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Chemical Engineering: Recent submissions

Now showing items 41-60 of 140

The effect of antifreeze reagent on seasonal frozen soils

Zhussupbekov, Askar Zh.; Montayeva, Ainur S.; Montayev, Sarsenbek A. (Periodicals of Engineering and Natural Sciences, 2021-07)

The design, construction, and maintenance of pile foundations are dependent on special weather conditions in Northern and Central part of Kazakhstan. The winter months in these areas are very long which starts from ...
Synthesis, Properties and Photocatalytic Activity of CaTiO3-Based Ceramics Doped with Lanthanum

Zdorovets, Maxim V.; Borgekov, Daryn B.; Zhumatayeva, Inesh Z.; Kenzhina, Inesh E.; Kozlovskiy, Artem L. (Nanomaterials, 2022)

The aim of this work is to study the effect of lanthanum doping on the phase formation processes in ceramics based on CaTiO3 , as well as to evaluate the effectiveness of the ceramics as photocatalysts for the decomposition ...
Synthesis, Phase Transformations and Strength Properties of Nanostructured (1 − x)ZrO2 − xCeO2 Composite Ceramics

Berguzinov, Askhat; Kozlovskiy, Artem; Khametova, Ainagul A.; Shlimas, Dmitriy I. (Nanomaterials, 2022)

The aim of this work is to study the properties of nanostructured (1 − x)ZrO2 − xCeO2 composite ceramics, depending on the content of oxide components, as well as to establish the relationship between the phase composition ...
Synthesis and Properties of Ferrite-Based Nanoparticles

Kadyrzhanov, Kayrat K.; Egizbek, Kamila; Kozlovskiy, Artem L.; Zdorovets, Maxim V. (Nanomaterials, 2019)

The work is dedicated to the study of the structural and optical characteristics, as well as the phase transformations, of ferrite nanoparticles of CeO2-Fe2O3. To characterize the results obtained, the methods of scanning ...
Surface Interactions and Mechanisms Study on the Removal of Iodide from Water by Use of Natural Zeolite-Based Silver Nanocomposites

Inglezakis, Vassilis J.; Satayeva, Aliya; Yagofarova, Almira; Tauanov, Zhandos; Meiramkulova, Kulyash; Farrando-Pérez, Judit; Bear, Joseph C. (Nanomaterials, 2020)

In this work a natural zeolite was modified with silver following two different methods to derive Ag2O and Ag0 nanocomposites. The materials were fully characterized and the results showed that both materials were decorated ...
Study of the Effect of Doping ZrO2 Ceramics with MgO to Increase the Resistance to Polymorphic Transformations under the Action of Irradiation

Kurakhmedov, Alisher E.; Alin, Mahambet; Temir, Adilet M.; Ivanov, Igor A.; Bikhert, Yeugeniy V.; Ungarbayev, Yerulan O.; Zdorovets, Maxim V.; Kozlovskiy, Artem L. (Nanomaterials, 2021)

The purpose of this study is to assess the effect of doping ZrO2 ceramics with MgO on radiation swelling and polymorphic transformations, as a result of irradiation with heavy ions. Interest in these types of materials ...
Study of the Effect of Adding Nb2O5 on Calcium Titanate-Based Ferroelectric Ceramics

Zdorovets, Maxim V.; Moldabayeva, Gulnaz Zh.; Zhumatayeva, Inesh Z.; Borgekov, Daryn B.; Shakirzyanov, Rafael I.; Kozlovskiy, Artem L. (ChemEngineering, 2023)

This paper considers the effect of adding niobium oxide (Nb2O5 ) to ferroelectric ceramics based on calcium titanate (CaTiO3 ), and establishes a connection between the observed alterations in strength and dielectric ...
Study of Magnetic Properties of Fe100-xNix Nanostructures Using the Mössbauer Spectroscopy Method

Kadyrzhanov, Kayrat K.; Rusakov, Vyacheslav S.; Fadeev, Maxim S.; Kiseleva, Tatyana Yu.; Kozlovskiy, Artem L.; Kenzhina, Inesh E.; Zdorovets, Maxim V. (Nanomaterials, 2019)

Hyperfine interactions of 57Fe nuclei in Fe100-xNix nanostructures synthesized in polymer ion-track membranes were studied by Mössbauer spectroscopy. The main part of obtained nanostructures was Fe100-xNix nanotubes with ...
Study of Degradation Mechanisms of Strength and Thermal-Physical Properties of Nitride and Carbide Ceramics—Promising Materials for Nuclear Energy

Berguzinov, Askhat; Kozlovskiy, Artem; Kenzhina, Inesh; Shlimas, Dmitriy I. (Nanomaterials, 2022)

The dependences of changes in the strength properties of nitride and carbide ceramics under high temperature irradiation with Kr15+ and Xe22+ heavy ions at irradiation doses of 1012–1015 ions/cm2 are presented in this ...
Study of Corrosion Mechanisms in Corrosive Media and Their Influence on the Absorption Capacity of Fe2O3/NdFeO3 Nanocomposites

Kadyrzhanov, Kayrat K.; Kozlovskiy, Artem L.; Egizbek, Kamila; Kenzhina, Inesh E.; Abdinov, Rauan Sh.; Zdorovets, Maxim V. (Nanomaterials, 2022)

This paper presents the results of a study of the change in the stability of Fe2O3/NdFeO3 nanocomposites when exposed to aggressive media over a long period of time. The main purpose of these studies is to investigate ...
Study of Changes in Optical and Heat-Conducting Properties of AlN Ceramics under Irradiation with Kr15+ and Xe22+ Heavy Ions

Kozlovskiy, Artem L.; Zdorovets, Maxim V.; Uglov, Vladimir V. (Nanomaterials, 2020)

AlN-based ceramics have great prospects for use in the field of structural materials for reactors of the new generation of GenIV, as well as dosimetric and optical devices. Interest in them is due to their unique physical ...
Structural, Dielectric, and Mechanical Properties of High-Content Cubic Zirconia Ceramics Obtained via Solid-State Synthesis

Giniyatova, Sholpan G.; Kozlovskiy, Artem L.; Shakirzyanov, Rafael I.; Volodina, Natalia O.; Shlimas, Dmitriy I.; Borgekov, Daryn B. (Applied Sciences, 2023)

In this work, the structural, electrical, and mechanical properties and phase composition of high-content cubic zirconium oxide ceramics stabilized with Ca were investigated. The novelty of this work lies in evaluating ...
Stimuli-Responsive Track-Etched Membranes for Separation of Water–Oil Emulsions

Muslimova, Indira B.; Zhatkanbayeva, Zh K.; Omertasov, Dias D.; Melnikova, Galina B.; Yeszhanov, Arman B.; Güven, Olgun; Chizhik, Sergei A.; Zdorovets, Maxim V.; Korolkov, Ilya V. (Membranes, 2023)

In this work, we have developed a method for the preparation of pH-responsive tracketched membranes (TeMs) based on poly(ethylene terephthalate) (PET) with pore diameters of 2.0 ± 0.1 µm of cylindrical shape by RAFT block ...
Specific Features of Formation of Electron and Hole Trapping Centers in Irradiated CaSO4-Mn and BaSO4-Mn

Nurakhmetov, Turlybek. N.; Alibay, Temirulan. T.; Zhangylyssov, Keleshek. B.; Daurenbekov, Dulat. H.; Zhunusbekov, Amangeldy. M.; Kainarbay, Aset. Zh.; Sadykova, Batsaiy. M.; Tolekov, Doszhan. A.; Shamiyeva, Raushan. K. (Crystals, 2023)

Spectroscopic and thermoactivation methods were used to study the processes of accumulation of electron and hole trapping centers and energy transfer of electronic excitations to impurities in CaSO4 -Mn and BaSO4 -Mn. ...
Some Thermoelectric Phenomena in Copper Chalcogenides Replaced by Lithium and Sodium Alkaline Metals

Kubenova, Marzhan M.; Kuterbekov, Kairat A.; Balapanov, Malik K.; Ishembetov, Rais K.; Kabyshev, Asset M.; Bekmyrza, Kenzhebatyr Z. (Nanomaterials, 2021)

This review presents thermoelectric phenomena in copper chalcogenides substituted with sodium and lithium alkali metals. The results for other modern thermoelectric materials are presented for comparison. The results of ...
Simulation of a control system for the accident-free flight of three UAVs in the V formation in a heterogeneous environment

Toleu, Altynbek Sh.; Zakarina, Aina Zh. (Periodicals of Engineering and Natural Sciences, 2021-10)

Modern methods of creating groups of unmanned aerial vehicles (UAVs) require the use of complex (generalised) criteria, introduced mathematical models in the process of optimising the parameters of the UAV components. ...
Sensitivity Enhancement of CO2 Sensors at Room Temperature Based on the CZO Nanorod Architecture

Soltabayev, Baktiyar; Raiymbekov, Yessimzhan; Nuftolla, Aidarbek; Turlybekuly, Amanzhol; Yergaliuly, Gani; Mentbayeva, Almagul (ACS Sensors, 2024)

Cobalt-doped ZnO (CZO) thin films were deposited on glass substrates at room temperature by radio frequency (RF) magnetron sputtering of a single target prepared with ZnO and Co3O4 powders. Changes in the crystallinity, ...
Scalar field dark energy: insights into cosmological evolution and black hole accretion

Koussour, M.; Sekhmani, Y.; Alfedeel, Alnadhief H. A.; Awad, F.; Myrzakulov, N. (The European Physical Journal Plus, 2023)

We propose a novel approach to parameterize the equation of state for Scalar Field Dark Energy (SFDE) and use it to derive analytical solutions for various cosmological parameters. Using statistical MCMC with Bayesian ...
Retraction notice to "Effect of swift heavy ions irradiation on AlN ceramics properties" [Ceramics International 44 (2018) 19787-19793]

Kozlovskiya, A.; Dukenbayev, K.; Kenzhina, I.; Tosic, D.; Zdorovets, M. (Ceramics International, 2019)

The article is a duplicate of a paper that has already been published in Materials Research Express entitled “Investigation of the influence of irradiation with Fe+7 ions on structural properties of AlN ceramics”, authored ...
Recent Developments of TiO2-Based Photocatalysis in the Hydrogen Evolution and Photodegradation: A Review

Bakbolat, Baglan; Daulbayev, Chingis; Sultanov, Fail; Beissenov, Renat; Umirzakov, Arman; Mereke, Almaz; Bekbaev, Askhat; Chuprakov, Igor (Nanomaterials, 2020)

The growth of industrialization, which is forced to use non-renewable energy sources, leads to an increase in environmental pollution. Therefore, it is necessary not only to reduce the use of fossil fuels to meet energy ...

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