trifluoromethanesulfonic acid (HOTf) provides an efficient route to the known salt [In([18]crown-6)][OTf] in excellent yield. The analogous reaction employing trifluoroacetic acid (HTFA) allows for the isolation of [In([18]crown-6)][TF…
Recent research in plasma chemical vapor deposition (CVD) for single-walled carbon nanotube (SWNT) growth has achieved low-temperature synthesis, individually freestanding formation, and structure control of diameter, chirality, and length. Detailed growth kinetics of SWNTs are revealed using a combination of techniqu…
Lead(II)-texaphyrins and the first discrete binuclear μ-oxo bismuth(III)-texaphyrin are reported. The latter was characterized via single crystal X-ray diffraction analysis. Cell proliferation assays using the A2780 ovarian cancer cell line were used to determine the cytotoxicity of the complexes.
We present new analytic results relating to the nonstationary Stefan-type problems for the unidirectional solidification of binary solutions with a mushy layer under conditions of nonturbulent and turbulent heat and mass transfer in the liquid phase. Explicit analytical solutions (thickness of mushy layer and growth r…
Recently, sustainable materials have attracted attention because of the need to alleviate environmental problems. Bamboo, in particular, has attracted attention as a sustainable material because it has the fastest natural growth rate among various natural materials. A self-bonding fiberboard using high quality bamboo…
The electrochemical synthesis of three-dimensional (3D) polyaniline (PAN) network structure on 3-aminobenzenesulfonic acid (ABSA) functionalized glassy carbon electrode (GCE) and its electro-catalytic oxidation towards ascorbic acid (AA) had been studied. ABSA was first covalently grafted on GCE surface via the direct…
Hydrogen can be produced over Er(2)O(3) in methane oxidation (oxygen/methane = 26). The reactivity of lattice oxygen in the catalyst plays a main role in the conversion of surface hydroxyl species to hydrogen or water. Adding a rare earth element into a catalyst can reduce the reactivity of lattice oxygen, resulting i…
Article Bubble-electrospinning for Fabrication of Nanofibers with Diameter of about 20nm was published on December 1, 2010 in the journal International Journal of Nonlinear Sciences and Numerical Simulation (volume 11, issue Supplement).
This work entails an investigation of the Aerosol Jet® Printing (AJP) method for depositing dense and porous layers necessary for the fabrication of solid oxide fuel cells (SOFCs). Ink preparation, method of printing, and the impact of various printing and processing parameters on the microstructure of layers will be…
We report the linear increase in the glass transition temperature, Tg, with nanofiller weight content. ZnO quantum dots dispersed by melt-blending in a poly(methyl methacrylate) host were characterized by differential scanning calorimetry and dynamic mechanical analysis showing that the Tg of the system is described b…
1,1,3-Triarylpent-4-en-1-yn-3-ols, efficiently obtained in two steps from 1,1,3-triarylprop-2-yn-1-ols by a Meyer-Schuster rearrangement and subsequent addition of lithium trimethylsilylacetylide, react with either a 1- or 2- naphthol to afford photochromic 1,1-diarylvinyl substituted naphtho[1,2-b]- or naphtho[2,1-b]…