Inorganic Materials: Applied Research最新文献

Studying Thermophysical Properties of Glass Microspheres and Resultant Composite Materials 玻璃微球及其复合材料的热物理性质研究

IF 0.4

Inorganic Materials: Applied Research Pub Date : 2026-09-23 DOI: 10.1134/S2075113326701236

A. E. Pylaev, K. A. Knyazev, P. A. Timofeev, A. P. Malakho

{"title":"Studying Thermophysical Properties of Glass Microspheres and Resultant Composite Materials","authors":"A. E. Pylaev, K. A. Knyazev, P. A. Timofeev, A. P. Malakho","doi":"10.1134/S2075113326701236","DOIUrl":"10.1134/S2075113326701236","url":null,"abstract":"The paper examines the issues dealing with making and evaluating the properties of synthetic thermal insulation materials based on polymer matrices and glass microspheres. The aim of this study is to clarify the effect of the volume content of spherical single-shell particles on the thermophysical properties of composite materials. The thermophysical properties of a two-component system consisting of epoxy resin and glass microspheres are investigated. The volume fraction of hollow glass microspheres varies from 0 to 70%. The thermal conductivity of the composite is determined experimentally using the hot plate method. The results suggest that the thermal conductivity decreases with increasing microsphere content from 0.53 W/(m K) for pure resin to 0.4 W/(m K) for a composite with 70% volume filling. The thermal conductivity is determined and compared with theoretical predictions based on an anisotropic material model compiled using the effective medium theory approximation. The values of the thermal conductivity of microspheres and epoxy resin are calculated using the experimental graph of the change in the thermal conductivity plotted against the particle content. The results obtained can be used to design composite materials taking into account the specificity of distributed particles.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"17 5","pages":"1488 - 1493"},"PeriodicalIF":0.4,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023143","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 Thermal Treatment on the Polycarbonate Mechanical Properties and Microstructure 热处理对聚碳酸酯力学性能和组织的影响

IF 0.4

Inorganic Materials: Applied Research Pub Date : 2026-09-23 DOI: 10.1134/S2075113326700887

D. E. Chechin, L. A. Plyasunkova, P. A. Stepanov

{"title":"The Effect of Thermal Treatment on the Polycarbonate Mechanical Properties and Microstructure","authors":"D. E. Chechin, L. A. Plyasunkova, P. A. Stepanov","doi":"10.1134/S2075113326700887","DOIUrl":"10.1134/S2075113326700887","url":null,"abstract":"This study describes the changes in microstructure and mechanical properties (tensile strength and tensile modulus) of polycarbonate following thermal treatment at 145°C for 5, 10, 15, and 25 hours. Experiments involve samples made from two grades of polycarbonate sheet: domestic VTP-8/PK-EA-7.0 and imported Lexan ULG 1003. The material tensile strength is shown to increase after relieving the internal stress. When thermal treatment time gets longer tensile strength decreases. It is also noted that the material tensile modulus drops after the internal stress relaxation with subsequent stabilization irrespective of thermal treatment time. Post-thermal treatment microstructural analysis reveals orthogonal fractures caused by destruction which is indicative of the material embrittlement and reduced ability to undergo local plastic transformation. Thermal effect induces the degradation of polycarbonate microstructure, accompanied by the formation of fractures, delaminations, and crystallization sites. The spherical domains of polycarbonate macromolecular chains grow in size from 125–250 nm in the initial material to ~250–500 nm after thermal treatment for 15–25 hours.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"17 5","pages":"1196 - 1201"},"PeriodicalIF":0.4,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023146","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

Influence of Muscovite and Magnesium Spinel on the Properties of Polytetrafluoroethylene 白云母和镁尖晶石对聚四氟乙烯性能的影响

IF 0.4

Inorganic Materials: Applied Research Pub Date : 2026-09-23 DOI: 10.1134/S2075113326701054

Iu. V. Kapitonova, P. N. Tarasova, N. N. Lazareva, N. F. Timofeeva, A. A. Okhlopkova

{"title":"Influence of Muscovite and Magnesium Spinel on the Properties of Polytetrafluoroethylene","authors":"Iu. V. Kapitonova, P. N. Tarasova, N. N. Lazareva, N. F. Timofeeva, A. A. Okhlopkova","doi":"10.1134/S2075113326701054","DOIUrl":"10.1134/S2075113326701054","url":null,"abstract":"Effect of natural mica—muscovite and magnesium spinel on the structure and properties of polytetrafluoroethylene (PTFE) grade PN-90 was studied. Physical, mechanical, and tribological testing of PTFE-based composite samples, as well as structural studies, were conducted. It was found that the addition of muscovite increased the relative elongation by 43%, wear resistance by 277 times compared to the original polymer, and the coefficient of friction was 0.24–0.29. With the modifier addition of magnesium spinel, the wear resistance increased by up to 312 times, and the coefficient of friction decreased by 38%. Structural studies were carried out using scanning electron microscopy with an elemental analysis attachment and optical microscopy. It has been shown that the supramolecular structure is characterized by the formation of homogeneous structural elements, which contribute to increased deformation and strength properties and wear resistance of material. Reduction in the rate of mass wear of composites is also associated with the formation of a wear-resistant surface formed during the frictional interaction between the composite surface and the counterbody.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"17 5","pages":"1357 - 1361"},"PeriodicalIF":0.4,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023130","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

Electrodeposition of Fe–Co Alloys from a Glycinate Solution and Their Evaluation as Cathode Materials for the Hydrogen Evolution Reaction 甘氨酸溶液中Fe-Co合金的电沉积及其作为析氢反应正极材料的评价

IF 0.4

Inorganic Materials: Applied Research Pub Date : 2026-09-23 DOI: 10.1134/S2075113326701157

E. V. Chentsova, N. D. Solov’eva

{"title":"Electrodeposition of Fe–Co Alloys from a Glycinate Solution and Their Evaluation as Cathode Materials for the Hydrogen Evolution Reaction","authors":"E. V. Chentsova, N. D. Solov’eva","doi":"10.1134/S2075113326701157","DOIUrl":"10.1134/S2075113326701157","url":null,"abstract":"The influence of the composition of a glycinate electrolyte on the formation of electrodeposited Fe–Co alloys from acidic solutions on steel and brass substrates was investigated. Alloy deposition was performed by polarizing the electrodes at current densities of 10 and 20 mA/cm2. By X‑ray fluorescence, the effects of the iron-to-cobalt ion ratio in the solution, glycine (Gly) concentration, and boric acid concentration on the chemical composition of the electrodeposited Fe–Co alloys were determined. The positive effect of glycine and boric acid on the formation of uniform Fe–Co coatings with satisfactory adhesion to the substrate was demonstrated. The electrodeposited alloys were studied by X‑ray phase analysis (XRD), gravimetric analysis, and chronovoltamperometry. For the obtained Fe–Co alloys, correlations were established between the coatings’ chemical composition and their microhardness and corrosion resistance in a 3% NaCl solution. The dependence of the physicochemical properties of the Fe–Co alloys on their phase composition was shown: the highest corrosion resistance was observed for the alloy with composition 38 wt % Fe and 62 wt % Co, containing CoFe and Fe3Co7 phases. The effect of deposition current and the concentrations of iron and cobalt ions in the electrolyte on the catalytic activity of the Fe–Co coatings for the electrochemical hydrogen evolution reaction in 1 M NaOH was studied. The stability of the Fe–Co alloy performance in alkaline solution was evaluated by chronopotentiometry.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"17 5","pages":"1428 - 1433"},"PeriodicalIF":0.4,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023075","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

Phase Composition, Structure and Properties of Materials Based on Titanium Aluminides Obtained Under Free SHS-Compression Conditions 自由shs压缩条件下铝化钛材料的相组成、结构和性能

IF 0.4

Inorganic Materials: Applied Research Pub Date : 2026-09-23 DOI: 10.1134/S2075113326701194

A. D. Bazhina, A. S. Ivanov, M. S. Antipov, A. P. Chizhikov, P. M. Bazhin

{"title":"Phase Composition, Structure and Properties of Materials Based on Titanium Aluminides Obtained Under Free SHS-Compression Conditions","authors":"A. D. Bazhina, A. S. Ivanov, M. S. Antipov, A. P. Chizhikov, P. M. Bazhin","doi":"10.1134/S2075113326701194","DOIUrl":"10.1134/S2075113326701194","url":null,"abstract":"Intermetallic materials based on titanium aluminides (TiAl and Ti3Al) were produced from initial powder components of titanium and aluminum by the method of free SHS-compression, which combines combustion processes in the self-propagating high-temperature synthesis (SHS) mode and high-temperature shear deformation of the combustion products. To elucidate the mechanism of phase formation, the temperature and combustion velocity of the studied compositions were measured. It was established that under free SHS-compression conditions these parameters decrease with increasing fraction of free titanium and decreasing fraction of aluminum in the starting charge. It was shown that, owing to the early contact of the synthesized material with the press plunger during free SHS-compression, the phase-formation processes are completed. The regularities of the effect of the ratio of the powder reagents (titanium and aluminum) in the starting powder mixture on the phase composition, structure and mechanical properties (microhardness, elastic modulus, elastic recovery) are presented. It was found that the highest values of microhardness and elastic recovery correspond to a composition consisting of 74 wt % Ti3Al and 26 wt % TiAl, whereas the maximum elastic modulus corresponds to a composition of 86 wt % TiAl and 14 wt % Ti3Al.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"17 5","pages":"1460 - 1466"},"PeriodicalIF":0.4,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023205","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

Investigation of the Effect of Calcium Phosphates on the Structure and Properties of Poly(-3-Hydroxybutyrate-4-Hydroxybutyrate) 磷酸钙对聚-3-羟基丁酸酯-4-羟基丁酸酯结构和性能影响的研究

IF 0.4

Inorganic Materials: Applied Research Pub Date : 2026-09-23 DOI: 10.1134/S207511332670098X

A. Yu. Fedotov, P. M. Tyubaeva, O. V. Baranov, P. V. Lobzhanidze, I. A. Mikhailov, I. A. Varyan, V. A. Merzlikin, R. R. Romanov, S. G. Karpova, A. A. Egorov, E. M. Generalov, V. S. Komlev

{"title":"Investigation of the Effect of Calcium Phosphates on the Structure and Properties of Poly(-3-Hydroxybutyrate-4-Hydroxybutyrate)","authors":"A. Yu. Fedotov, P. M. Tyubaeva, O. V. Baranov, P. V. Lobzhanidze, I. A. Mikhailov, I. A. Varyan, V. A. Merzlikin, R. R. Romanov, S. G. Karpova, A. A. Egorov, E. M. Generalov, V. S. Komlev","doi":"10.1134/S207511332670098X","DOIUrl":"10.1134/S207511332670098X","url":null,"abstract":"Film samples based on the natural polyester poly(-3-hydroxybutyrate-4-hydroxybutyrate) (P3HB4HB) filled with two types of calcium phosphates (CP): octacalcium phosphate (OCP) and tricalcium phosphate (TCP). The effect of calcium phosphates on the microstructure, organization of the supramolecular structure of the polymer, and the mechanical properties of film materials based on P3HB4H were studied. It was found that CP in the polymer matrix affect the crystalline/amorphous phase ratio of the polymer, presumably due to the interaction of hydroxyl and phosphate groups of CP with the carboxyl and hydroxyl groups of P3HB4HB. Composites containing 1 wt % OCP and 5 wt % TCP can demonstrate the formation of more perfect crystalline structures, since calcium phosphates act as nucleating particles during polymer crystallization. With an increase in the concentration of calcium phosphates, the strength characteristics of the composites are significantly reduced, although the packing density of the amorphous phase decreases due to the introduction of CP.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"17 5","pages":"1309 - 1318"},"PeriodicalIF":0.4,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023230","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

Rubber-Based Flexible Polymer Composite for Radiation Protection with Rare Earth Metal Oxides 含稀土金属氧化物的橡胶基柔性辐射防护聚合物复合材料

IF 0.4

Inorganic Materials: Applied Research Pub Date : 2026-09-23 DOI: 10.1134/S2075113326700929

N. I. Cherkashina, V. I. Pavlenko, G. G. Bondarenko, R. V. Sidelnikov

{"title":"Rubber-Based Flexible Polymer Composite for Radiation Protection with Rare Earth Metal Oxides","authors":"N. I. Cherkashina, V. I. Pavlenko, G. G. Bondarenko, R. V. Sidelnikov","doi":"10.1134/S2075113326700929","DOIUrl":"10.1134/S2075113326700929","url":null,"abstract":"The description is given to the synthesis of a flexible polymer composite for radiation protection based on a rubber matrix and rare-earth metal oxides (Dy2O3 and Gd2O3). The physico-mechanical parameters are established for the compositions with dysprosium oxide as follows: the density ranging from 1.31 to 2.44 g/cm3, tensile strength is staying between 6.06 and 1.72 MPa. In contrast, compositions with gadolinium oxide have a density of 1.27–2.40 g/cm3, tensile strength being 5.81–0.93 MPa. The microstructure of the composite surface and cross-section is examined in detail revealing uniform filler distribution. However, adding gadolinium oxide promotes forming agglomerates up to 50 μm in size. Based on experimental data obtained after exposing composite samples to gamma radiation with energies E(207Bi) = 0.570 MeV; E(137Cs) = 0.662 MeV; E(60Co) = 1.252 MeV), the linear attenuation coefficients (0.251; 0.235; 0.201 cm–1 for KDy60 and 0.226; 0.214; 0.176 cm–1 for KGd60) and mass attenuation coefficients (0.102; 0.096; 0.082 cm2/g for KDy60 and 0.094; 0.089; 0.073 cm2/g for KGd60) are calculated. Increasing the filler content enhances radiation-shielding properties, with dysprosium oxide compositions demonstrating superior efficiency.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"17 5","pages":"1247 - 1257"},"PeriodicalIF":0.4,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023158","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

SHS of Silicon Carbide in Nitrogen Using Carbon Fibers as a Carbon Source 碳化硅在氮中以碳纤维为碳源的SHS

IF 0.4

Inorganic Materials: Applied Research Pub Date : 2026-09-23 DOI: 10.1134/S2075113326701145

V. V. Zakorzhevsky, M. I. Alymov, N. I. Mukhina, N. S. Shibakova, M. Yu. Senkovenko

引用次数: 0

Use of Friction Stir Processing to Produce the Composite Material BrAMts9-2/W 用搅拌摩擦法生产复合材料BrAMts9-2/W

IF 0.4

Inorganic Materials: Applied Research Pub Date : 2026-09-23 DOI: 10.1134/S207511332670111X

A. M. Cheremnov, A. V. Chumaevskii, N. L. Savchenko, S. Yu. Tarasov, A. P. Zykova, D. A. Gurianov, E. A. Kolubaev

{"title":"Use of Friction Stir Processing to Produce the Composite Material BrAMts9-2/W","authors":"A. M. Cheremnov, A. V. Chumaevskii, N. L. Savchenko, S. Yu. Tarasov, A. P. Zykova, D. A. Gurianov, E. A. Kolubaev","doi":"10.1134/S207511332670111X","DOIUrl":"10.1134/S207511332670111X","url":null,"abstract":"Samples of BrAMts9-2/W composite materials containing 5, 10 and 15 vol % tungsten were investigated; the samples were produced by multi‑pass friction stir processing (FSP). It was found that a single FSP pass does not produce a defect‑free structure with a homogeneous tungsten distribution, whereas four passes achieve a uniform structure in the stir zone. As a result of the treatment, an intermetallic γ2‑Al4Cu9 phase formed in all studied samples. Increasing the tungsten content led to a higher fraction of the γ2 phase, which is associated with reduced thermal conductivity of the composite material. This caused decomposition of the β‑Cu3Al phase, characteristic of BrAMts9‑2, into an α Cu solid solution and the γ2 phase. Microhardness values increase with increasing W content, especially at 15 vol %, indicating material strengthening. However, increasing tungsten content resulted in decreased ultimate tensile strength, yield strength and elongation. The study demonstrates the promise of copper–tungsten system composites and highlights the need to balance strengthening and retention of ductility when designing such materials.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"17 5","pages":"1401 - 1408"},"PeriodicalIF":0.4,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023204","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

Oxide Layers Having Segmentation Fractures in Thermal Barrier Coatings: Review and Analysis 热障涂层中具有分段断裂的氧化层：综述与分析

IF 0.4

Inorganic Materials: Applied Research Pub Date : 2026-09-23 DOI: 10.1134/S2075113326700814

V. I. Kalita, D. I. Komlev, A. A. Radyuk

{"title":"Oxide Layers Having Segmentation Fractures in Thermal Barrier Coatings: Review and Analysis","authors":"V. I. Kalita, D. I. Komlev, A. A. Radyuk","doi":"10.1134/S2075113326700814","DOIUrl":"10.1134/S2075113326700814","url":null,"abstract":"Currently, oxide layers in thermal barrier coatings are formed of defective structures made of pores or segmentation fractures oriented perpendicular to the substrate. These structures relieve residual stresses during thermal cycling. The three following engineering criteria are used to assess probability of generating segmentation fractures in thermal barrier coatings using plasma spraying: 1) the specific enthalpy of the plasma jet Neff/Q which is the ratio of the effective power of the plasma torch (Neff) to the flow rate of plasma-generating gases (Q); 2) Neff/(Qd)—the ratio of the specific enthalpy of the plasma jet to the average particle size of the sprayed powder (d); and 3) the linear energy, e.g., the ratio (NeffK)/(VB)—where K is the coefficient determining the residual effective power at the spraying distance, V is the traverse speed of the plasma torch relative to the substrate, B is the coating width in one pass. The second and third criteria determine the temperature of the sprayed particles and the temperature of the coating in the spray footprint. These two temperatures control the cohesive strength and the ability to generate segmentation fractures. The published data is processed to derive equations describing the dependence of the density of segmentation fractures on the values of criteria suggested, on the substrate temperature, and on the average size of the sprayed particles. In a first approximation, the proposed ratios Neff/(Qd) and (Neff K)/(VB) can be used to select spraying modes at the initial stage of experimental planning. For example, when the second and the third criteria are increased to 400 GJ/(kg m) and 350 kJ/m2 respectively, the average density of segmentation fractures increases to 5 per mm of coating length.","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":"17 5","pages":"1159 - 1172"},"PeriodicalIF":0.4,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023265","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