Materials Literature
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Abstract This letter focuses on the synthesis of multi-walled carbon nanotubes (MWNTs) and MWNTs/ZnO nanocomposites using absorbent cotton. The MWNTs have been synthesized by a rapid heating of absorbent cotton at different temperature (400°C, 550°C, 600°C). The MWNTs/ZnO nanocomposites have been synthesized by heatin…
Durable non-fluorine hydrophobic cotton surfaces were obtained by treating woven cotton fabrics using combinations of silica nanoparticles and multifunctional silanes. Both the hydrophobicity and durability of treated cotton surfaces were controlled by selectively adjusting the alkyl chain length of silane hydrophobes…
Competitive adsorption of two-component solutions containing fibronectin (Fn) and albumin (Ab) on hydroxyapatite (HAp) nanocrystals was analyzed in situ using the quartz crystal microbalance with dissipation (QCM-D) technique. Adsorption of the one-component protein (Fn or Ab) and the two-component proteins adjusted t…
Organic corrosion inhibitors are widely used to control the corrosion of different metals in various corrosive solutions. The inhibition performance of Basic yellow 28 (BY28) dye for mild steel corrosion was investigated in 0.1 M HCl solution and in a solution of 0.1 M HCl and 1% NaCl. Two electrochemical methods incl…
The crystal structures of natural huemulite from the West Sunday mine, Utah, USA, and synthetic huemulite, Na4Mg(V10O 28)·24H2O, have been solved and refined to R 1 = 0.0313 (for 3535 unique F0 > AσF reflections) and 0.0246 (for 3672 unique F0 > 4σF reflections), respectively. Huemulite is triclinic, space group…
The influence of the hydrostatic pressure on the piezoelectric response for tetragonal BaTiO3 and PbTiO3 monodomain crystals is investigated using Landau–Ginzburg–Devonshire phenomenological approach. It is shown that hydrostatic pressure could enhance the piezoelectric properties in some directions of crystals. The p…
We studied the pressure dependence of the thermoreflectance and piezo-optical coefficients of metal film transducers—Al, Ta, and Au(Pd) alloy (≈5 at. % Pd)—at a laser wavelength, 785 nm, commonly used in time-domain thermoreflectance (TDTR) and picosecond acoustics experiments. Al has exceptionally high thermoreflecta…
Abstract New hydroxytelechelic cis ‐1,4‐oligoisoprenes exhibiting variable values and distributions of the hydroxyl functionality were successfully prepared. The synthesis reactions involved chemical modifications of carbonyl telechelic cis ‐1,4‐polyisoprene, which was obtained by controlled degradation of synthetic o…
Abstract Highly flame‐retardant rigid polyurethane (RPU) foams were prepared by vacuum impregnation or pressure impregnation of sodium polyborate (SPB) solution. The RPU foams (10 mm thickness, 134–690% SPB) endured the flame of a butane gas burner for 167–1144 s, and the backside temperatures remained below 45°C unti…
This study attempts to investigate the pressure behavior of tubular knitted fabrics after a long period of time. For this purpose, two kinds of knitted fabric (plain and interlock) with various stitch lengths were chosen and the interfacial pressure and pressure reduction of fabrics after 48 hours were analyzed at dif…
Four fatty acids were used as a source of alkyl halides. Untraditionally tertiary amines were prepared by ethoxylation of aromatic and aliphatic fatty amines. These alkyl halide and tertiary amines were used to prepare 20 cationic quaternary ammonium surfactants (QASS). Their chemical structures were characterized and…
A functional polyhedral oligomeric silsesquioxane (POSS) with eight vinyl groups was used to fabricate a POSS/bismaleimide (BMI) nanocomposite as a potential matrix for RTM processing, and its blend with a thermoplastic polyether-ether ketone (PEK-C) was prepared. A self-designed optical microscope with a hot stage ha…
The dielectric response of Rb0.5(ND4)0.5D2PO4 (DRADP-50) dipolar glass has been studied at low temperatures. From the experimental results, the distribution of the relaxation times and of the local polarization at various temperatures is calculated. It is shown that the local-polarization distribution function obtaine…
Abstract Aviation turbine fuel is a mixture of various hydrocarbons and additives. Some fuel-soluble chemicals are added in small amounts to enhance or to maintain the properties related to fuel performance. In the present study, the influence of microbes on corrosion in aviation turbine fuel transporting pipeline is…
A new method is proposed for the low-temperature production of graphene with high yield. The method is based on the low-temperature synthesis and decomposition of graphite intercalation compounds with sodium ammoniates. The proposed technology retains high efficiency, which is typical of graphene synthesis via graphit…
A major challenge in the stoichiometric growth of complex oxide compounds is the control of the relative compositions of the constituent materials. A potential avenue for compositional analysis during growth is the use of x-ray fluorescence generated during reflection high energy electron diffraction measurements. Usi…
Nano films consisting of an alternating sequence of positively and negatively charged polyelectrolytes have been prepared by means of the electrostatic layer-by-layer (LBL) sequential assembly technique on treated and untreated mild steel wires. Inhibitor was encapsulated between cationic and anionic polyelectrolyte n…
An efficiency loss such as heat loss across bare pipe surfaces reduces the available energy to end-uses and increases the burden on boilers to meet the demand. Energy losses create additional stress on the system that accelerates wear and leads to overloading on the system for which it is not originally designed. In t…
Sheet metal forming experiments have been carried out on AZ31 and ZE10 sheets produced by rolling conventionally DC cast slabs as well as twin roll cast (TRC) strips. Nakajima tests were performed on the various sheet materials over the temperature range from RT to 200 °C using Hasek type samples of specified geometri…
Wettability and water-adhesion behavior are the most important properties of solid surfaces from both fundamental and practical aspects. Here, the biomimetic superhydrophobic surface was fabricated via a simple coating process using polyaniline (PANI) microspheres which is covered with PANI nanowires as functional com…