Materials Science
Browse by
Recent Submissions
-
Wet Chemical Synthesis of AlxGa1−xAs Nanostructures: Investigation of Properties and Growth Mechanisms
(Crystals, 2024)This study focuses on the wet chemical synthesis of AlxGa1−xAs nanostructures, highlighting how different deposition conditions affect the film morphology and material properties. Electrochemical etching was used to texture GaAs substrates, enhancing mechanical adhesion and chemical bonding. Various deposition regimes, including voltage switching, gradual voltage increase, and ...2026-03-17 -
USING COAL FLOTATION WASTE AS A HEAT-INSULATING BILLING FOR THE HEAD PART OF A FORGING INGOT
(Eurasian Physical Technical Journal, 2024)The experience of using coal flotation waste as a weakly exothermic insulating backfill for insulating the head part of forging dead-melted steel ingots is presented. It has been shown that when using weakly exothermic fills based on single-component fills in the form of coal flotation waste, it is possible to reduce the chemical heterogeneity of the ingot by producing a ...2026-03-17 -
Unveiling the Structural and Optical Properties of MgAl2O4 Single Crystals Irradiated by Swift Heavy Ions
(Materials, 2024)A synthetic single crystal of magnesium-aluminate spinel was irradiated perpendicularly to the (111) plane with swift heavy xenon ions with an energy of 220 MeV. The modified layer was attested based on Raman scattering spectra recorded while focusing on the surface. A decrease in surface crystallinity was observed, reflected in the changes in fundamental optical characteristics such ...2026-03-17 -
Thin films of polyanilines and polymer nanocomposites for the development of chemical sensors
(Eurasian Journal of Physics and Functional Materials, 2024)The control and monitoring of humidity levels and the concentration of hazardous gases in the atmosphere are subjects of significant interest across various fields. Consequently, current research focuses primarily on the advancement of sensitive materials tailored for humidity and toxic gas sensors, aiming to achieve heightened performance and sensitivity while operating ...2026-03-17 -
The Thermal Stability and Photoluminescence of ZnSeO3 Nanocrystals Chemically Synthesized into SiO2/Si Track Templates
(Crystals, 2024)We report the effect of high-temperature treatment on the structure and photoluminescence of zinc selenite nanocrystals (ZnSeO3 ) deposited into SiO2/Si track templates. The templates were formed via irradiation with Xe ions (200 MeV, 108 ions/cm2 ) followed by etching in HF solution. ZnSeO3 nanocrystals were obtained via chemical deposition from the aqueous solution of ...2026-03-17 -
The Synthesis of a New Glycoluryl–Melamine–Formaldehyde Polymer under the Action of HEDP and the Investigation of the Content of Methylol Groups and Free Formaldehyde
(Polymers, 2024)This study outlines a method for preparing a complex involving glycoluril and melamine (GU-ME). The structure of the resultant complex was analyzed using IR and NMR spectroscopy. In the subsequent phase, the polymer GUMEFA was derived from the resultant complex, employing hydroxyethylidene diphosphonic acid (HEDP) as a sustainable plasticizer, with a proposed chemical mechanism ...2026-03-17 -
The Synthesis and Characterization of CdS Nanostructures Using a SiO2/Si Ion-Track Template
(Crystals, 2024)In the present work, we present the process of preparing CdS nanostructures based on templating synthesis using chemical deposition (CD) on a SiO2/Si substrate. A 0.7 µm thick silicon dioxide film was thermally prepared on the surface of an n-type conduction Si wafer, followed by the creation of latent ion tracks on the film by irradiating them with swift heavy Xe ions with ...2026-03-17 -
The Role of Methods for Applying Cucurbit[6]uril to Hydroxyapatite for the Morphological Tuning of Its Surface in the Process of Obtaining Composite Materials
(Materials, 2024)In this work, composite materials were obtained for the first time using various methods and the dependences of the resulting surface morphologies were investigated. This involves modifying the surface with cucurbit[n]urils, which are highly promising macrocyclic compounds. The process includes applying cucurbit[6]uril to the hydroxyapatite surface in water using different ...2026-03-17 -
Thermal-reduction and -oxidation of iron oxide slags generated from rolling mill steel industry
(Heat Treatment and Surface Engineering, 2025)Every year, thousands of tons of waste scales are produced during rolling mill steel processing worldwide. The scales are rich in hematite and magnetite, and different ways of reduction and oxidation have been proposed for recycling the iron oxides. Modern methods for removing and processing steel scales fall into three classes: mechanical, chemical, and electrochemical ...2026-03-17 -
Thermal Demercurization of Coal Sorbents
(Metals, 2025)The extraction of mercury in the vapor–gas phase from coal sorbents, used to capture mercury from industrial waste gases, was studied herein to develop a unified technology. The behavior of mercury compounds (Hg2Cl2 and HgCl2) under conditions of thermal demercurization in a fore vacuum and at atmospheric pressure was examined using partial pressure diagrams. It was established ...2026-03-17 -
The Method of Direct and Reverse Phase Portraits as a Tool for Systematizing the Results of Studies of Phase Transitions in Solutions of Thermosensitive Polymers
(Gels, 2024)It is shown that a more than significant amount of experimental data obtained in the field of studying systems based on thermosensitive hydrophilic polymers and reflected in the literature over the past decades makes the issue of their systematization and classification relevant. This, in turn, makes relevant the question of choosing the appropriate classification criteria. ...2026-03-17 -
The Influence of Variations in Synthesis Conditions on the Phase Composition, Strength and Shielding Characteristics of CuBi2O4 Films
(Crystals, 2024)This paper presents the results of the influence of variation of the synthesis conditions of CuBi/CuBi2O4 films with a change in the applied potential difference, as well as a change in electrolyte solutions (in the case of adding cobalt or nickel sulfates to the electrolyte solution) on changes in the phase composition, structural parameters and strength characteristics of ...2026-03-17 -
The Influence of Temperature and Stoichiometry on the Optical Properties of CdSe Nanoplatelets
(Nanomaterials, 2024)Colloidal quasi-two-dimensional cadmium chalcogenide nanoplatelets have attracted considerable interest due to their narrow excitonic emission and absorption bands, making them promising candidates for advanced optical applications. In this study, the synthesis of quasi-twodimensional CdSe NPLs with a thickness of 3.5 monolayers was investigated to understand the effects of ...2026-03-17 -
THE EFFICIENCY DEPENDANCE OF A SINGLE-CIRCUIT POWER UNIT WITH A HELIUM-COOLED REACTOR AND A HYDROGEN MODULE ON THE DEGREE OF REGENERATION
(Eurasian Physical Technical Journal, 2025)The most attractive single-circuit scheme of the power unit was chosen. Helium at the outlet of the reactor core enters the steam generator, where it gives part of the heat to generate highly superheated steam for the electrolysis plant. Next, helium operates in a closed gas turbine cycle with heat recovery. A gas-cooled reactor with a turbine and compressor allows the use ...2026-03-17 -
The Effect of Mineral Fillers on the Rheological and Performance Properties of Self-Compacting Concretes in the Production of Reinforced Concrete Products
(Journal of Composites Science, 2025)This study investigates the impact of widely used mineral fillers in self-compacting concrete compositions applied in vibration-free reinforced concrete production technology, as a means of enhancing rheological characteristics and cost-effectiveness. Three distinct types of mineral fillers, including the well-studied fillers micro-silica and metakaolin, as well as the ...2026-03-17 -
The Effect of 147 MeV 84Kr and 24.5 MeV 14N Ions Irradiation on the Optical Absorption, Luminescence, Raman Spectra and Surface of BaFBr Crystals
(Crystals, 2024)Today, BaFBr crystals activated by europium ions are used as detectors that store absorbed energy in metastable centers. In these materials, the image created by X-ray irradiation remains stable in the dark for long periods at room temperature. As a result, memory image plates are created, and they are extended to other types of ionizing radiation as well. Despite significant ...2026-03-17 -
The influence of the current law of the Astana International Financial Center on the development of the legal system of Kazakhstan
(Scientific Herald of Uzhhorod University Series “Physics”, 2024)Relevance. The relevance of the problem under study lies in the need to study the legal system of the Republic of Kazakhstan and the functioning Astana International Financial Center (AIFC), the current law of which interacts with the current law of the Republic of Kazakhstan. Purpose. In this regard, the purpose of this article is to explore the interaction between the ...2026-03-17 -
The effect of temperature factor during heavy ion irradiation on structural disordering of SiC ceramics
(Optical Materials: X, 2025)The paper presents the results of the influence of heavy ion irradiation on the formation of anisotropic distortions of the crystal structure and electron density distribution in SiC ceramics. The assessment of the change in the properties of the damaged layer was carried out using Raman spectroscopy methods, and using data on structural changes obtained using the X-ray ...2026-03-17 -
The band structure of semiconducting tetragonal Na4Cu2S3 phase
(Eurasian Journal of Physics and Functional Materials, 2024)Previously unknown the band structure of Na4Cu2S3 compound has been calculated from first principles. According to the obtained results, the compound exhibits semiconducting properties. The Na4Cu2S3 compound has the band gap 2.164 eV and it is characterized by a high density of states near the Fermi level.2026-03-16 -
Temperature-dependent luminescence of europium-doped Ga₂O₃ ceramics
(Optical Materials: X, 2025)This study explores the synthesis and luminescent properties of europium-doped gallium oxide (Ga₂O₃:Eu) ce ramics fabricated via electron beam-assisted synthesis (EBAS) at 1.4 MeV. The resulting Ga₂O₃:Eu ceramics exhibit a nanocrystalline structure with an average crystallite size of ~30 nm, high crystallinity, and minimal lattice strain (<0.5 %). Luminescence analysis from ...2026-03-16
RSS 1.0