Materials Literature
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Plates, 6.3 mm thick, of 2205 duplex stainless steel (DSS) were gas metal arc welded (GMAW) under the application of an axial magnetic field (0 to 15 mT) with an ER-2209 filler wire using a gas mixture of 98%Ar + 2%O 2 . Microstructural characterization of the welds revealed that electromagnetic stirring (EMS) increas…
Inelastic neutron scattering measurements on $\mathrm{Ba}({\mathrm{Fe}}_{0.963}{\mathrm{Ni}}_{0.037}{)}_{2}{\mathrm{As}}_{2}$ manifest a neutron spin resonance in the superconducting state with anisotropic dispersion within the Fe layer. Whereas the resonance is sharply peaked at the antiferromagnetic (AFM) wave vecto…
A practical numerical method for the rapid construction of nanotube caps is proposed. Founded upon the notion of lattice duality, the algorithm considers the face dual representation of a given nanotube which is used to solve an energy minimization problem analogous to The Thomson Problem. Not only does this produce c…
Two types of 4f-3d thiostannates with general formula [Hen]₂[Ln(en)₄(CuSn₃S₉)]∙0.5 en (Ln1; Ln=La, 1; Ce, 2) and [Hen]₄[Ln(en)₄]₂[Cu₆Sn₆S₂₀]∙3 en (Ln2; Ln=Nd, 3; Gd, 4; Er, 5) were prepared by reactions of Ln₂O₃, Cu, Sn, and S in ethylenediamine (en) under solvothermal conditions between 160 and 190 °C. However, react…
The promotion of blood vessel initiation and growth plays an important role in the realization of therapeutic vascularization and regeneration of functional tissues. Astragalus membranaceus and angelica sinensis are commonly used traditional Chinese medicines for enriching the blood. In the current study astragaloside…
Gelatin‐protected silver nanoparticles have been synthesized by a one‐pot, green method for surface‐enhanced Raman scattering (SERS) applications using gelatin as the reducing and stabilizing agent. The gelatin protection on silver nanoparticle surface helps improve its stability greatly and water dispersibility, whil…
First-principles DFT calculations are carried out to study the changes in structures and electronic properties of two-dimensional single-layer graphene in the presence of non-covalent interactions induced by carbon and boron fullerenes (C60, C70, C80 and B80). Our study shows that larger carbon fullerene interacts mor…
Coupled processes of dynamic recovery and precipitation, occurring during hot-rolling and subsequent aging, lead to the formation of a unique honeycomb network of precipitates in commercial Mg–Y–Nd–Zr or WE43 alloy. The honeycomb network is developed on the (0 0 0 1)Mg basal planes and consisted of fine Nd-rich β 1 pl…
ABSTRACT A phosphorous flame retardant (DOPO‐MAH) was synthesized through the reaction between of 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO) and maleic anhydride (MAH) and confirmed by FT‐IR, 1 H NMR, and 31 P NMR techniques. The obtained flame retardant was then melt blended with poly(butylene terephth…
Weak polyelectrolytes (PEs) are complex because intertwined connections between conformation and charge are regulated by the local dielectric environment. While end-tethered PE chains-so-called PE "brushes"-are archetypal systems for comprehending structure-property relationships, it is revealed that the reference sta…
Thermal interface materials (TIMs) based on vertically aligned carbon nanotube (VACNT) films promise the unusual combination of high thermal conductance and low elastic modulus, properties that are critical for TIM performance and reliability. This paper reports through-plane thermal conductivity, heat capacity, and b…
Oxides formed by electrochemical treatment of metals frequently have properties and structures very different from the respective bulk oxides. Here, electronic structure and chemical composition were investigated for the oxide formed on polycrystalline zinc after electrochemical oxidation, and after subsequent reducti…
Most polyolefins that are used for dielectric materials exhibit a low dielectric constant and operating temperatures up to 70°C. Polyimides offer a means to a higher dielectric constant material by the introduction of a polar group in the polymer backbone and are thermally stable at temperatures exceeding 250°C. A com…
High pressure and high temperature synthesized MoB2 and WB2 compacts were investigated using X-ray diffraction, energy dispersive spectroscope, scanning electron microscope, Vickers indentation test and ultrasonic measurements. Experiments showed that both MoB2 and WB2 compacts are phase pure and with a grain size of…
Semiconductor quantum dots (QDs) have emerged as a new class of light harvesting materials for solar energy conversion due to their unique size-dependent properties. Most recent studies have focused on II-VI group (such as CdX, X = S, Se, and Te) QDs and lead salt (such as PbS, PbSe, and PbTe) QDs. In this paper, we i…
We present a unique experimental configuration that allows us to determine the interfacial forces on nearly parallel plates made from the thinnest possible mechanical structures, single and few layer graphene membranes. Our approach consists of using a pressure difference across a graphene membrane to bring the membra…
Little is known about the efficacy of pulsed ultrasound compared with continuous ultrasound. Previous studies on the efficacy of pulsed ultrasound were not systematic and gave different results. In this study, the effects of pulse length, pulse interval, pulse length × pulse intervals, and treatment time on sonochemic…
Several new thallium(iii) complexes, [Tl(4,4'-dmbpy)Cl3(DMSO)]·H2O (1), [Tl(4,4'-dtbpy)Cl3(DMSO)] (2), [Tl(5,5'-dmbpy)Cl3(DMSO)]·(5,5'-dmbpy) (3), and [Tl(6-mbpy)Cl3(DMSO)] (4) (4,4'-dmbpy = 4,4'-dimethyl-2,2'-bipyridine, 4,4'-dtbpy = 4,4'-ditert-butyl-2,2'-bipyridine, 5,5'-dmbpy = 5,5'-dimethyl-2,2'-bipyridine, and 6…
There is a growing interest in the use of green resources for nanoparticle (NP) synthesis. Natural polymer, Chitosan (CH) has been employed as templates for the preparation of metal oxide NPs. They modify the surface characteristics of the nanometal oxides generated. In the presence of template CH, the spatial separat…
Au revoIR: Hexaphyrin Au(III)-Ir(III) complexes were prepared from the reaction of a mono-Au(III) [26]hexaphyrin complex with [IrCl(cod)]2 followed by treatment with pyridine. N-Fusion reaction of this complex gave a syn-doubly N-fused hexaphyrin as the major product, which displayed antiaromatic properties such as st…