Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques最新文献

Experimental Observation of Transition from Two-Dimensional Turbulent Vortex Flow of Water to Three-Dimensional 二维湍流涡旋水流向三维过渡的实验观察

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-09-25 DOI: 10.1134/S1027451025700909

A. V. Poplevin, A. A. Levchenko, A. M. Likhter, S. V. Filatov, L. P. Mezhov-Deglin

{"title":"Experimental Observation of Transition from Two-Dimensional Turbulent Vortex Flow of Water to Three-Dimensional","authors":"A. V. Poplevin, A. A. Levchenko, A. M. Likhter, S. V. Filatov, L. P. Mezhov-Deglin","doi":"10.1134/S1027451025700909","DOIUrl":"10.1134/S1027451025700909","url":null,"abstract":"It has been experimentally shown that an increase in the water depth from 2 to 4 cm leads to the transition from two-dimensional to three-dimensional turbulence. Waves with a frequency of 6 Hz (wavelength λ = 5.6 cm) propagating on the water surface generate vortex flows penetrating into the water volume. The experiments show that in “shallow” water with a depth of h = 2 cm, the vortex flow is homogeneous and quasi-two-dimensional: the vertical velocity component of tracer particles is zero, and the vorticity vector is oriented vertically. In “deep” water (h = 4 cm), there is a developed three-dimensional chaotic liquid motion: the water layers are mixed due to solenoidal flows with both vertical and horizontal velocity components. Vortices in the liquid interact with surface flows, leading to an increase in their energy. As a result of this interaction, the energy of surface vortices, E(t), after turning off the pumping demonstrates a nonmonotonic dependence on time, which differs from the exponential decay characteristic of shallow water.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"19 3","pages":"616 - 620"},"PeriodicalIF":0.4,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135171","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

Properties of Interface Structures Based on Oxidized Lead Selenide 氧化硒化铅的界面结构性质

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-09-25 DOI: 10.1134/S1027451025700910

N. A. Tulina, A. N. Rossolenko, I. M. Shmytko, I. Y. Borisenko, D. N. Borisenko, N. N. Kolesnikov

{"title":"Properties of Interface Structures Based on Oxidized Lead Selenide","authors":"N. A. Tulina, A. N. Rossolenko, I. M. Shmytko, I. Y. Borisenko, D. N. Borisenko, N. N. Kolesnikov","doi":"10.1134/S1027451025700910","DOIUrl":"10.1134/S1027451025700910","url":null,"abstract":"In this work, single-phase monocrystalline and thin-film samples of lead selenide have been synthesized. Methods have been developed for the creation of surface oxidized lead selenide with a conductivity different from that of the base PbSe. Using oxidized lead selenide as an interface, Ag/Pb3OSeO3/PbSe heterostructures were made, demonstrating stable memristive characteristics. The obtained heterojunctions were investigated for the detection of resistive switching, and the volt -ampere characteristics and the temperature dependence of the resistance of the structures were measured. By changing the external parameters—frequency and magnitude of the electric field voltage applied to the heterocontact—different metastable states were realized. Dynamic effects were studied, and the transition times from one to another metastable state were determined. Single crystal-based memristors were more stable than film structures: reproducible characteristics in single crystal-based memristors were observed for several months.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"19 3","pages":"621 - 626"},"PeriodicalIF":0.4,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135172","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

Wear Resistance and Surface Roughness of ATZ Ceramics with Different Silica Contents 不同硅含量ATZ陶瓷的耐磨性和表面粗糙度

IF 0.4

Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-09-25 DOI: 10.1134/S1027451025700958

A. A. Dmitrievskiy, N. Yu. Efremova, V. M. Vasyukov, N. A. Lanyugov

{"title":"Wear Resistance and Surface Roughness of ATZ Ceramics with Different Silica Contents","authors":"A. A. Dmitrievskiy, N. Yu. Efremova, V. M. Vasyukov, N. A. Lanyugov","doi":"10.1134/S1027451025700958","DOIUrl":"10.1134/S1027451025700958","url":null,"abstract":"Alumina toughened zirconia (ATZ) ceramics has a wide range of practical applications due to the unique combination of excellent mechanical properties, chemical resistance and bioinertness. The introduction of special additives (in particular SiO2) into its composition contributes to an increase in the mechanically induced transformability of the t-ZrO2 tetragonal phase, which has a positive effect on the complex of mechanical properties. The regularities of the silica concentration influence on tribological properties (friction coefficient μ, wear rate W and polished surface roughness Ra) of ATZ + SiO2 ceramics have been established. It is shown that the wear resistance of ceramics, sensitive to the content of silica additive, affects the surface roughness Ra, which is retained after mechanical grinding and polishing. In general, an increasing in the SiO2 concentration has a negative effect on the tribological characteristics. However, concentration “windows” have been identified (in the vicinity of ({{C}_{{{text{Si}}{{{text{O}}}_{2}}}}}) = 1 mol % and ({{C}_{{{text{Si}}{{{text{O}}}_{2}}}}}) = 4 mol %), in which the addition of SiO2 has a minimal effect on wear resistance. In the concentration range 0 < ({{C}_{{{text{Si}}{{{text{O}}}_{2}}}}}) < 3 mol %, the friction coefficient decreases non-monotonically with a minimum in the vicinity of ({{C}_{{{text{Si}}{{{text{O}}}_{2}}}}}) = 1 mol %.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"19 3","pages":"647 - 652"},"PeriodicalIF":0.4,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135176","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

Changes in the Structure and Properties of Fluorocarbon Coatings under Irradiation with Accelerated C60 Ions 加速C60离子辐照下氟碳涂料结构与性能的变化

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-09-25 DOI: 10.1134/S1027451025700855

V. E. Pukha, G. V. Nechaev, E. N. Kabachkov, I. N. Lukina, E. I. Drozdova, O. P. Chernogorova

{"title":"Changes in the Structure and Properties of Fluorocarbon Coatings under Irradiation with Accelerated C60 Ions","authors":"V. E. Pukha, G. V. Nechaev, E. N. Kabachkov, I. N. Lukina, E. I. Drozdova, O. P. Chernogorova","doi":"10.1134/S1027451025700855","DOIUrl":"10.1134/S1027451025700855","url":null,"abstract":"The first results of combined deposition of coatings from a beam of accelerated C60 fullerene ions and fluoroplastic vapor (polymerized tetrafluoroethylene, PTFE) are presented. The coatings were formed by condensation of thermally evaporated PTFE on a Si substrate in vacuum under irradiation with a C60 ion beam with an energy of 5 keV passed through a mass spectrometer. The calculated ratio of C60 ions and molecular fragments condensing on the substrate (–CF2–CF2–) was chosen close to 1 : 1. The structure of the coatings and chemical bonds have been studied by Raman scattering and X-ray photoelectron spectroscopy, according to which the coating contains about 8.6 at % fluorine. The coating contains ~35% sp3 bonds, with a sp3/sp2 ratio of ~0.76, and the main part (up to 50%) of fluorine–carbon bonds is concentrated in the form of polymer chains –CF2–CF2–, which are located in a solid carbon matrix; that is, the coating structure is a nanocomposite. Mechanical tests showed high hardness of the coating H ~ 32 GPa with an H/E ratio of ~0.16 (E is Young’s modulus). The coating is characterized by a high contact angle of wetting with distilled water (CA = 98°). Tribological tests showed a coefficient of friction close to 0.18, with low wear of less than 10–7 mm3/(N m).","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"19 3","pages":"574 - 581"},"PeriodicalIF":0.4,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135009","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

New Hybrid Multicomponent Selenium-Containing Nanosystems for Photodynamic Therapy 用于光动力治疗的新型混合多组分含硒纳米系统

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-09-25 DOI: 10.1134/S102745102570106X

S. V. Valueva, M. E. Vylegzhanina, L. N. Borovikova, P. J. Morozova, A. V. Yakimansky

{"title":"New Hybrid Multicomponent Selenium-Containing Nanosystems for Photodynamic Therapy","authors":"S. V. Valueva, M. E. Vylegzhanina, L. N. Borovikova, P. J. Morozova, A. V. Yakimansky","doi":"10.1134/S102745102570106X","DOIUrl":"10.1134/S102745102570106X","url":null,"abstract":"Comparative studies of new double and triple selenium-containing nanosystems based on a Photoditazine photosensitizer and amphiphilic molecular brushes (graft copolymers) with a polyimide or cellulose backbone and polymethacrylic acid side chains have been performed by atomic force microscopy and UV–visible spectroscopy. The influence of the structure and topology of the graft copolymers on the morphological and spectral characteristics of amphiphilic molecular brushes loaded with selenium nanoparticles and Photoditazine has been established. It is found that amphiphilic molecular brushes prevent the association of the selenium nanoparticles in solution, forming predominantly discrete spherical nanostructures. It is shown that for a double selenium-containing nanodispersion obtained on the brush with a polyimide main chain with a polymerization degree of the side chains of polymethacrylic acid m = 180, in addition to spherical discrete nanostructures, “capsules” of 200–400 nm in size are also observed. It is suggested that formation of the hybrid multicomponent selenium-containing nanostructures occurs mainly due to the steric stabilization of selenium nanoparticles by brush macromolecules and their incorporation according to the type of metal-porphyrin complexes. Based on UV–visible spectroscopy data, the band gap energy and the diameter of the selenium nanoparticles for hybrid multicomponent selenium-containing nanostructures have been calculated.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"19 3","pages":"717 - 728"},"PeriodicalIF":0.4,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135185","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

Maximum Achievable Diffraction Efficiency of Neutron Low-Frequency Gratings with Different Groove Profiles 不同槽型中子低频光栅的最大衍射效率

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-09-25 DOI: 10.1134/S1027451025700831

L. I. Goray, N. A. Kostromin

{"title":"Maximum Achievable Diffraction Efficiency of Neutron Low-Frequency Gratings with Different Groove Profiles","authors":"L. I. Goray, N. A. Kostromin","doi":"10.1134/S1027451025700831","DOIUrl":"10.1134/S1027451025700831","url":null,"abstract":"Rigorous calculations of the absolute diffraction efficiency η performed earlier using two commercial computer solvers based on electromagnetic methods have shown that the maximum η of neutron gratings with sinusoidal and lamellar groove profiles can exceed known analytical limits. Thus, for a sinusoidal grating with a period of d = 50 μm and a groove depth of h = 53.4 nm at an incidence angle of θ = 89.72° (θc = 89.53°), η(–1) = 46.8% was obtained at a wavelength of λ = 1 nm, which is 38.5% higher than the maximum scalar efficiency. For a similar lamellar grating, η(–1) = 46.05% was determined, which is 13.7% higher than the scalar one. In this work, gratings with sinusoidal and lamellar groove profiles were investigated for copper, one of the most promising materials for cold neutron optics. The most efficient gratings with a triangular profile (“with a blaze”) were also considered. For a grating with d = 50 µm and h = 41.1 nm, η(–1) = 79.2% was achieved for θ = 89.37° and λ = 1 nm. The data calculated using both software with an accuracy of ~0.1% for the main diffraction orders of gratings of all groove profiles converge well and correspond to the estimates obtained using the phenomenological approach.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"19 3","pages":"562 - 567"},"PeriodicalIF":0.4,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145134998","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

Study of the Effect of Carbon Barrier Layers on the Structural and Reflective Properties of Multilayer X-ray Mirrors Based on the Cr/V Material Pair 碳阻挡层对Cr/V材料对多层x射线反射镜结构和反射性能影响的研究

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-09-25 DOI: 10.1134/S1027451025701022

R. A. Shaposhikov, V. N. Polkovonikov, N. I. Chkhalo

{"title":"Study of the Effect of Carbon Barrier Layers on the Structural and Reflective Properties of Multilayer X-ray Mirrors Based on the Cr/V Material Pair","authors":"R. A. Shaposhikov, V. N. Polkovonikov, N. I. Chkhalo","doi":"10.1134/S1027451025701022","DOIUrl":"10.1134/S1027451025701022","url":null,"abstract":"The structural parameters and reflective properties of multilayer X-ray mirrors based on a chromium–vanadium material pair were studied. These mirrors are optimized for operation in the spectral range of 2.42–2.73 nm. One of the key practical applications of such mirrors is X-ray microscopy, which enables real-time studies of biological samples. Achieving the highest possible reflectivity of X-ray mirrors is essential for maximizing the temporal resolution of such experiments. It was shown that Cr/V mirrors exhibit large interfacial transition zones (arising at layer boundaries due to intermixing and chemical interactions between materials), which reduce the reflectivity of the mirror. It was also found that the transition zones between different materials are uniform both within a single bilayer and across multiple periods of the mirror structure. To reduce the thickness of these transition zones, carbon barrier layers were introduced into the mirror structure. This approach significantly decreased the interfacial zone thickness, which in turn led to an increase in mirror reflectivity.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"19 3","pages":"692 - 696"},"PeriodicalIF":0.4,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135182","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

Upgraded Rubidium-Based Multilayer Mirrors for Operation in the Radiation Wavelength Range of 11.4–17 nm 在11.4 ~ 17nm辐射波长范围内工作的升级铷基多层镜

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-09-25 DOI: 10.1134/S1027451025701034

M. A. Yamschikova, V. M. Yamschikov

{"title":"Upgraded Rubidium-Based Multilayer Mirrors for Operation in the Radiation Wavelength Range of 11.4–17 nm","authors":"M. A. Yamschikova, V. M. Yamschikov","doi":"10.1134/S1027451025701034","DOIUrl":"10.1134/S1027451025701034","url":null,"abstract":"The paper presents the theoretical modeling results of the reflectivity of multilayer mirrors based on rubidium and its compounds, designed to operate in the radiation wavelength range of 11.4–17 nm and of interest to modern lithography and X-ray astronomy. Using a genetic algorithm, the problem of optimizing the multilayer design of such mirrors to achieve maximum reflection is solved, and a comparison of the theoretical reflection coefficients obtained in this work with modern developments of multilayer X-ray mirrors in the characteristic radiation regions of 11.4, 13.5, and 17 nm is presented. Due to the high chemical activity of pure rubidium, it is proposed to use a more stable compound for the potential practical implementation of rubidium-containing mirrors. It is shown that the use of boron carbide between the main layers of the mirrors leads to a significant increase in their final reflection coefficient and can be considered a barrier method to prevent interdiffusion between materials; however, experimental verification of this hypothesis is required. The integral reflection of an optical system containing a few multilayer mirrors significantly depends on increasing the reflectivity of a single mirror, thus justifying the prospects of using the proposed mirrors in the optical system of a modern lithograph.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"19 3","pages":"697 - 702"},"PeriodicalIF":0.4,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135184","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

Dynamics of Deuterium Release from EK-181 and Eurofer Steels Depending on Storage Conditions 贮存条件对EK-181和Eurofer钢中氘释放的影响

IF 0.4

Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-09-25 DOI: 10.1134/S1027451025700867

A. V. Golubeva, V. Kh. Alimov, V. S. Efimov, A. P. Persianova, N. P. Bobyr, T. A. Shishkova, D. Terentyev, V. M. Chernov

{"title":"Dynamics of Deuterium Release from EK-181 and Eurofer Steels Depending on Storage Conditions","authors":"A. V. Golubeva, V. Kh. Alimov, V. S. Efimov, A. P. Persianova, N. P. Bobyr, T. A. Shishkova, D. Terentyev, V. M. Chernov","doi":"10.1134/S1027451025700867","DOIUrl":"10.1134/S1027451025700867","url":null,"abstract":"The EK-181 and Eurofer steel samples were saturated in gaseous deuterium at 200°C and a pressure of 5 atm for 25 h. The effect of sample storage conditions (in vacuum or in air) on the deuterium release from EK-181 and Eurofer steels was studied. The deuterium retention was examined by thermal desorption spectroscopy after storage from several days to one and a half years after the samples were saturated with deuterium. The EK-181 steel samples contained 3.5–6 times more deuterium than the Eurofer steel samples. After one and a half years of storage, the deuterium retention decreased by 1.5–3 times in EK-181 steel and by 3–4 times in Eurofer steel. For the EK-181 steel samples, no unambiguous conclusion can be made about the effect of storage conditions on the deuterium release from the material. Deuterium releases more slowly from the Eurofer steel samples if they were stored in a vacuum. Time dependences of the deuterium retention under different storage conditions were obtained.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"19 3","pages":"582 - 589"},"PeriodicalIF":0.4,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135010","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

ECR Light Ion Source ECR离子光源

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-09-25 DOI: 10.1134/S102745102570096X

K. E. Prianishnikov, D. N. Seleznev, A. B. Zarubin, N. N. Vinogradskii, P. A. Fedin, T. V. Kulevoy

引用次数: 0