Inorganic Materials: Applied Research最新文献_第5页

Chemical Stability of Fine-Grained Ceramics Based on Nd0.33Zr2(PO4)3 Phosphate with Kosnarite Structure at Elevated Temperatures 基于钕0.33Zr2(PO4)3磷酸盐的细粒陶瓷在高温下的化学稳定性

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700862

L. S. Alekseeva, A. V. Nokhrin, A. I. Orlova, M. S. Boldin, A. V. Voronin, A. A. Murashov, V. N. Chuvil’deev

{"title":"Chemical Stability of Fine-Grained Ceramics Based on Nd0.33Zr2(PO4)3 Phosphate with Kosnarite Structure at Elevated Temperatures","authors":"L. S. Alekseeva, A. V. Nokhrin, A. I. Orlova, M. S. Boldin, A. V. Voronin, A. A. Murashov, V. N. Chuvil’deev","doi":"10.1134/S2075113324700862","DOIUrl":"10.1134/S2075113324700862","url":null,"abstract":"The chemical stability of Nd0.33Zr2(PO4)3 fine-grained ceramics, which can be used for immobilization of rare earth elements (REE) that are part of high-level waste was studied. Single-phase Nd0.33Zr2(PO4)3 submicron powders with the structure of the mineral kosnarite were prepared by colloid-chemical synthesis. Powders were prepared by successive annealing at 600, 800, and 900°C for 6 h at each stage. Nd0.33Zr2(PO4)3 ceramic was Nd0.33Zr2(PO4)3 ceramics was produced using spark plasma sintering method (SPS). The relative density of the ceramic was 89.9%; the average grain size was 5–20 μm. The chemical stability of the ceramic in the static mode at 90°C in distilled water and mineral water, as well as in acidic media (0.1 M HCl) and alkaline media (0.01 M NaOH), was studied. The ceramics have high hydrolytic stability. The influence of the contact medium on the rate and mechanism of Nd leaching from the surface of Nd0.33Zr2(PO4)3 fine-grained ceramic samples was studied. The de Groot-van der Sloot model was used to analyze the resulting leaching rate Ri against time t of experiment. Nd leaching occurs by dissociation of Nd from the ceramic surface in acidic medium, diffusion from the inner layers in alkaline medium and mineral water, and dissolution of the ceramic surface layer in distilled water.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1256 - 1264"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142411025","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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The Structure and Mechanical Properties of Ti–(36–40)Zr–9Ta (at %) Alloys for Medical Purposes 医用 Ti-(36-40)Zr-9Ta (%) 合金的结构和机械性能

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700941

M. A. Volchikhina, S. V. Konushkin, S. A. Mikhlik, K. V. Sergienko, M. A. Kaplan, A. D. Gorbenko, T. M. Sevostyanova, A. G. Kolmakov, M. A. Sevostyanov

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The Influence of Additive Migration on the Surface Properties of Polypropylene-Based Films during Modification in Low-Temperature Corona Discharge Plasma 低温电晕放电等离子体改性过程中添加剂迁移对聚丙烯基薄膜表面特性的影响

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701168

A. M. Lyakhovich, E. M. Galikhanov, O. A. Bikeev, V. L. Vorobyev

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Evaluation of the Biological Effect of Medical Devices: General Requirements for Biological Safety (Analytical Review) 医疗器械生物效应评估：生物安全性的一般要求（分析评论）

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700916

V. I. Sevastianov, N. V. Perova, E. V. Arzumanyants, N. M. Perova, N. V. Kaminskaya, I. A. Dovzhik

引用次数: 0

Influence of Service Life on Physical and Mechanical Characteristics of Polyethylene Pipes 使用寿命对聚乙烯管道物理和机械特性的影响

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701041

O. Yu. Elagina, A. V. Buryakin, N. S. Poches

{"title":"Influence of Service Life on Physical and Mechanical Characteristics of Polyethylene Pipes","authors":"O. Yu. Elagina, A. V. Buryakin, N. S. Poches","doi":"10.1134/S2075113324701041","DOIUrl":"10.1134/S2075113324701041","url":null,"abstract":"An experimental evaluation of the decrease in actual physical and mechanical characteristics of low pressure polyethylene (HDPE) pipes depending on the duration and conditions of their operation has been conducted. To assess the impact of operational factors on the pipe characteristics, the following parameters were determined: tensile elongation and tensile strength, thermal stability (induction period of oxidation (IPO) of the material), and degree of crystallinity. It was found that, after prolonged operation of HDPE pipes compared to the initial normative values, the most significantly affected parameters are the tensile elongation and the induction period of oxidation. Moreover, the changes in tensile elongation and IPO parameters have a similar nature in terms of the loss of properties, indicating a correlation between them. The most sensitive indicators for predicting the service life of HDPE pipes are the tensile elongation and the induction period of oxidation. On the basis of the data obtained, it seems promising to monitor the IPO value when determining the technical condition of polyethylene pipes. A calculated forecast of the service life of polyethylene pipes based on reaching their ultimate state has been performed.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1388 - 1393"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410987","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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Effect of Fe3O4 Iron Oxide Nanoparticles on the Structure and Thermal Properties of High-Density Polyethylene-Based Nanocomposites Fe3O4 氧化铁纳米粒子对高密度聚乙烯基纳米复合材料结构和热性能的影响

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701016

M. N. Bayramov, A. A. Nabiev, N. Sh. Aliyev, M. A. Nuriev

引用次数: 0

Synthesis of Carbon Nanotubes Using Microwave Radiation to Modify Elastomer with Improved Electrical and Thermal Conductivity 利用微波辐射合成碳纳米管，改性弹性体以提高导电性和导热性

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701181

A. V. Shchegolkov, A. V. Shchegolkov, M. A. Chumak, A. V. Nashchekin, K. V. Likhachev

{"title":"Synthesis of Carbon Nanotubes Using Microwave Radiation to Modify Elastomer with Improved Electrical and Thermal Conductivity","authors":"A. V. Shchegolkov, A. V. Shchegolkov, M. A. Chumak, A. V. Nashchekin, K. V. Likhachev","doi":"10.1134/S2075113324701181","DOIUrl":"10.1134/S2075113324701181","url":null,"abstract":"The paper presents a method of microwave influence on ferrocene C10H10Fe and graphite to obtain multilayer carbon nanotubes (MWCNTs)—designed to improve the electrical and thermophysical properties of Organosilicon elastomer (Silagerm 8020). Diagnostics and characterization of the synthesized MWCNTs were carried out by energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD), scanning electron microscopy (SEM), and Raman spectroscopy. According to SEM data, it follows that the morphology of the synthesized MWCNTs has the form of filamentous formations intertwined in bundles with a diameter of individual MWCNTs from 40 to 60 nm and a length up to several microns. At the same time, the surface of most of the MWCNTs is covered with a continuous layer of iron (Fe). The EDX method also confirmed the Fe and oxygen content on the surface of the MWCNTs. The XRD method identified the presence of Fe in combination with carbon in the form of Fe3C iron carbide and pure Fe iron at 44.7°. The compound Fe3C is also referred to the active phase of Fe allowing the synthesis of MWCNTs. By increasing the concentration of MWCNTs in the elastomer, an increase in thermal conductivity with percolation transition was achieved at a concentration of 8% MWCNTs. The maximum thermal conductivity of the nanomodified elastomer was 0.48 W/(m °C), which corresponded to the mass concentration of MWCNTs equal to 8 wt %. At the same time, the electrical conductivity of the composite, when the MWCNT concentration was changed from 1 to 8%, increased in the range from 4 × 10–5 to 2.4 S cm–1 and is also due to the percolation of MWCNTs in the elastomer matrix.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1499 - 1507"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410919","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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Formation of Hydrophobic Coatings on the Surface of Track-Etched Membranes Using Magnetron Sputtering of Polymers in Vacuum 利用真空中的磁控溅射聚合物在刻痕膜表面形成疏水涂层

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701156

L. I. Kravets, V. A. Altynov, R. V. Gainutdinov, A. B. Gilman, V. Satulu, B. Mitu, G. Dinescu

{"title":"Formation of Hydrophobic Coatings on the Surface of Track-Etched Membranes Using Magnetron Sputtering of Polymers in Vacuum","authors":"L. I. Kravets, V. A. Altynov, R. V. Gainutdinov, A. B. Gilman, V. Satulu, B. Mitu, G. Dinescu","doi":"10.1134/S2075113324701156","DOIUrl":"10.1134/S2075113324701156","url":null,"abstract":"The surface properties and chemical structure of nanosized coatings deposited on the surface of polyethylene terephthalate track-etched membranes by magnetron sputtering of ultrahigh molecular weight polyethylene and polytetrafluoroethylene in a vacuum have been studied. Application of coatings leads to hydrophobization of surface of the original membranes, the degree of which depends on the type of polymer used for sputtering and the coating thickness. The use of this modification method causes smoothing of structural inhomogeneities of the surface layer of membranes, which is explained by the deposition of coatings in the pore channels at a certain depth from the inlet and the overlap of pores on the surface of modified membranes. In addition, the deposition of coatings on the surface of track-etched membranes leads to a change in the shape of pores. The pore diameter decreases significantly on the modified side and remains unchanged on the untreated side of the membrane, while the membrane pores acquire an asymmetrical (conical) shape. The study of chemical structure of coatings using X-ray photoelectron spectroscopy showed that they contain oxygen-containing functional groups owing to oxidation of the polymer matrix. The developed composite membranes can be used in membrane distillation processes for seawater desalination.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1473 - 1482"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142411036","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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Optimization of the Mineralization Process of Polycaprolactone Fibers with Vaterite Microparticles 用 Vaterite 微颗粒优化聚己内酯纤维的矿化过程

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Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700953

N. V. Koronevskiy, O. A. Inozemtseva, B. V. Sergeeva, M. A. Popova, A. A. Andreev, S. A. Sergeev

{"title":"Optimization of the Mineralization Process of Polycaprolactone Fibers with Vaterite Microparticles","authors":"N. V. Koronevskiy, O. A. Inozemtseva, B. V. Sergeeva, M. A. Popova, A. A. Andreev, S. A. Sergeev","doi":"10.1134/S2075113324700953","DOIUrl":"10.1134/S2075113324700953","url":null,"abstract":"Optimization of the process of mineralization of polycaprolactone fibers with vaterite microparticles by varying the concentrations of the working solutions of salts, calcium chloride and sodium carbonate, is proposed. The optimum parameters of mineralization of polycaprolactone fibers with calcium carbonate particles in the vaterite polymorphic modification are found. The effect of the concentrations of the working solutions of the salts and time of ultrasonic treatment on the monodispersity of CaCO3 microparticles present in the composition of the synthesized coating is studied. The concentrations of the working solutions of the salts are varied from 0.25 to 1 mol and the time of US treatment is varied from 30 to 90 s. The obtained tissue-engineered scaffolds can find application in regenerative medicine and for local and prolonged release of drugs. For their successful use for medical purposes, special requirements must be met, namely, the minimum possible polydispersity and the existence of calcium carbonate microparticles in the vaterite polymorphic modification.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1329 - 1335"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410941","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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Features of Powder Synthesis in ZnO–SnO2 System 氧化锌-二氧化锡体系粉末合成的特点

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Inorganic Materials: Applied Research Pub Date : 2024-08-08 DOI: 10.1134/S207511332470045X

V. V. Anisimov, N. A. Makarov, E. K. Zabaluev

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