Inorganic Materials: Applied Research最新文献

Solid Solutions Based on Bismuth Telluride Doped with Graphene 基于掺杂石墨烯的碲化铋固体溶液

IF 0.5

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700849

L. D. Ivanova, Yu. V. Granatkina, I. Yu. Nikhezina, A. G. Malchev, D. S. Nikulin, M. Y. Shtern, A. R. Erofeeva

{"title":"Solid Solutions Based on Bismuth Telluride Doped with Graphene","authors":"L. D. Ivanova, Yu. V. Granatkina, I. Yu. Nikhezina, A. G. Malchev, D. S. Nikulin, M. Y. Shtern, A. R. Erofeeva","doi":"10.1134/S2075113324700849","DOIUrl":"10.1134/S2075113324700849","url":null,"abstract":"The microstructure and thermoelectric properties of materials based on p-type Bi0.5Sb1.5Te3 and n-type Bi2Te2.4Se0.6 solid solutions doped with graphene are studied. The samples are obtained by spark plasma sintering of powders prepared by melt spinning and crushed in a ball mill together with graphene plates, which are introduced in an amount of 0.05, 0.1, and 0.15 wt %. Scanning electron microscopy is used to study the composition and microstructure. The samples with p-type conductivity have a fine-grained (on the order of hundreds of nanometers) structure with microsized tellurium-based eutectic inclusions. The samples with n-type conductivity contain grains with melted edges. The thermoelectric parameters are measured: Seebeck coefficient, electrical conductivity, thermal conductivity at room temperature and in the temperature range from 100 to 700 K; and the thermoelectric figure of merit is calculated. When adding 0.15 wt % of graphene plates to a p-type solid solution, the maximum thermoelectric figure of merit (ZT)max of the material increases by 13% and is equal to 1.3 at 420 K. For a sample with n-type conductivity doped with graphene, the highest value of (ZT)max = 0.83 at 470 K is obtained by adding 0.1 wt % of graphene plates.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1240 - 1248"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410989","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

Plasma Chemical Modification of Glass Silica Based on Waste from the Enrichment of Ferruginous Quartzite KMA 基于铁矿石英岩富集废料 KMA 的等离子体化学改性玻璃硅石

IF 0.5

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701144

V. S. Bessmertny, N. M. Zdorenko, M. A. Bondarenko, A. V. Cherkasov, A. V. Makarov, N. M. Burlakov

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Synthesis of Complex Oxide Ceramics in a Fast Electron Beam 在快速电子束中合成复杂氧化物陶瓷

IF 0.5

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S207511332470117X

S. A. Ghyngazov, I. P. Vasil’ev, V. A. Boltueva

{"title":"Synthesis of Complex Oxide Ceramics in a Fast Electron Beam","authors":"S. A. Ghyngazov, I. P. Vasil’ev, V. A. Boltueva","doi":"10.1134/S207511332470117X","DOIUrl":"10.1134/S207511332470117X","url":null,"abstract":"Synthesis of complex oxide ceramic materials in a fast electron beam is discussed. Powder reagents, along with irradiation, are exposed to air currents, which prevent gases and particles from entering the accelerator. To keep ultrafine powder mixtures in the irradiation zone, they were granulated. Two methods for granulation of an ultrafine powder with the composition 80 wt % Al2O3 + 20 wt % (ZrO2–3Y2O3) were used. The first method involved moistening, drying, and subsequent sifting through a coarse sieve. In the second method, the powder mixture was supplemented with a binding additive, which gave a stable volumetric shape to the sample. For the granulation methods used, the features of short-term heating of the oxide powders in air with a fast electron beam with energy of 2 MeV and the zirconia corundum synthesis under these conditions were studied. Granulation of the ultrafine powder made it possible to minimize its weight loss under irradiation. During irradiation of the powder mass, the latter was locally melted, which was accompanied by an intense gas release leading to the formation of hollow ceramic droplets. It has been shown by X-ray diffraction analysis that the oxides do not mutually dissolve in the droplet walls and the recrystallization processes are accompanied by the formation of cubic aluminum oxide microcrystallites and the transition of aluminum oxide in them from the monoclinic to corundum phase. The presence of microcrystallites of evenly distributed fine zirconia dioxide particles in the intergrain spacings indicates the synthesis of zirconia corundum under irradiation. At the same time, the phase composition of zirconium dioxide after irradiation does not change as compared with the initial powder.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1490 - 1498"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142411043","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

Ceramic Materials Based on a Complex Oxide Solid Solution of a Tetragonal Form of Zirconia: Application in Prosthetic Dentistry 基于四方氧化锆复合氧化物固溶体的陶瓷材料：在修复牙科中的应用

IF 0.5

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700886

L. I. Podzorova, A. A. Il’icheva, N. A. Mikhayilina, O. I. Pen’kova, O. S. Antonova, I. Yu. Lebedenko, D. A. Shumskaya

引用次数: 0

Nickel-Containing Nanocomposites Based on Isotactic Polypropylene and High-Pressure Polyethylene 基于异策聚丙烯和高压聚乙烯的含镍纳米复合材料

IF 0.5

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700989

N. I. Kurbanova, S. K. Ragimova, T. M. Guliyeva

引用次数: 0

Thermal Conductivity of YAG:Nd + Mo Ceramic Composites Obtained by Spark Plasma Sintering 火花等离子烧结法获得的 YAG:Nd + Mo 陶瓷复合材料的导热性

IF 0.5

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701090

L. S. Alekseeva, A. V. Nokhrin, A. I. Orlova, M. S. Boldin, E. A. Lantcev, A. A. Murashov, V. N. Chuvil’deev, N. Yu. Tabachkova, N. V. Sakharov, A. A. Moskvichev

{"title":"Thermal Conductivity of YAG:Nd + Mo Ceramic Composites Obtained by Spark Plasma Sintering","authors":"L. S. Alekseeva, A. V. Nokhrin, A. I. Orlova, M. S. Boldin, E. A. Lantcev, A. A. Murashov, V. N. Chuvil’deev, N. Yu. Tabachkova, N. V. Sakharov, A. A. Moskvichev","doi":"10.1134/S2075113324701090","DOIUrl":"10.1134/S2075113324701090","url":null,"abstract":"The microstructure and thermophysical properties (specific heat capacity, thermal diffusivity, thermal conductivity) of fine-grained ceramic composites based on yttrium-aluminum garnet Y2.5Nd0.5Al5O12 (YAG:Nd) with different molybdenum contents (10, 20 and 40 vol %) were studied. Submicron garnet powders of Y2.5Nd0.5Al5O12 were obtained by the coprecipitation method; YAG:Nd + Mo powder compositions with the YAG:Nd core–Mo shell structure were obtained by deposition of molybdenum onto the surface of garnet particles; samples of ceramic composites were obtained by the method of spark plasma sintering (SPS). Electron microscopy and X-ray phase analysis were used to study the microstructure and phase composition of the composites. YAG:Nd + Mo composites have a high relative density (98.1–99%) and a uniform fine-grained microstructure with a garnet grain size of 2–3 μm. Sintered YAG:Nd + Mo composites at room and elevated temperatures (up to 1100°C) have a high thermal conductivity coefficient exceeding the thermal conductivity coefficient of uranium dioxide UO2, which allows using these materials as heat-resistant inert fuel matrices. It was shown that higher thermal conductivity of composites is ensured at a content of at least 20 vol % Mo. In composites with the addition of 20 and 40% Mo, the thermal conductivity coefficient at 1100°C reaches 7.0 and 8.8 W m–1 K–1, respectively.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1429 - 1436"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410832","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

Highly Porous Ceramic Materials Based on Coarse-Dispersed αAl2O3 基于粗分散 αAl2O3 的高多孔陶瓷材料

IF 0.5

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701235

R. D. Kapustin, V. I. Uvarov, A. O. Kirillov, A. S. Fedotov, D. Yu. Grachev, M. V. Tsodikov

{"title":"Highly Porous Ceramic Materials Based on Coarse-Dispersed αAl2O3","authors":"R. D. Kapustin, V. I. Uvarov, A. O. Kirillov, A. S. Fedotov, D. Yu. Grachev, M. V. Tsodikov","doi":"10.1134/S2075113324701235","DOIUrl":"10.1134/S2075113324701235","url":null,"abstract":"Synthesis of highly porous ceramic materials for catalytic converters based on coarse-dispersed αAl2O3 using a combination of compaction and thermochemical synthesis with the participation of active ultrafine binders is carried out. Using X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM), it is established that the morphology of the synthesized material simultaneously includes large pores between filler particles (dominant αAl2O3 phase) and submicron pores in transboundary regions that appeared during the processes of liquid-phase sintering and gas evolution. A significant amount of indialite (Mg2Al4Si5O18) and spinel (MgAl2O4) formed as a result of thermochemical synthesis on surfaces and in the gaps between coarse-dispersed particles is revealed. The dominant pore size (according to the volume of mercury intrusion) is from 20 to 60 μm (about 73%), as well as pores with size from 0.4 to 2 μm (about 6%).The average pore size is about 9 μm. Highly porous materials with these characteristics of the pore space can be effectively used after modification as catalytic converters for the dehydrogenation of alkyl aromatic hydrocarbons with large molecular sizes (about 400 nm) with a long mean free path on the order of ~3–4 μm.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1537 - 1543"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410834","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

Experimental Assessment of the Adequacy of Numerical Modeling of the Interlayer Crack Resistance of a Laminate Glass-Epoxy Composite under Combined Loading Mode I/II 对 I/II 组合加载模式下玻璃-环氧层压复合材料层间抗裂性数值模型充分性的实验评估

IF 0.5

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324701260

P. G. Babaevskiy, N. V. Salienko, A. A. Shatalin

{"title":"Experimental Assessment of the Adequacy of Numerical Modeling of the Interlayer Crack Resistance of a Laminate Glass-Epoxy Composite under Combined Loading Mode I/II","authors":"P. G. Babaevskiy, N. V. Salienko, A. A. Shatalin","doi":"10.1134/S2075113324701260","DOIUrl":"10.1134/S2075113324701260","url":null,"abstract":"Abstract—The reliability of numerical modeling of crack growth in a laminate glass-epoxy composite under combined loading by opening (mode I) and shear (mode II) of an interlaminar crack was assessed. According to experimentally determined standard (DCB and ENF) and nonstandard (SLB and OLB) methods for the values of interlayer crack resistance parameters under individual and combined loading modes I and II, the exponent in the Benzeggagh-Kenane equation was calculated as a material constant of a laminated epoxy glass composite. Using this parameter and using the ANSYS application software package within the framework of linear elastic fracture mechanics and the virtual crack closure method, the numerical finite element modeling of interlaminar crack resistance of SLB and OLB type specimens was carried out under a combined loading mode with a different fraction of modes. With an optimal number of elements in a finite element mesh corresponding to a given length of the crack growth trajectory, the numerical modeling provides sufficient accuracy in calculating the limit load of the beginning of crack growth with a minimum amount of calculations and good agreement between the experimentally determined and calculated crack resistance parameters.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1558 - 1564"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410836","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

Conglomeration of Elemental Powders of High-Entropy 30Fe–30Cr–20Ni–10Mo–10W Alloy for Additive Manufacturing 用于增材制造的高熵 30Fe-30Cr-20Ni-10Mo-10W 合金元素粉末聚合体

IF 0.5

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700990

A. Yu. Ivannikov, A. B. Ankudinov, A. B. Mikhailova, B. A. Rumyantsev, A. V. Mikhailova, V. A. Zelensky

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Structure and Properties of the SiO2–Cr2O3 Coatings Obtained by Pulsed Magnetron Sputtering onto a ZrO2 Ceramic Substrate 通过脉冲磁控溅射在 ZrO2 陶瓷基底上获得的 SiO2-Cr2O3 涂层的结构和特性

IF 0.5

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI: 10.1134/S2075113324700904

R. S. Nebogatikov, S. Ya. Pichidze

{"title":"Structure and Properties of the SiO2–Cr2O3 Coatings Obtained by Pulsed Magnetron Sputtering onto a ZrO2 Ceramic Substrate","authors":"R. S. Nebogatikov, S. Ya. Pichidze","doi":"10.1134/S2075113324700904","DOIUrl":"10.1134/S2075113324700904","url":null,"abstract":"A technique for obtaining SiO2–Cr2O3 coatings on a Y-TZP (ZrO2 stabilized by Y2O3) zirconia ceramic substrate is proposed. The coating has been created in three stages: (i) forming a SiO2 adhesion layer by applying a 5% solution of 3-aminopropyltriethoxysilane alcohol onto the ceramic substrate surface with the subsequent heat treatment at 450 ± 5°C for 30 min, (ii) deposition of Cr (purity 99.9%) by pulse magnetron sputtering onto the prepared ceramic substrate with the formed SiO2 layer, and (iii) diffusion oxidation of Cr deposited onto the ceramic substrate to Cr2O3 in a muffle furnace at a temperature of 450 ± 5°C for 30 min. The mechanical characteristics of the coating have been examined depending on the preliminary and finishing operations (abrasive-jet machining and polishing). Samples with the coating of a submicron thickness of 150 ± 20 nm having the lamellar nanostructure, an open porosity value of 1.3%, a microhardness of 2000 HV, roughness Ra of 0.32–0.63, a friction coefficient of 0.175, and an abrasion resistance against loadings 184% higher than for pure zirconia ceramics have been obtained.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"15 5","pages":"1289 - 1299"},"PeriodicalIF":0.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410986","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