Materials Literature
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Energy band-gap engineering via impurity intercalation into the 2-D MoO 3 bilayer lattice has been studied using density functional theory calculations, and the effects of various kinds of dopants on the electronic structure have been explored. The dopants were incorporated via both oxygen and molybdenum substitution.…
The possibility of using amorphous diamond-like carbon (DLC) films for self-separation of gallium nitride (GaN) layers grown by hydride vapor-phase epitaxy has been analyzed. DLC films have been synthesized by plasma-enhanced chemical vapor deposition under low pressure on sapphire (Al 2 O 3 ) substrates with a (0001)…
The effect of foaming on the electrical conductivity of polystyrene/carbon composites with emphasis on the particle size of conductive filler and molding method has been studied. Carbon black and expanded graphite, as nano carbon fillers, and natural flake graphite, as a micro carbon filler, were used as conductive fi…
Porous silicon (PSi) has drawn considerable attention as material for solar cell and sensor applications because of its attractive properties like large surface area within a small volume, controllable pore sizes, convenient surface chemistry, and the ability to modulate refractive index as a function of depth. This t…
Nanoparticles with different morphology have been obtained by hydrothermal method in the system MgO–SiO 2 –TiO 2 –H 2 O. It has been found that in the investigated temperature–time interval the formation of nanotubes of hydrosilicate with the structure of chrysotile with a small amount of impurity phases predominantly…
Cobalt-doped ZnO powder samples were prepared by sol—gel and hydrothermal method combined. The prepared powder samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), electron paramagnetic resonance (EPR) and vibrating sample magnetometry (VSM). XRD patterns show that all the samples…
Due to high magnetic fields causing strong interactions between permanent magnets and other ferromagnetic material, transport and handling of magnetized magnet bodies is challenging. To avoid undesired effects, such as influences on sensitive devices or difficult separation of the single magnets from stack, spacing an…
In the present study, recycled natural rubber glove (rNRg) were used in an attempt to create a value-added thermoplastic elastomer material based on polypropylene/recycled natural rubber glove blends. Carbon black (CB) was also incorporated in a way to improve the mechanical properties to the blends. The blends were p…
Glazed glass cap and pin insulators that have been removed from the transmission line, have electrical characteristics ensuring them to be reused and reinstalled on lower voltage distribution level lines. The electrical properties determination involving insulator resistance, self-capacitance, corona inception voltage…
We investigate the effects of strain on the electronic and magnetic properties of ReS 2 monolayer with sulfur vacancies using density functional theory. Unstrained ReS 2 monolayer with monosulfur vacancy (V S ) and disulfur vacancy (V 2S ) both are nonmagnetic. However, as strain increases to 8%, V S -doped ReS 2 mono…
Effect of side chain length of carbamates
Magnetically controlled saturable reactors (MCSRs) are widely used in high voltage power system, but they make larger vibration and noise than transformers and other types of reactors due to the gapped iron-core structure and magnetic saturation. The main reasons of MCSR vibration are magnetostrictive effect of silico…
In this paper, an exact solution for the free longitudinal vibration of nanorod with arbitrary boundary conditions has been developed by an improved Fourier series method. Based on the nonlocal elasticity theory, the nanorod model with general boundary restraints has been formulated by introducing artificial springs a…
Abstract Two‐dimensional (2D) semiconductors gallium monochalcogenides GaX (X=S, Se), normally possessing the 2 H structure, attract great research interest due to their potential applications as future electronical and optical devices. In this paper, we for the first time studied the structural properties and electro…
In this work microphase separation in ideal interpenetrating networks as well as its influence on the mechanical properties of the networks has been studied. Structures with long-range order in such networks have not been found to be formed; the reason for this is apparently the weak bonding (physical entanglements) b…
Electrospun polyvinyl alcohol (PVA) nanowebs treated with a mixture of honey and polyhexamethylene biguanides (PHMBs, commercially available as Reputex 20) were prepared and characterized to evaluate their applicability in wound dressing applications. Fourier transform infrared spectroscopy was used to confirm the inc…
Flame retardancy and mechanical properties of poly(decamethylene terephthalamide) (PA10T) containing aluminum diethlyphosphinate (BEPAL) were investigated. The influence of BEPAL on the thermal degradation behavior of PA10T was studied using thermogravimetry, flammability test and chemical analysis. A decomposition mo…
The neutron structural analysis of Cu(Cr2 − x Al x )O4 and Cu(Fe2 − x Al x )O4 (0 ≤ x ≤ 2) nanopowders is performed. The samples are prepared by the thermal decomposition of mixed hydroxy compounds at 900°C. Different spinel phases are shown to form in Cu(Cr2 − x Al x )O4: a tetragonally distorted phase when x ≤ 1.0,…
The possibilities are studied for using an electromagnetic eddy-current technique of monitoring the phase composition and hardness of austenitic chromium–nickel steel that has been subjected to hardening frictional treatment in different technological regimes. It is shown that an eddy-current structuroscope and a Vekt…
A continuum model for describing the bending and free vibrations of a crystalline graphite sheet consisting of graphene layers is proposed. Graphene is modeled by a two-dimensional layer having a finite rigidity under extension and bending. The interval between graphene layers through which their Van-der-Waals interac…