Inorganic Materials: Applied Research最新文献_第3页

Spherical Submicron Powders with a Nanopolycrystalline Superstructure—a Promising Raw Material for Obtaining Fine-Grained High-Density Ceramics 具有纳米多晶上层结构的球形亚微米粉末--一种有望获得细粒度高密度陶瓷的原材料

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700795

L. V. Vinogradov, V. I. Antipov, A. G. Kolmakov, Y. E. Mukhina, E. E. Baranov

{"title":"Spherical Submicron Powders with a Nanopolycrystalline Superstructure—a Promising Raw Material for Obtaining Fine-Grained High-Density Ceramics","authors":"L. V. Vinogradov, V. I. Antipov, A. G. Kolmakov, Y. E. Mukhina, E. E. Baranov","doi":"10.1134/S2075113324700795","DOIUrl":"10.1134/S2075113324700795","url":null,"abstract":"The unique properties and possible fields of application of submicron powders from refractory oxides obtained by aerosol-spray pyrolysis are considered. Analysis of experimental results obtained by researchers at different times convincingly proves the prospects of using nonagglomerating aerosol submicron spherical powders to produce ceramic materials with a high-density, uniform, and fine-grained structure that does not contain pores. The uniqueness of aerosol powders is due to the presence in particles of a nanopolycrystalline substructure with a developed network of grain boundaries, which during the sintering process, has a significant impact on the efficiency of diffusion mass transfer and promotes to increase the rate and completeness of pore overgrowth. Aerosol powders acquire these properties through the use of ultrasonic spray pyrolysis, where equilibrium physical and chemical processes occur in ultra-small local volumes of aerosol droplets ensuring a high degree of homogeneity of the resulting powder. Being formed ultra-thin substructure of aerosol powders ensures their complete sintering at low temperatures allowing the formation of a high-density, nonporous ceramic material with extreme physical and mechanical characteristics. The practical use of nanostructured aerosol powders does not require the use of operations related to their preliminary preparation (grinding–crushing, classification, purification from impurities, etc.), and, unlike ultrafine powders, such powders are easily molded using traditional methods of powder technology (uniaxial pressing, hot casting, etc.).","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1199 - 1205"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Experimental Verification of the Mechanism of Formation of Condensed Products from a Powder Mixture of Ti–B–TiH2 in the Course of Self-Propagating High-Temperature Synthesis 自蔓延高温合成过程中 Ti-B-TiH2 粉末混合物凝聚产物形成机理的实验验证

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701223

A. G. Tarasov, A. V. Linde, V. T. Telepa, I. A. Studenikin

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The Influence of Aluminosilicate Cenospheres on the Structure and Properties of Elastomeric Composite Materials Based on Ethylene–Propylene–Diene Elastomers 硅酸铝仙人球对基于乙烯-丙烯-二烯弹性体的弹性体复合材料结构和性能的影响

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700977

K. V. Sukhareva, I. A. Mikhailov, N. O. Belyaeva, A. D. Buluchevskaya, M. E. Mikhailova, T. I. Chalykh, L. R. Lyusova, A. A. Popov

{"title":"The Influence of Aluminosilicate Cenospheres on the Structure and Properties of Elastomeric Composite Materials Based on Ethylene–Propylene–Diene Elastomers","authors":"K. V. Sukhareva, I. A. Mikhailov, N. O. Belyaeva, A. D. Buluchevskaya, M. E. Mikhailova, T. I. Chalykh, L. R. Lyusova, A. A. Popov","doi":"10.1134/S2075113324700977","DOIUrl":"10.1134/S2075113324700977","url":null,"abstract":"The effect of different concentrations of fly ash aluminosilicate cenospheres on the structure and properties of elastomeric composites is studied. Composite materials based on ethylene–propylene–diene rubber (EPDM-40) with different mass fractions of fly ash (10, 20, 30%) are obtained using laboratory rollers. The microstructure of mixtures of EPDM and aluminosilicate cenospheres is studied by optical microscopy. It is shown that the concentration of the filler of more than 30 wt % increases the concentration of larger cenosphere agglomerates in the structure, which indicates interfacial separation in the mixtures, which is probably associated with the fact that mechanical mixing on mixing equipment does not make it possible to achieve uniform distribution of the filler throughout the elastomeric matrix. The appearance of new absorption bands in the region of 1400–800 cm–1 that correspond to the stretching vibrations of Si–O–Si present in aluminosilicate cenospheres is detected in the IR spectra. According to the thermogravimetry data of the compositions under study, the introduction of aluminosilicate cenospheres promotes a slight increase in the thermal stability of the composition under study with the concentration of cenospheres of more than 30%. The influence of the concentration of aluminosilicate cenospheres on the resistance of the composites to aggressive media is analyzed, and it is found that the introduction of a cenosphere filler in the amount of 10 to 30 wt % into mixtures based on EPDM can increase the oil and petrol resistance of the materials.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1342 - 1349"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142411076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Cathodic Chrome Embedding in a Zinc Coating on Protection Properties 阴极铬嵌入锌涂层对保护性能的影响

IF 0.5

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S207511332470120X

I. S. Pankratov, N. D. Solovyova

{"title":"The Effect of Cathodic Chrome Embedding in a Zinc Coating on Protection Properties","authors":"I. S. Pankratov, N. D. Solovyova","doi":"10.1134/S207511332470120X","DOIUrl":"10.1134/S207511332470120X","url":null,"abstract":"The effect of cathodic embedding chromium into zinc coating layers is analyzed from the standpoint of change in corrosion resistance. The zinc is deposited from electrolytes of various compositions on electrodes made of St3 steel grade. Grade TsO zinc is used as anode. The preliminary treatment of steel electrode involves treating the surface in the prephase potentiostatic embedding (PPD) mode at a potential 50 mV more positive than equilibrium zinc potential Eeq of the working electrolyte for 5 min. The zinc coating layer is deposited in potentiostatic mode at a potential of –1.20 V relative to the silver chloride reference electrode. The introduction of chromium into the electrodeposited zinc coating is made from electrolytes containing a trivalent chromium salt. The results of X-ray fluorescence analysis of the components of working electrodes after cathodic introduction of chromium, as well as the morphology of the surface formed, are explored using the scanning electron microscopy indicating the presence of chromium in the coating and its effect on the structure. The corrosion resistance of zinc coating layers modified through cathodic introduction of chromium at potentials of –1.05 and –1.10 V for 5 min is better than in chromated zinc.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1516 - 1521"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142411082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Electric Pulse Treatment of Cured Thermosetting Synthetic Resins 对固化热固性合成树脂进行电脉冲处理

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701247

O. Yu. Erenkov, S. P. Isaev, D. O. Yavorskiy

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Artificial Intelligence in Materials Science and Modern Concrete Technologies: Analysis of Possibilities and Prospects 人工智能在材料科学和现代混凝土技术中的应用：可能性与前景分析

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700783

V. A. Poluektova, M. A. Poluektov

{"title":"Artificial Intelligence in Materials Science and Modern Concrete Technologies: Analysis of Possibilities and Prospects","authors":"V. A. Poluektova, M. A. Poluektov","doi":"10.1134/S2075113324700783","DOIUrl":"10.1134/S2075113324700783","url":null,"abstract":"Abstract—An analysis of current trends and opportunities for the application of artificial intelligence (AI) in materials science and concrete technology, including 3D printing in construction, is presented. The key role of AI in predicting material properties, developing new materials, and quality control is highlighted. By analyzing large volumes of data collected from numerous studies, AI can suggest optimal parameters to achieve desired material properties, thereby reducing costs and increasing production efficiency. Existing rheological models, such as the Bingham–Shvedov model or the Herschel–Bulkley model, describe material behavior based on specific equations and parameters. These models can be useful in predicting concrete properties, especially when data on its component composition is available. However, these models may be limited in their predictive accuracy, particularly for nonstandard or novel materials. It has been found that machine learning and neural networks have the potential to provide accurate predictions of rheological and physicomechanical properties of concrete materials, considering multiple parameters that influence material characteristics, including chemical and mineralogical composition, as well as structural features. The combination of experimental data and AI can successfully optimize compositions and properties during production, reducing costs and research/testing time, and opening new opportunities for researchers and engineers in the field of materials science. Machine-learning algorithms such as XGBoost, LightGBM, Catboost, and NGBoost demonstrate high predictive accuracy and have become powerful tools in the design of concrete compositions and innovative technologies. The analysis of Shapley additive explanations allows us to understand which parameters of a concrete mixture have the greatest influence on its characteristics.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1187 - 1198"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New Epoxy-Imide Resin 新型环氧-酰亚胺树脂

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S207511332470103X

E. T. Aslanova, S. Y. Heydarova, E. G. Iskenderova, B. A. Mamedov

{"title":"New Epoxy-Imide Resin","authors":"E. T. Aslanova, S. Y. Heydarova, E. G. Iskenderova, B. A. Mamedov","doi":"10.1134/S207511332470103X","DOIUrl":"10.1134/S207511332470103X","url":null,"abstract":"N,N'-Diglycidyl-1,3-bis(carboxymethylestersulfoimide) of 2-hydroxypropyl saccharin-6-carboxylic acid is obtained by interaction of dipotassium salt of 2-hydroxypropyl-1,3-bis(carboxymethylestersulfoimide) of saccharin-6-carboxylic acid with epichlorohydrin. The structure of the epoxy-imide compound is confirmed by the data of IR spectroscopy. A thermostable hot-curing epoxy-imide composition is made on the basis of the obtained resin. A composition based on an ED-20 epoxydiane resin is also made for comparative estimation of the heat resistance of the obtained oligomer. The curing process of the composition is studied by differential thermal analysis on a derivatograph of the Paulik–Paulik–Erdey system. It is found that the degree of cure of the obtained composition under the optimal regime of curing reaches 82%. It is determined that the composite material based on the epoxy-imide resin is characterized by sufficiently high thermal indices in comparison with materials based on an ED-20 resin and can replace them in those areas where heat-resistant epoxy compounds are needed and can also be used to produce heat-resistant epoxy adhesives and coatings.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1383 - 1387"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Methods for Studying the Electrical Characteristics of the Epitaxial Layers of n/p-InxGa1 – xAs Solid Solutions for Large-Area Device Structures 研究用于大面积器件结构的 n/p-InxGa1 - xAs 固体溶液外延层电气特性的方法

IF 0.5

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701259

N. D. Platonov, A. A. Lebedev, V. L. Matukhin, A. A. Smirnov, A. F. Ivanov

{"title":"Methods for Studying the Electrical Characteristics of the Epitaxial Layers of n/p-InxGa1 – xAs Solid Solutions for Large-Area Device Structures","authors":"N. D. Platonov, A. A. Lebedev, V. L. Matukhin, A. A. Smirnov, A. F. Ivanov","doi":"10.1134/S2075113324701259","DOIUrl":"10.1134/S2075113324701259","url":null,"abstract":"A search for an optimum technique for studying the electrical characteristics of thin n/p-InxGa1–xAs semiconductor layers with different doping levels has been carried out. The primary task has been to measure the main electrical characteristics by different methods using resistivity (conductivity), majority carrier concentration, dependence of the main electrical parameters on the doping type and level, and their comparison. Using the example of the p- and n-In0.01Ga0.99As solid solutions grown by MOCVD, a technique for studying the main electrical characteristics of the epitaxial layers has been proposed, which takes into account the estimated homogeneity on large-area samples. Results obtained by different methods, including photoluminescence, contactless surface resistivity measurement, van der Pauw (Hall effect), electrochemical capacitance–voltage profiling, and in situ control, have been compared. Basing on the results obtained and comparison with the literature data, conclusions have been drawn concerning the need, sufficiency, and complementarity of the methods for controlling and studying semiconductor epitaxial structures.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1549 - 1557"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structure and Microhardness of Steel R6M5 Coating after Spraying and Subsequent Friction Treatment 喷涂和随后摩擦处理后 R6M5 钢涂层的结构和显微硬度

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701211

V. I. Kalita, D. I. Komlev, A. A. Radiuk, A. B. Mihailova

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Eudialyte of the Kola Peninsula Is a Promising Source for Obtaining Composite Zr–Ti–SiO2 Sorbents of Nonferrous Metals and Radionuclides 科拉半岛的 Eudialyte 是获得有色金属和放射性核素 Zr-Ti-SiO2 复合吸附剂的理想来源

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700898

D. V. Mayorov

{"title":"Eudialyte of the Kola Peninsula Is a Promising Source for Obtaining Composite Zr–Ti–SiO2 Sorbents of Nonferrous Metals and Radionuclides","authors":"D. V. Mayorov","doi":"10.1134/S2075113324700898","DOIUrl":"10.1134/S2075113324700898","url":null,"abstract":"Composite zirconium–titanium–silica sorbents with SiO2 content of 10–30 wt % were synthesized on the basis of products of hydrochloric acid decomposition of eudialyte concentrate and their surface modification into H+ and Na+ forms was carried out. All samples were studied by methods of chemical, X‑ray phase, Brunauer–Emmett–Teller (BET), and Barrett–Joyner–Halenda (BJH) analyses. It is shown that all obtained samples of silica-containing Zr–Ti–SiO2 sorbents are mesoporous. The pores are predominantly wedge-shaped with open ends, and pores with a diameter of 10–50 nm (~50% of the total pore volume) have the maximum volume. Based on the obtained values of the specific capacity of the adsorption monolayer of the surface of SiO2 samples and the value of Gibbs energy change (ΔG°) in the process of nitrogen sorption, it was concluded that the surface modification of synthesized Zr–Ti–SiO2 sorbents does not affect the physicochemical properties of their surfaces and the mechanism of nitrogen sorption. The sorption activity of synthesized samples towards Cu2+, Co2+, and Sr2+ ions was studied by the static method. It was found that modification of the obtained samples into the H+ form has less influence on their sorption capacity than their conversion into the Na+ form, does not depend on their SiO2 content in the range of 10–30%, and decreases in the Cu2+ → Co2+ → Sr2+ series.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1280 - 1288"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0