Materials Science: Недавние поступления
Отображаемые элементы 241-260 из 559
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Thermal and electrical properties of nanocrystalline superionic NaxCu1.75S (x=0.1, 0.15, 0.2, 25) compounds
(Eurasian Journal of Physics and Functional Materials, 2023)Kubenova, M.M.; Kuterbekov, K.A.; Balapanov, M.Kh.; Ishembetov, R.Kh.; Akhmetgaliev, B.M.; Kabyshev, A.M.; Bekmyrza, K.Zh.; Zeleev, M.Kh.; Palymbetov, R.Sh.; and Baikhozhaeva, B.U. (2023) "Thermal and electrical properties of nanocrystalline superionic NaxCu1.75S (x=0.1, 0.15, 0.2, 25) compounds," Eurasian Journal of Physics and Functional Materials: Vol. 7: No. 1, Article 4. ...2025-01-08 -
The Optimization of Radiation Synthesis Modes for YAG:Ce Ceramics
(Materials, 2023)Lisitsyn, V.; Mussakhanov, D.; Tulegenova, A.; Kaneva, E.; Lisitsyna, L.; Golkovski, M.; Zhunusbekov, A. The Optimization of Radiation Synthesis Modes for YAG:Ce Ceramics. Materials 2023, 16, 3158. https://doi.org/10.3390/ ma160831582025-01-08 -
The modification of PETF-membranes by Langmuir-Blodgett films of Nafion
(IOP Conference Series: Materials Science and Engineering, 2019)2025-01-08 -
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. ...2025-01-08 -
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 ...2025-01-08 -
The influence of experimental studies on the stability of hydraulic structures
(IOP Conference Series: Materials Science and Engineering, 2021)The article shows the main causes of accidents dams, including the effect influence of the undermining of territories. The aim of this work was to evaluate the possibility the formations in the model of the dams a cracks with certain areas of their distribution, as well as the degree of influence of reinforcement on their overall stability. Failure analysis shows that the ...2025-01-08 -
The Effect of Low-Modulus Plastic Fiber on the Physical and Technical Characteristics of Modified Heavy Concretes Based on Polycarboxylates and Microsilica
(Materials, 2022)Manufacturers of building materials strive to optimize the three basic concrete properties— strength, durability, and shrinkage deformation, of which the focus is generally on the durability in the structure when designing and monitoring the poured concrete. Studying concretes’ structural performance and the change in their characteristics over time enables the solution of ...2025-01-08 -
The effect of irradiation with swift heavy ions on the structural and morphological properties of beryllium oxide ceramics
(Eurasian Journal of Physics and Functional Materials, 2019)2025-01-08 -
The effect of high-temperature annealing on the phase transformations of the perovskite YTiO3−x system
(Eurasian Journal of Physics and Functional Materials, 2019)This paper presents the results of a study of the structural characteristics of perovskite systems based on YTiOx. These samples were subjected to heat treatment in the process of solid-phase synthesis. The change in physicochemical properties was investigated by scanning electron microscopy, X-ray structural and energy dispersive analysis. In the course of the work, it was ...2025-01-08 -
The Effect of Fast Kr Ion Irradiation on the Optical Absorption, Luminescence, and Raman Spectra of BaFBr Crystals
(Crystals, 2023)In this work, using photoluminescence (PL), optical absorption (OA), Raman spectroscopy (RS), and atomic force microscopy (AFM), the radiation damage of BaFBr crystals irradiated with 147 MeV 84Kr ions to fluences (1010–1014) cm2 was investigated. The manifestations of the oxygen impurity contained in the studied crystals on the effects associated with ion irradiation are ...2025-01-08 -
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)Akilbekov, A.; Kenbayev, D.; Dauletbekova, A.; Shalaev, A.; Akylbekova, A.; Aralbayeva, G.; Baimukhanov, Z.; Baizhumanov, M.; Elsts, E.; Popov, A.I. 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, 14, 480. https://doi.org/ 10.3390/cryst140604802025-01-08 -
The Current Radiation Situation of the Territory Near the Uranium Mining Enterprises of Northern Kazakhstan
(Eurasian Chemico-Technological Journal, 2021)Radioactive waste near the industrial zones of the mining administrations of the Stepnogorsk Mining and Chemical Combine, which occupy vast areas of the territory, remains an urgent problem for Northern Kazakhstan. For example, waste rock processing referred to as “tailings”, is contained in huge industrial basinlakes, called tailings. Each liter of jelly-like “pulp”, in ...2025-01-08 -
THE COMPONENT COMPOSITION OF THE TRAGOPOGON ORIENTALIS VOLATILE CONSTITUENTS AND ITS BIOLOGICAL ACTIVITY
(Khimiya Rastitel'nogo Syr'ya, 2019)The purpose of this study is the chemical investigation of the composition of Tragopogon orientalis volatile constituents (VC) and studying of its biological activity. This article presents the results of research on the study of the chemical composition of species Tragopogon, as well as data of antiradical and cytotoxic activity. To study the dried and crushed aboveground part ...2025-01-08 -
Technology of production of polystyrene concrete using solar energy
(MATEC Web of Conferences, 2018)The energy of solar radiation is a powerful energy reserve at the surface of the globe which is about twenty billion kW. This amount of energy is more than 100 times greater than the amount of necessary energy for the whole planet; besides the usage of this powerful energy radiator is not associated with polluting substances that pollute the planet. The usage of solar ...2025-01-08 -
Technology of Manufacturing Connections on Steel Rods Glued into Wood
(IOP Conference Series: Materials Science and Engineering, 2019)In modern construction, glued wood is used mainly by Scandinavian countries, Canada, the USA and Russia. It is rational to use glued wood not only in low-rise housing construction, but also as supporting and protecting structures of large-span public buildings. Large-span glued wooden structures have become popular in modern construction and are widely used for public ...2025-01-08 -
TACHYONIZATION COSMOLOGICAL MODEL IN THE FRAMEWORK OF LINEAR FORM-INVARIANCE TRANSFORMATIONS
(Eurasian Physical Technical Journal, 2021)This work dedicated to the investigation cosmological models based on tachyon field. It was showed that Einstein’s field equations for spatially flat, homogeneous and isotropic Friedman-Robertson-Walker space-time have form-invariance of symmetry, obtained by form-invariance of transformations. The form-invariance of transformations is specified in the general case by the ...2025-01-08 -
Systematic Approach to the Elaboration of a Structured Model of a Sulfur Production Unit under Uncertainty
(IOP Conference Series: Materials Science and Engineering, 2019)The paper proposes a systematic approach to the elaboration of a structured mathematical model and modeling of chemical and technological systems under uncertainty exemplified by a sulfur production unit. The novelty of the suggested method lies in the choice of a suitable model type for each element of the system based on the systematic analysis, development of the selected ...2025-01-08 -
Synthesis, Properties and Photocatalytic Activity of CaTiO3-Based Ceramics Doped with Lanthanum
(Nanomaterials, 2022)Zdorovets, M.V.; Borgekov, D.B.; Zhumatayeva, I.Z.; Kenzhina, I.E.; Kozlovskiy, A.L. Synthesis, Properties and Photocatalytic Activity of CaTiO3-Based Ceramics Doped with Lanthanum. Nanomaterials 2022, 12, 2241. https://doi.org/10.3390/ nano121322412025-01-08 -
Synthesis, Phase Transformations and Strength Properties of Nanostructured (1 − x)ZrO2 − xCeO2 Composite Ceramics
(Nanomaterials, 2022)Berguzinov, A.; Kozlovskiy, A.; Khametova, A.A.; Shlimas, D.I. Synthesis, Phase Transformations and Strength Properties of Nanostructured (1 − x)ZrO2 − xCeO2 Composite Ceramics. Nanomaterials 2022, 12, 1979. https://doi.org/10.3390/ nano121219792025-01-08 -
Synthesis of Orthorhombic Tin Dioxide Nanowires in Track Templates
(Materials, 2024)Baimukhanov, Z.; Dauletbekova, A.; Junisbekova, D.; Kalytka, V.; Akilbekov, A.; Akylbekova, A.; Baubekova, G.; Aralbayeva, G.; Bazarbek, A.-D.; Usseinov, A.; et al. Synthesis of Orthorhombic Tin Dioxide Nanowires in Track Templates. Materials 2024, 17, 1226. https://doi.org/10.3390/ ma170612262025-01-08