Materials Literature
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The Deccan trap is a large igneous rock province located on the Deccan plateau of west-central India. There are several important structures located on Deccan trap basalt like Koyna dam hydropower project, Konkan railways, Katraj twin tunnels to name a few. In order to safeguard the structures from dynamic loading ari…
X-ray diffraction, dielectric, piezoelectric, and pyroelectric studies have been performed on ceramic samples of (1–2x)BiScO3 · xPbTiO3 · xPbMg1/3Nb2/3O3 (0.30 ≤ x ≤ 0.46) perovskite-like solid solutions. The solid solution symmetry was found to vary from the rhombohedral (x ≤ 0.38) to tetragonal (x ≥ 0.42) as x incre…
The aim of this work is to provide a comparative evaluation of luminescence efficiency of Lu2O3:Eu phosphors screens, in transmission mode, prepared with different grain shape and size, and manufactured by the sedimentation method. More specific, three screens were prepared with spherical grains of size 50 nm, 200 nm…
Dual emissions of carbon nanodots, as a ratiometric nanosensor, could be used to detect captopril based on the switch effect of Bi <sup>3+</sup> .
The dependence of the sintering of zirconium dioxide on the aluminum oxide content and the use of additives forming the liquid phase during sintering is studied. Dense nanostructured ceramic materials based on zirconium dioxide containing aluminum oxide are synthesized. It is shown that the use of additives based on s…
Perovskite-like phases AMn3V4O12 (A = Ca, Ce, and Sm) were prepared under borothermic conditions (p = 7.0–9.0 GPa, T = 700–1100°C). Their X-ray diffraction structure (space group Im $$\bar 3$$ , Z = 2) was determined, and unit cell parameters were calculated: for CaMn3V4O12: а = 7.40824(3) Å, for SmMn3V4O12: а = 7.452…
Recently, researchers produced perovskites structures used in optoelectronic devices as substrates, sensors. CsPbBr3 crystal is found in the cubic perovskite structure and its space group is Pm-3m. CsPbBr3 is a developing material for detection of X- and γ-ray radiations and the knowledge of the attenuation parameters…
The electrochemical oxidation and reduction reversibility along with the electrochemically mediated color change of triad azomethines were contingent on the central aromatic.
For a further improvement of formwork construction, it is necessary to know actual state because of the important role of the formwork contractor. Therefore, the purpose of this study is to reveal the actual state about component materials and erection of conventional formwork by the questionnaire survey targeted to f…
The process of forming a porous glass structure through an ion exchange between the alkali cations in the glass and salt melt’s cations with a smaller ionic radius has been investigated. Using methods of optical, electronic, atomic force microscopy, and X-ray 3D tomography the effect of the composition of the glass an…
A comprehensive experimental study on the effect of temperature, static load and electron beam irradiation on thermomechanical properties of polytetrafluoroethylene material was conducted. Four regions having different nature were detected on the curves of dependences of deformation ( ) from temperature (t). The obtai…
It has been shown that immediately after the synthesis, the luminescence efficiency of CdSe quantum dots stabilized by n-octadecylphosphonic acid together with one of the auxiliary ligands decreases in the order: oleylamine, hexadecylamine, trioctylphosphine oxide, 1-octadecene, and stearic acid, which is due to combi…
Spherical colloidal structures with a sparsely or densely packed shell of nanoparticles have been the subject of intense research efforts for more than a decade. Research has focused on the utilization of aqueous, soft, or solid cores mainly on the micron-scale. A synthesis route that combines a stabilizing biopolymer…
Tetramerous molecular assemblies composed of four oligofluorenes as a light-harvesting antenna (LHA) and a Pt–porphyrin core as a phosphorescent chromophore were designed and synthesized for obtaining efficient phosphorescent materials.
This study investigates the thermal and mechanical properties of epoxy polymer after exposure to different doses of electron beam irradiation.The epoxy polymer was prepared using epoxy-diane resin ED-20 cured by polyethylenepolyamine.The irradiation of the samples was carried out with doses of 30, 100 and 300 kGy.The…
The vertical Al <sub>2</sub> Se <sub>3</sub> /MoSe <sub>2</sub> heterojunction on sapphire was first fabricated <italic>via</italic> an ion beam-assisted process.
cations enable the rearrangement of the mononuclear complexes while maintaining their layer structure. Thus, these compounds have flexibilities both in the inter- and intra-layers.
HA and HA/Col were prepared by a solution treatment on AZ31 magnesium alloy. The microstructure and composition of coatings were studied by SEM, XRD. In vitro study was performed by immersion the sample In Hank’s solution for 7 days. The H 2 evolution of the HA/col coating was as low as 0.24 ml/cm 2 which can insignif…
Because of the unique optical properties, titanium dioxide (TiO 2 ) has been widely used as a white pigment over several decades. The numerous and diverse applications of TiO 2 can be found in many common products such as paints, plastics, paper, sunscreens, etc. In the past decades, the emergence of nanotechnology an…
This paper is intended to study the mechanism of strains and fractures emerging in pavement structures, give suggestions and recommendations to increase the robustness of different types of road pavements with the most appropriate design solutions. The subject of the research is the evaluation of strain mechanisms in…