Surface Engineering and Applied Electrochemistry最新文献

{"title":"Modification of the Surface Layer of Composite Membranes","authors":"D. D. Fazullin,&nbsp;G. V. Mavrin,&nbsp;L. I. Fazullina","doi":"10.3103/S1068375525700929","DOIUrl":"10.3103/S1068375525700929","url":null,"abstract":"<p>The work contains studies on increasing the porosity of the surface layer of composite membranes. In order to increase the porosity of composite membranes, such solvents as ethanol and acetonitrile, whose boiling point is higher than that of acetone, which was used as the main cellulose acetate, were added to the polymer solution as a porogen. Based on the results of the study, samples of composite membranes were obtained and their physicochemical properties, such as total porosity, layer thickness, water absorption, and wetting angle, were studied and IR spectra of the membranes were obtained. The specific productivity and retention capacity of the obtained microfiltration membranes were also established.</p>","PeriodicalId":782,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"61 6","pages":"842 - 847"},"PeriodicalIF":0.7,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145706243","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}

{"title":"Oxidation-Reduction Potential during Electrolysis of Whey","authors":"I. I. Vutkareva,&nbsp;G. K. Balan,&nbsp;M. K. Bologa","doi":"10.3103/S1068375525701017","DOIUrl":"10.3103/S1068375525701017","url":null,"abstract":"<p>Fermentation of whey facilitates the increasing of its acidity and changes its redox potential. As a result of the research, it was possible to improve the quality of whey by its electrical processing, increase its acidity, in particular, to change the pH of the medium from 4.5 to 2 under optimal process conditions.</p>","PeriodicalId":782,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"61 6","pages":"937 - 941"},"PeriodicalIF":0.7,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145706122","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}

{"title":"Structure, Elemental, and Phase Composition of the Surface Alloy Ti–Al–V–Ag Synthesized by the Combined Action of Ion-Plasma Flows","authors":"A. V. Basalai,&nbsp;N. N. Cherenda,&nbsp;A. Yu. Izobello,&nbsp;A. P. Laskovnev,&nbsp;V. V. Uglov,&nbsp;L. V. Bakhanovich,&nbsp;V. M. Astashinsky,&nbsp;A. M. Kuzmitsky","doi":"10.3103/S1068375525700747","DOIUrl":"10.3103/S1068375525700747","url":null,"abstract":"<p>The formation of surface Ti–Ag–Al–V alloy was carried out by compression plasma flows impact on Ti–6Al–4V titanium alloy preliminary coated by silver. The coating was deposited on the sample by the electron beam technique. The thickness of the coating was approximately 2 μm. The treatment of the system samples was carried out by three pulses of compression plasma flows in a nitrogen atmosphere (energy density absorbed by the surface varied from 26 to 43 J/cm² per pulse). The phase and elemental composition, structure, surface roughness, and microhardness were investigated. It has been established that the action of compression plasma flows on Ag/Ti–6Al–4V system results in the formation of TiAg, Ag, and δ-TiN in the surface alloyed layer. Increase of the energy absorbed by the surface during plasma impact (26–43 J/cm²) led to a decrease in Ag concentration (20.0–6.9 wt %) in the analyzed layer. The change of phase composition and structure results in modification of the microhardness. A microhardness increase up to 4.8 GPa (1.3 times in comparison with initial Ti–6Al–4V alloy) was found after compression plasma flows’ treatment at 43 J/cm².</p>","PeriodicalId":782,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"61 5","pages":"686 - 691"},"PeriodicalIF":0.7,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341259","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}

{"title":"Optical Properties Comparison of WO3, WO3@TiO2 and TiO2 Nanopowders","authors":"Mustafa Shakir Hashim,&nbsp;Reem Saadi Khaleel,&nbsp;Hussein Thamir Saloom","doi":"10.3103/S106837552570084X","DOIUrl":"10.3103/S106837552570084X","url":null,"abstract":"<p>In this paper, an attempt is made to know the changes that occur in the optical properties of WO₃ and TiO₂ nanopowders after forming WO₃@TiO₂ Core-shell nanopowder. Using the anodizing method, WO₃ and TiO₂ nanopowders were synthesized. WO₃@TiO₂ powder was formed using the hydrothermal method. Analytical techniques including SEM, TEM, XRD, and UV-VIS diffuse reflectance spectra were used to characterize each of the three samples. Reflectance percentage, absorbance percentage as well as Absorption, Scattering, and Extinction cross sections for all samples were studied. The energy band gaps were calculated for all samples, they were 2.72, 3.57, and 3.6 eV for WO₃, TiO₂, and WO₃@TiO₂, respectively. A material with better absorption and a longer spectrum response than each material alone is created by WO₃@TiO₂, which combines the characteristics of both WO₃ and TiO₂.</p>","PeriodicalId":782,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"61 5","pages":"774 - 780"},"PeriodicalIF":0.7,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341262","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}

{"title":"Comparative Study of the Deformation Properties of Concrete with Vegetable and Steel Fibers","authors":"Xianpeng Wang,&nbsp;Yuhao Jiang,&nbsp;S. N. Kovshar,&nbsp;T. A. Chistova,&nbsp;S. N. Leonovich","doi":"10.3103/S106837552570070X","DOIUrl":"10.3103/S106837552570070X","url":null,"abstract":"<p>This article analyzes the deformation properties of concrete with non-metallic fibers (coconut and cane) and steel fibers. Using two variables of normal stress (σ_v/MPa) and different concentration of fiber content (<i>r</i>/%), a computational experiment was carried out. During the experiment, the properties of fiber-reinforced concrete samples with coconut, reed and steel fibers and reference concrete samples for tension, bending and compression were compared. The experiments led to the conclusion that all types of fibers can improve the mechanical properties of structural concrete. An analysis of the test results showed that the best way to improve the mechanical properties of concrete is to add 2% reed or coconut fiber and 1.5% steel to the concrete mixture. During the experiments, it was found that due to the impact strength of metal fibers, the compressive results of samples with steel fiber are much higher than for samples with plant fibers, while the bending strength and tensile strength are higher for samples with non-metal fibers. According to the results of the experiments, the relationship between the mechanical stress of fiber-reinforced concrete is as follows: concrete with steel fibers &gt; concrete with reed fibers &gt; concrete with coconut fibers.</p>","PeriodicalId":782,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"61 5","pages":"655 - 664"},"PeriodicalIF":0.7,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341264","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}

{"title":"Effect of Particle Inclusions, Electrolyte Additives and Process Parameters on PEO-Coated Mg Alloys—A Review","authors":"M. Madhu,&nbsp;S. Manivannan,&nbsp;D. Sreekanth,&nbsp;M. Arunkumar,&nbsp;P. Sajeesh","doi":"10.3103/S1068375525700826","DOIUrl":"10.3103/S1068375525700826","url":null,"abstract":"<p>Magnesium alloys have found extensive applications in industry due to their low density, exceptional strength-to-weight ratio and high damping capacity. Those bio-compatible alloys have been used as a versatile material for permanent implants in the body. High affinity for corrosion and subsequent degradation in the presence of corrosive anions require surface modification methods over these alloys. Anti-corrosion and wear-resistant plasma electrolytic oxidation (PEO) coatings on magnesium alloys are more cost-effective and environmentally friendly among various surface treatment methods. The surface characteristics, wear, and corrosion resistance of the sample can be improved with the addition of various micro/nano-particles or additives to the electrolyte. The effect of various PEO process parameters on the coating characteristics is further discussed in this review paper. The mechanisms underlying corrosion inhibition and the degradation of those coatings in the presence of corrosive environments are elaborated in this work.</p>","PeriodicalId":782,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"61 5","pages":"740 - 761"},"PeriodicalIF":0.7,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341258","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}

{"title":"Toward Biomolecular Electronics and Ionics Based on RNA with Various Counterions","authors":"P. L. Aleksandrov,&nbsp;S. B. Bibikov,&nbsp;O. V. Gradov,&nbsp;M. A. Gradova,&nbsp;I. A. Maklakova,&nbsp;A. A. Mal’tsev,&nbsp;Yu. K. Naganovskii,&nbsp;A. V. Ratnovskaya,&nbsp;A. I. Sergeev","doi":"10.3103/S1068375525700693","DOIUrl":"10.3103/S1068375525700693","url":null,"abstract":"<p>The article considers arguments supporting and disproving the possibility of a solid-state approach to the analysis of the properties of RNA and other nucleic acids. Substantiations are given for the rationality of parallel indication of the electrophysical and phase properties of nucleic acids and their components taking into account the effects and mechanisms of action of the components of the medium. The dependence of such effects on the ionic composition of the medium and the degree of hydration of the sample is indicated. Methods are proposed for studying the dependence of the electrophysical properties of dehydrated solid-state RNA samples on the ionic composition of the medium, in particular, on the nature of the counterion. The set of methods used includes the direct visualization of charging of the surface of samples using the electron beam of a scanning electron microscope and oscillography of charge wave propagation, measurements of proton magnetic relaxation to estimate the spin–spin relaxation times and the fraction of protons with different degrees of mobility, analysis of the phase state of crystalline RNA and its salts by thermogravimetry, and analysis of the dispersion of the permittivity of crystalline RNA and its salts up to the ultrahigh-frequency range. Thus, for the tasks of creating bioelectronics/biomolecular electronics based on solid-state RNA, the following is experimentally proven: (a) the possibility of conducting an electrophysical signal on the surface of RNA granules, (b) the presence of a micro/nanostructure capable of conducting an electrophysical RNA signal, and (c) the dependence of signal conduction on the ionic composition of the medium and the degree of hydration of the sample. For solid-state RNA and its salt, the charging under the electron beam, the mobility of protons, and the frequency dependence (dispersion) of the permittivity in the radio frequency range (up to microwave frequencies) differ significantly.</p>","PeriodicalId":782,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"61 5","pages":"637 - 654"},"PeriodicalIF":0.7,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341278","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}

{"title":"Forecasting of Fatigue Curves of Metals and Alloys at Micro-, Meso-, and Macroscale Levels of Destruction Development under Periodic Software Loadings","authors":"E. B. Zavoichinskaya,&nbsp;I. Yu. Panarin","doi":"10.3103/S1068375525700711","DOIUrl":"10.3103/S1068375525700711","url":null,"abstract":"<p>A system of recurrent constitutive relations is written for the brittle fracture probability at micro-, meso-, and macroscale levels, and fatigue curves on defect levels are plotted at the one frequency symmetric loading, consisting of a finite number of blocks with different amplitudes and number of cycles. The results of calculations at different regimes of two block loading for 0.25% carbon steel are in satisfactory agreement with the known experimental data.</p>","PeriodicalId":782,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"61 5","pages":"665 - 671"},"PeriodicalIF":0.7,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341261","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}

{"title":"Hybrid Secondary Structure of Manganese and Sulfur in Silicon","authors":"Sh. B. Utamuradova,&nbsp;A. Sh. Mavlyanov,&nbsp;Sh. A. Sobirova,&nbsp;O. E. Sattarov","doi":"10.3103/S1068375525700681","DOIUrl":"10.3103/S1068375525700681","url":null,"abstract":"<p>A model and results of quantum-chemical calculations of a hypothetical structure of Si₂MnS, similar to the cubic structure of F43m-β-MnS are proposed. The results of a comparative analysis of the gap width <i>E</i>_g of the Si₂MnS structure obtained in quantum-chemical numerical calculations of the electron position and the experimental results of measuring the photoconductivity spectrum of a Si sample doped with Mn and S impurity atoms are presented. The quantum-chemical calculations of the Si₂MnS structure were performed without a preliminary geometry optimization due to the fact that optimization and subsequent calculations by the density functional theory yields a fusion of the valence and conduction bands (VBM and CBM). Thorough theoretical studies, detailed quantum-chemical calculations, and experiments in the field of creating of a new class of hybrid compounds with a cubic lattice of the diamond type with the participation of elements of groups IV/III–V and IV/II–VI will allow predicting new structures in the future.</p>","PeriodicalId":782,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"61 5","pages":"633 - 636"},"PeriodicalIF":0.7,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341205","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}

{"title":"Comparative Studies of Ti–6Al–4V Titanium Alloy Fractograms under Dynamic and Quasi-Static Plastic Deformation","authors":"B. B. Khina,&nbsp;A. I. Pokrovsky","doi":"10.3103/S1068375525700723","DOIUrl":"10.3103/S1068375525700723","url":null,"abstract":"<p><b>Abstract</b><i>—</i>Comparative studies of fractograms of Ti–6Al–4V titanium alloy under dynamic and quasi-static plastic deformation have been conducted. The specimens were fractures of cap-type parts obtained by the Eriksen cupping test under different deformation rates, namely quasi-stationary (low <span>(dot {varepsilon })</span> = 1 s^–1) and at impact hydroforming (high <span>(dot {varepsilon })</span> = 3828 s^–1). Significant differences in the nature of the fractures have been revealed. It is shown that slow deformation results in predominantly ductile transcrystalline fracture in the presence of individual domains of brittle intercrystalline fracture corresponding to the breakouts of groups consisting of several grains. During dynamic deformation, a predominantly ductile transcrystalline fracture is observed, which indicates an increase in plasticity. In this case, the edges of the dimples are smoother than in the case of quasi-static deformation, which indicates the occurrence of additional local plastic deformation at the last stage of fracture. The revealed features of titanium alloy fracture are one of the reasons that ensure a more uniform deformation under dynamic loading and an overall increase in technological plasticity.</p>","PeriodicalId":782,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"61 5","pages":"672 - 677"},"PeriodicalIF":0.7,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341207","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}