Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques最新文献_第6页

Time-of-Flight Neutron Reflectometer for the DARIA Compact Neutron Source: Monte Carlo Simulation

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-01 DOI: 10.1134/S102745102470160X

N. A. Grigoryeva, N. A. Kovalenko, S. V. Grigoriev

引用次数: 0

X-Ray Phase Analysis of Composites after Temperature Modification of Titanium Dioxide with Melamine at Different Quantities of Initial Components

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-01 DOI: 10.1134/S1027451024701362

I. B. Dorosheva, S. A. Petrova, A. A. Rempel’

{"title":"X-Ray Phase Analysis of Composites after Temperature Modification of Titanium Dioxide with Melamine at Different Quantities of Initial Components","authors":"I. B. Dorosheva, S. A. Petrova, A. A. Rempel’","doi":"10.1134/S1027451024701362","DOIUrl":"10.1134/S1027451024701362","url":null,"abstract":"Composites based on melamine and titanium dioxide at different initial ratios 4 : 1, 6 : 1, 8 : 1, and 10 : 1 were obtained by polymerization in air at a temperature of 550°C. The morphology of the samples was investigated, and the elemental mapping of the sample composition was carried out using scanning electron microscopy. It was found that the initial melamine particles have a size of more than 20 μm, and its polymerization leads to the formation of g-C3N4 layers up to 5 μm in size. TiO2 particles have an average size of 150 nm, and the resulting g-C3N4/TiO2 heterostructures consist of particles with a size of 20–30 nm, which form agglomerates of about 2 μm in size. It was shown that the specific surface area decreases from 67 to 41 m2/g with increasing melamine content in the initial mixture. A single-phase composition TiN0.24O1.88 was formed when the initial components were mixed at a ratio of 4 : 1. When the ratio of the initial melamine and titanium dioxide was increased to 8 : 1 and 10 : 1, a two-phase system was formed, which consisted of Ti0.72O2 in an amount from 12 to 13% and C3N4 in an amount from 87 to 88%. During synthesis at a ratio of 6 : 1, two phases were also formed, but the C3N4 content in it was significantly less, up to 5%.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 6","pages":"1430 - 1435"},"PeriodicalIF":0.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527697","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 Zinc Implanted Silicon Nitride Film

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-01 DOI: 10.1134/S1027451024701519

V. V. Privezentsev, A. A. Firsov, V. S. Kulikauskas, D. A. Kiselev, B. R. Senatulin

{"title":"Study of Zinc Implanted Silicon Nitride Film","authors":"V. V. Privezentsev, A. A. Firsov, V. S. Kulikauskas, D. A. Kiselev, B. R. Senatulin","doi":"10.1134/S1027451024701519","DOIUrl":"10.1134/S1027451024701519","url":null,"abstract":"The results of studying nanoclusters at the interface of a Si3N4 film on a Si substrate implanted with 64Zn+ ions with a dose of 5 × 1016/cm2 and an energy of 40 keV are presented. The Si3N4 film was deposited on a silicon substrate using a gas-phase method. Then the implanted samples were annealed in air in steps of 100°C for 1 h at each step in the temperature range of 400–700°C. The surface morphology of the samples was studied using scanning probe microscopy. The profiles of the implanted impurity and film elements, as well as the chemical state of the Zn ion, were studied using X-ray photoelectron and Auger electron spectroscopy. The shock pulse method revealed that after implantation individual metallic zinc nanoclusters with a size of about 100 nm or less are present near the surface of the Si3N4 film. During the annealing process, they grow and simultaneously transform into the ZnSiN2 phase and, possibly, into the phases of zinc oxide and silicide near the surface. After annealing at a temperature of 700°C, Zn-containing nanoclusters with a size of about 100 nm are formed in the Si3N4 film.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 6","pages":"1538 - 1544"},"PeriodicalIF":0.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527703","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

Activation of Polylactic Acid Surface by Glow Discharge Low-Temperature Plasma in Ar/Air Gas Mixture Flows with the Addition of Diethylamine Vapor 在加入二乙胺蒸汽的氩气/空气混合气体流中利用辉光放电低温等离子体活化聚乳酸表面

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-01 DOI: 10.1134/S1027451024701532

A. G. Korzhova, A. A. Bryuzgina, U. V. Khomutova, O. A. Laput, I. V. Vasenina, D. A. Zuza, S. G. Tuyakova, I. A. Kurzina

{"title":"Activation of Polylactic Acid Surface by Glow Discharge Low-Temperature Plasma in Ar/Air Gas Mixture Flows with the Addition of Diethylamine Vapor","authors":"A. G. Korzhova, A. A. Bryuzgina, U. V. Khomutova, O. A. Laput, I. V. Vasenina, D. A. Zuza, S. G. Tuyakova, I. A. Kurzina","doi":"10.1134/S1027451024701532","DOIUrl":"10.1134/S1027451024701532","url":null,"abstract":"The surface physicochemical properties of materials-based on polylactic acid modified by flows of low-temperature glow discharge plasma were studied. A mixture of argon and air acted as a plasma-forming gas, and diethylamine vapor was injected into the plasma as a precursor of amino groups. The elemental composition and chemical state of the surface were studied using X-ray photoelectron spectroscopy. The attachment of nitrogen atoms to the polylactic acid surface and the formation of a bond between the surface carbon and the penetrated nitrogen have been established. It was shown that the hydrophilicity of the plasma modified polylactic acid surface was significantly increased. The obtained polylactic acid-based materials with the argon/air/diethylamine plasma modified surface may have prospects for use in biomedicine due to improved hydrophilicity and the presence of reactive oxygen- and nitrogen-containing functional groups on the surface.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 6","pages":"1551 - 1559"},"PeriodicalIF":0.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527639","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

Analysis of Crystalline Phases of Electroactive Forms of a Composite of Polyvinylidene Fluoride and Tetrafluoroethylene Copolymer with Nanographite 聚偏氟乙烯和四氟乙烯共聚物与纳米石墨复合材料的电活性形式结晶相分析

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-01 DOI: 10.1134/S1027451024701234

V. I. Bachurin, N. G. Savinski, A. P. Khramov, M. A. Smirnova, R. V. Selyukov

{"title":"Analysis of Crystalline Phases of Electroactive Forms of a Composite of Polyvinylidene Fluoride and Tetrafluoroethylene Copolymer with Nanographite","authors":"V. I. Bachurin, N. G. Savinski, A. P. Khramov, M. A. Smirnova, R. V. Selyukov","doi":"10.1134/S1027451024701234","DOIUrl":"10.1134/S1027451024701234","url":null,"abstract":"The work examines the effect of crystallization conditions of vinylidene fluoride (VDF) and tetrafluoroethylene (TFE) copolymer (F-42) from aprotic solvents (dimethyl sulfoxide (DMSO) and dimethylformamide (DMF)) under isothermal conditions at temperatures of 60, 90, and 150°C on the phase composition of the films. The content of crystalline phases in F-42 films is analyzed using Fourier-transform infrared spectroscopy, Raman spectroscopy, and X-ray phase analysis. The effect of nanographite fillers on the crystalline phases of the copolymer films is also studied. Nanographite fillers alter the crystalline structure of the polymer piezoelectric films and their piezoelectric properties, forming electroactive β and γ phases with high content during crystallization from 5-wt-% solutions of aprotic solvents. Some analytical features of the crystalline allotrope phase content are identified using these methods. The total content of crystalline electroactive phases in the VDF/TFE copolymer during isothermal crystallization from DMSO and DMF is 96–98%, while the β-phase content is 75–80%.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 6","pages":"1340 - 1348"},"PeriodicalIF":0.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527666","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

Dependence of Magnetic and Magnetoimpedance Properties of Samples of Amorphous Fe-Based Alloys on Their Shape. Influence of Glass Shell Thickness in the Case of Microwires 非晶铁基合金样品的磁性和磁阻特性与其形状的关系。微导线情况下玻璃壳厚度的影响

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-01 DOI: 10.1134/S1027451024701520

N. S. Perov, V. V. Rodionova, S. V. Samchenko, V. V. Molokanov

{"title":"Dependence of Magnetic and Magnetoimpedance Properties of Samples of Amorphous Fe-Based Alloys on Their Shape. Influence of Glass Shell Thickness in the Case of Microwires","authors":"N. S. Perov, V. V. Rodionova, S. V. Samchenko, V. V. Molokanov","doi":"10.1134/S1027451024701520","DOIUrl":"10.1134/S1027451024701520","url":null,"abstract":"Amorphous magnetic metal alloys are a rather new class of materials compared to crystalline ones. They differ significantly from crystalline materials in their structure and physical and magnetic properties. The amorphous state of matter is a state in which there is no long-range order in the arrangement of atoms. The lack of long-range order often leads to changes in physical properties that are difficult or impossible to obtain in a solid with a crystalline structure. One important factor is the extremely small value of magnetocrystalline anisotropy, which leads to an increase in the contributions of magnetoelastic anisotropy and shape anisotropy. In the presented work, a comparative analysis of the magnetic properties of three types of samples prepared from amorphous Fe77.5Si12.5B10 alloy (ribbons, thick wires, and glass-shell microwires) has been carried out. It is found that the impedance characteristics of all the samples are quite small, although they depend on the type of the sample. For composite samples (glass-covered microwire), the magnetic properties strongly depend on both the thickness of the metallic core and the ratio of the total thickness of the microwire to the thickness of the metallic core. The obtained experimental results are presented in the form of graphical dependences.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 6","pages":"1545 - 1550"},"PeriodicalIF":0.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527671","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

Effect of Electron Beam Treatment of Composite ATZ and TZP Ceramics on Surface Topography and Reaction of Osteoblast-Like Cells

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-01 DOI: 10.1134/S1027451024701672

A. E. Petrov, I. Yu. Bakeev, A. A. Zenin, A. S. Klimov

{"title":"Effect of Electron Beam Treatment of Composite ATZ and TZP Ceramics on Surface Topography and Reaction of Osteoblast-Like Cells","authors":"A. E. Petrov, I. Yu. Bakeev, A. A. Zenin, A. S. Klimov","doi":"10.1134/S1027451024701672","DOIUrl":"10.1134/S1027451024701672","url":null,"abstract":"We present the effect of electron beam treatment on the surface roughness of composite ceramics as well as on the behavior of osteoblast-like cells seeded on the surface. Aluminum oxide and zirconium dioxide based composite ceramics and tetragonal zirconium dioxide stabilized yttrium oxide based ceramics were selected as materials. Sandblasting and electron beam treatment were used as surface modification methods. Micrographs of the sample surface and section after electron beam treatment are presented. Differentiation at the stage of osteoblast formation was assessed by the expression of osteocalcin (BGLAP) genes. An increase in the expression of BGLAP gene responsible for osteocalcin production after surface modification by electron beam was shown. The BGLAP gene expression was higher on tetragonal zirconium dioxide stabilized with yttrium oxide material, compared to a composite material based on zirconium dioxide with the addition of 20% aluminum oxide, at all roughness values studied, including polished surface. To analyze cell proliferation, they were stained with alizarin red on the surface of a zirconium dioxide material stabilized with yttrium oxide. It has been shown that an increase in roughness leads to increased cell proliferation.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 6","pages":"1656 - 1661"},"PeriodicalIF":0.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527610","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

Effect of Heat Input on the Microstructure and Phase Composition of Additively Manufactured Ti–6Al–4V Alloy

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-01 DOI: 10.1134/S1027451024701453

K. D. Kamelina, A. V. Panin, M. S. Syrtanov

{"title":"Effect of Heat Input on the Microstructure and Phase Composition of Additively Manufactured Ti–6Al–4V Alloy","authors":"K. D. Kamelina, A. V. Panin, M. S. Syrtanov","doi":"10.1134/S1027451024701453","DOIUrl":"10.1134/S1027451024701453","url":null,"abstract":"Optical microscopy and X-ray phase analysis are used to investigate the grain structure and phase composition of Ti–6Al–4V titanium-alloy samples produced by wire-feed electron beam additive manufacturing using a linear strategy. X-ray fluorescence analysis is employed to examine the elemental composition of the Ti–6Al–4V alloy samples fabricated through 3D printing. The samples are rectangular plates cut from bars, which are produced under varying thermal-exposure parameters, specifically different beam currents and 3D-printing speeds. We compare the elemental composition of the printed Ti–6Al–4V samples with that of the wire from which they were produced. The effect of heat-input magnitude on the sizes of primary β‑phase grains and α-phase plates in the samples and the volumetric fraction of the residual β phase is determined. We demonstrate how the sizes of primary β-phase grains and α-phase plates, along with the volumetric fraction of the residual β-phase, change with increasing distance from the contact point of the samples with the substrate. We propose hypotheses regarding the causes of these changes. The effect of the substrate on the elemental and phase composition of the samples is also shown.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 6","pages":"1495 - 1500"},"PeriodicalIF":0.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527698","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

Heat Flux in the Storage Plant of Ultracold Neutrons 超冷中子贮存设备中的热通量

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-01 DOI: 10.1134/S1027451024701647

V. B. Efimov

引用次数: 0

Influence of Morphological and Dimensional Parameters on Cathodoluminescent Properties of ZNO Microstructure Ensemble 形态和尺寸参数对 ZNO 微结构组合阴极发光特性的影响

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-01 DOI: 10.1134/S1027451024701659

A. E. Muslimov, V. V. Krasnova, A. M. Ismailov, L. A. Zadorozhnaya, V. M. Kanevsky

引用次数: 0