S. S. Manokhin, V. N. Maksimenko, A. Yu. Tokmacheva-Kolobova, A. E. Ligachev, I. V. Sedov, Yu. R. Kolobov
{"title":"Patterns of Structural and Phase Transformations in Membranes Made of Pd–40% Cu Alloy under Hydrogen Separation Conditions","authors":"S. S. Manokhin, V. N. Maksimenko, A. Yu. Tokmacheva-Kolobova, A. E. Ligachev, I. V. Sedov, Yu. R. Kolobov","doi":"10.1134/S0020168526700299","DOIUrl":"10.1134/S0020168526700299","url":null,"abstract":"<p>The paper presents the results of studies of the structural-phase state and chemical composition of a membrane made of Pd–40 wt % Cu (Pd–52.8 at % Cu) alloy after its operation in an experimental hydrogen separation reactor for 20 hours at a temperature of 473–523 K. The methods of scanning and transmission electron microscopy, X-ray phase analysis and energy-dispersive spectroscopy A study of the evolution of the structural-phase state of the alloy under study was conducted with an analysis of the mechanisms of the observed processes.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"61 7-15","pages":"564 - 571"},"PeriodicalIF":0.7,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147968121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. A. Belogorlov, S. A. Bortnikova, A. G. Akopdzhanov, N. L. Shimanovskii
{"title":"On the Possibility of Using Nanoporous Materials Based on Silica Gels for Drug Delivery","authors":"A. A. Belogorlov, S. A. Bortnikova, A. G. Akopdzhanov, N. L. Shimanovskii","doi":"10.1134/S0020168526700251","DOIUrl":"10.1134/S0020168526700251","url":null,"abstract":"<p>The paper presents the results of a study of the outflow of non-wetting liquids: distilled water (water) and 0.9% aqueous sodium chloride solution (saline) from hydrophobic nanoporous materials based on silica gels Fluka 100 C18 and Fluka 100 C8. The studies were carried out at waiting times of up to 10 000 s in a temperature range from 20 up to 60°C. It is shown that the specific rate of outflow of non-wetting liquids from these materials depends on the studied system, the characteristics of the material, the waiting time, the temperature and the degree of initial filling of the nanoporous material. The obtained results allow us to consider this type of nanoporous materials as promising for the delivery of prolonged-release drugs with controlled flow rate.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"61 7-15","pages":"537 - 541"},"PeriodicalIF":0.7,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147968052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. V. Smirnov, A. Yu. Teterina, P. V. Smirnova, M. A. Shlykov, V. S. Komlev
{"title":"Effect of Mg2+, Ba2+, and Sr2+ Cation Substitution on Phase Composition and Crystal Structure of Octacalcium Phosphate","authors":"I. V. Smirnov, A. Yu. Teterina, P. V. Smirnova, M. A. Shlykov, V. S. Komlev","doi":"10.1134/S0020168526700202","DOIUrl":"10.1134/S0020168526700202","url":null,"abstract":"<p>A low-temperature synthesis method for calcium phosphate compounds—specifically, octacalcium phosphate (OCP) doped with magnesium, strontium, and barium cations at substitution degrees ranging up to 20 mol %—was developed in this study. The conditions for the phase transformation of α-tricalcium phosphate (α-TCP) into dicalcium phosphate dihydrate (DCPD, CaHPO<sub>4</sub>·2H<sub>2</sub>O), followed by its hydrolysis to octacalcium phosphate (OCP, Ca<sub>8</sub>H<sub>2</sub>(PO<sub>4</sub>)<sub>6</sub>·5H<sub>2</sub>O) in buffer solutions (sodium acetate, L-glutamic acid) at near-physiological temperatures (35–40°C), were established. Doping with strontium, barium, and magnesium cations (Sr<sup>2+</sup>, Ba<sup>2+</sup>, and Mg<sup>2+</sup>) was performed during the transformation stages α-TCP → DCPD and DCPD → OCP by adding the corresponding metal nitrates to the reaction media. It was found that strontium cations incorporate most effectively into the OCP structure, while barium cation introduction (above 10 mol %) leads to the formation of impurity phases (barium hydrogen phosphate) and reduced crystallinity. Doping with magnesium cations inhibits phase transformations, resulting in highly defective crystalline structures at concentrations up to 10 mol %. The phase composition, structure, morphology, and chemical composition of the synthesized powders were characterized using X‑ray diffraction, infrared spectroscopy, scanning and transmission electron microscopy, and X‑ray fluorescence analysis. The developed low-temperature method enables the controlled synthesis of cation-substituted calcium phosphates, which is promising for the creation of bioactive materials for bone tissue regeneration.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"61 7-15","pages":"475 - 482"},"PeriodicalIF":0.7,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147968054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Impact of Cadmium Doping on the Anodic Behavior of Aluminum Alloy AlBe1 in NaCl Electrolyte: Corrosion Rate. Reduction and Potential Shifts","authors":"M. Z. Kurbonova, I. A. Emomov, I. N. Ganiev","doi":"10.1134/S0020168526700342","DOIUrl":"10.1134/S0020168526700342","url":null,"abstract":"<p>This study presents the findings on the anodic behavior of cadmium-doped aluminum alloy (AlBe1) in a NaCl electrolyte. The results reveal that the addition of cadmium in concentrations ranging from 0.05 to 1.0 wt % leads to a notable reduction in the rate of anodic corrosion of the original aluminum alloy (AlBe1), with an approximate decrease of 30–50%. Moreover, the research demonstrates that the incorporation of cadmium in the aluminum alloy shifts the potentials associated with free corrosion, pitting formation, and re-passivation towards positive values. These findings suggest that the proposed aluminum alloy AlBe1 compositions, containing cadmium, hold promise as anode coatings for safeguarding metal structures across diverse applications, providing effective corrosion protection.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"61 7-15","pages":"605 - 611"},"PeriodicalIF":0.7,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147968056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. M. Safiulina, A. V. Lizunov, E. I. Goryunov, V. K. Brel, G. V. Kostikova, V. I. Zhilov, S. M. Aksenov, I. G. Tananaev
{"title":"On the Extraction of Trivalent f-Elements from High-Level Waste Containing Derivatives of (2-Carbamoylethyl) Diphenylphosphine Oxides","authors":"A. M. Safiulina, A. V. Lizunov, E. I. Goryunov, V. K. Brel, G. V. Kostikova, V. I. Zhilov, S. M. Aksenov, I. G. Tananaev","doi":"10.1134/S0020168526700482","DOIUrl":"10.1134/S0020168526700482","url":null,"abstract":"<p>Extraction of f-elements from model solutions of high-level waste (HLW) was studied in order to identify the possibility of group separation of lanthanides and other components of this waste in the extraction process using a series of (2-carbamoylethyl) diphenylphosphine oxides (CEPO). As a result it was shown that CEPO class compounds extract trivalent lanthanide cations in nitric acid media selectively and effectively. The separation factor in the pair sum Ln<sup>3+</sup>/sum of the salt background cations of the model solution of HLW reaches 6 × 10<sup>4</sup> for compounds III–IV, while for compounds I and V it turns out to be significantly smaller—about 200. Re-extraction of the sum Ln<sup>3+</sup> from the saturated organic phase occurs quantitatively using a sodium carbonate solution in contrast to aqueous reextraction.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"61 7-15","pages":"705 - 710"},"PeriodicalIF":0.7,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147968122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. A. Bykov, I. V. Evdokimov, T. V. Kulikova, D. A. Ryzhov
{"title":"Thermophysical Properties of Single-Phase High Entropy Co–Cr–Fe–Ni Аlloys","authors":"V. A. Bykov, I. V. Evdokimov, T. V. Kulikova, D. A. Ryzhov","doi":"10.1134/S002016852670038X","DOIUrl":"10.1134/S002016852670038X","url":null,"abstract":"<p>High entropy alloys are of significant interest as promising materials, particularly in the energy sector, where thermophysical properties are of key importance. This study presents an analysis of the thermophysical properties (coefficient of thermal expansion, thermal diffusivity, specific heat capacity, and thermal conductivity) of single-phase Co<sub>40</sub>Cr<sub>20</sub>Fe<sub>25</sub>Ni<sub>15</sub>, Co<sub>40</sub>Cr<sub>25</sub>Fe<sub>20</sub>Ni<sub>15</sub>, Co<sub>25</sub>Cr<sub>20</sub>Fe<sub>25</sub>Ni<sub>30</sub>, Co<sub>25</sub>Cr<sub>25</sub>Fe<sub>20</sub>Ni<sub>30</sub>, and Co<sub>25</sub>Cr<sub>20</sub>Fe<sub>20</sub>Ni<sub>35</sub> alloys within the temperature range of 300 to 1173 K. The thermophysical characteristics of the Co–Cr–Fe–Ni alloys show no pronounced dependence on composition up to 800 K. However, upon further heating in the range of 773–1023 K, anomalies are observed: a stepwise increase in heat capacity and the coefficient of thermal expansion, as well as non-monotonic changes in thermal diffusivity and thermal conductivity. The primary heat transfer mechanism in these high entropy alloys is electronic conduction, which allows them to be classified as high-resistivity metallic conductors.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"61 7-15","pages":"632 - 637"},"PeriodicalIF":0.7,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147968140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. I. Trukhanova, D. D. Levin, K. A. Rayanova, S. I. Babenko, A. S. Bryleva, K. V. Kanaev, R. R. Nigamatullina, A. D. Sudakova, A. V. Shchegolkov, N. V. Myasishcheva, I. A. Komarov
{"title":"A Novel Reduced Graphene Oxide-Based Biosensor for Fast Detection of Thrombin","authors":"M. I. Trukhanova, D. D. Levin, K. A. Rayanova, S. I. Babenko, A. S. Bryleva, K. V. Kanaev, R. R. Nigamatullina, A. D. Sudakova, A. V. Shchegolkov, N. V. Myasishcheva, I. A. Komarov","doi":"10.1134/S002016852670024X","DOIUrl":"10.1134/S002016852670024X","url":null,"abstract":"<p>In this article, we described a successful approach to deposition and further local reduction of graphene oxide film for formation of biosensor. We used improved graphene oxide suspension with additional organic solvent by which we obtained better wettability of PET substrate. By local laser reduction of graphene oxide film we made sensor topology with different reduction level. We used thrombin aptamer to form sensitive layer of a biosensor and showed high sensitivity and selectivity of sensor that can be used for new point-of-care devices and personalized medicine in the future.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"61 7-15","pages":"530 - 536"},"PeriodicalIF":0.7,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147967974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Erratum to: Wills–Harrison Effective Pair Interaction in Liquid Copper and Silver","authors":"N. E. Dubinin","doi":"10.1134/S0020168526800010","DOIUrl":"10.1134/S0020168526800010","url":null,"abstract":"","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"61 7-15","pages":"711 - 711"},"PeriodicalIF":0.7,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147968057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Yu. Kolomiets, A. N. Rogova, V. I. Chelpanov, A. A. Ashmarin, K. A. Solntsev
{"title":"High‑Density MgAl2O4 Spinel Ceramics from Polymer‑Assisted Coprecipitated Nanopowder","authors":"T. Yu. Kolomiets, A. N. Rogova, V. I. Chelpanov, A. A. Ashmarin, K. A. Solntsev","doi":"10.1134/S0020168526700469","DOIUrl":"10.1134/S0020168526700469","url":null,"abstract":"<p>High-purity, sinter-active MgAl<sub>2</sub>O<sub>4</sub> nanopowders were synthesized via a novel reverse chemical coprecipitation route using polyvinylpyrrolidone (PVP) as a polymeric surfactant. The method aims to eliminate sintering additives, reduce synthesis and sintering temperatures, and control the microstructure for advanced transparent ceramic applications. The precursor, comprising ammonium dawsonite and amorphous magnesium carbonate (AMC), was precipitated at pH 8–11, with optimal conditions at pH 11 for monophase formation, and calcined at 900–1200°C. The use of PVP stabilized the high-surface-area AMC phase (up to 600 m<sup>2</sup>/g) and enabled the formation of monophase spinel nanopowders at a reduced temperature of 900°C, with a specific surface area of 140 m<sup>2</sup>/g. The powders were densified by vacuum sintering at 1550°C without any additives. The resulting ceramics achieved a high relative density of >99% and a tailored microstructure with a mean grain size of 15–20 μm, depending on the precursor calcination temperature, which is critical for optical transparency. This polymer-assisted coprecipitation process presents a promising, additive-free route for fabricating high-density MgAl<sub>2</sub>O<sub>4</sub> spinel ceramics suitable for optical and protective applications.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"61 7-15","pages":"691 - 699"},"PeriodicalIF":0.7,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147968069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Boron Nitride Nanosheets as Prospective Filler for Dielectric Thermally Conductive Elastomeric Films","authors":"N. S. Romanov, E. A. Danilov, I. A. Komarov","doi":"10.1134/S0020168526700123","DOIUrl":"10.1134/S0020168526700123","url":null,"abstract":"<p>In the present study, facile and green method for h-BN ultrasonic exfoliation was proposed. Exfoliated hexagonal boron nitride nanosheets characterized via transmission electron microscopy, atomic force microscopy as well as static light scattering, were used as fillers in silicone-based films, which enabled to significantly increase both their in-plane thermal conductivity and anisotropy of thermal properties (increase of 23.9 and 4.8 times, respectively, as compared to pure silicone). Composite films exhibited in-plane and through-plane thermal conductivity of 2.653 and 0.529 W/m K, respectively. At the same time, composites showed excellent electrical insulation properties—high volume resistance (10<sup>16</sup> Ohm cm), low permittivity (2.6) and dielectric loss tangent (0.02) at frequencies below 400 kHz.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"61 7-15","pages":"412 - 421"},"PeriodicalIF":0.7,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147968072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}