Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques最新文献_第3页

Study of Zinc Implanted Crystalline Quartz 锌注入结晶石英的研究

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-17 DOI: 10.1134/S1027451024702045

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

{"title":"Study of Zinc Implanted Crystalline Quartz","authors":"V. V. Privezentsev, A. A. Firsov, V. S. Kulikauskas, M. I. Voronova, D. A. Kiselev, B. R. Senatulin","doi":"10.1134/S1027451024702045","DOIUrl":"10.1134/S1027451024702045","url":null,"abstract":"The results of a study of crystalline quartz implanted by 64Zn+ ions with a dose of 5 × 1016/cm2 and an energy of 40 keV are presented. The 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 methods used for the study were atomic force microscopy, X-ray diffraction phase analysis, X-ray photoelectron spectroscopy, and Auger electron spectroscopy. It was found that after implantation, the phases of metallic zinc Zn and carbon C were fixed in the near-surface layer. After annealing at 700°C, the zinc oxide phase ZnO appears, and after annealing above 700°C, the zinc silicide phase Zn2SiO4 appears. It was found that after annealing at 400°C the roughness increases by 2 orders of magnitude compared to the state after implantation, and after annealing at 700°C, the roughness of the quartz surface decreases by an order of magnitude compared to annealing at 400°C. After annealing at 700°C, numerous Zn-containing nanoparticles and craters are fixed on the surface and a zinc silicide phase is formed.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 1 supplement","pages":"S186 - S192"},"PeriodicalIF":0.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638546","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

Microstructure and Properties of Protective Ion-Plasma Coating on UFG Ti Alloy UFG钛合金防护离子等离子体涂层的组织与性能

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-17 DOI: 10.1134/S1027451024701969

Ya. N. Savina, S. V. Ovchinnikov, R. R. Valiev, K. S. Selivanov

{"title":"Microstructure and Properties of Protective Ion-Plasma Coating on UFG Ti Alloy","authors":"Ya. N. Savina, S. V. Ovchinnikov, R. R. Valiev, K. S. Selivanov","doi":"10.1134/S1027451024701969","DOIUrl":"10.1134/S1027451024701969","url":null,"abstract":"The paper presents results of comprehensive studies on a fine structure of TiVN ion-plasma protective coating deposited on a Ti–6Al–4V substrate with an ultrafine-grained (UFG) structure. This coating considerably improves the performance properties of critical products operating under high loads in aggressive environments. In the article special attention is paid to features of formation of coating layers and their phase composition with account of effect caused the substrate ultrafine-grained structure. It is established that TiVN functional coating has a layered structure with thin layers of dark and light colors, which can be formed at different ratios of Ti and V concentrations due to planetary rotation of substrates. The structure of a TiVN functional layer is columnar and has an average diameter of about 17 nm. Based on microdiffraction patterns of a TiVN layer, it is found that the reflexes correspond to an fcc structure, which does not have a dominant textural component of growth. This might be conditioned by high level of ion activation of growth and multicomponent nature of the coating being terms for creation and retention of high density of defects. This fine structure of ion-plasma coating on a substrate with UFG structure provides the achievement of high adhesion and erosion resistance.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 1 supplement","pages":"S127 - S135"},"PeriodicalIF":0.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638544","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 Influence of Aluminum Microstructure on the Optical Properties of Refractive Lenses 铝微观结构对折射透镜光学性能影响的研究

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-17 DOI: 10.1134/S1027451024701830

A. S. Narikovich, I. I. Lyatun, I. B. Panormov, A. L. Astafiev, A. A. Barannikov, D. A. Zverev, A. A. Snigirev

引用次数: 0

Effect of Annealing on the Defect Structure, Desorption Properties, and Structural-Phase State in Nanoscale Multilayer Zr/Nb Structures after Hydrogenation 退火对加氢后纳米多层Zr/Nb结构缺陷结构、解吸性能和结构相态的影响

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-17 DOI: 10.1134/S1027451024702136

A. D. Lomygin, D. G. Krotkevich, R. S. Laptev, Zh. Wang, A. A. Sidorin, O. S. Orlov

{"title":"Effect of Annealing on the Defect Structure, Desorption Properties, and Structural-Phase State in Nanoscale Multilayer Zr/Nb Structures after Hydrogenation","authors":"A. D. Lomygin, D. G. Krotkevich, R. S. Laptev, Zh. Wang, A. A. Sidorin, O. S. Orlov","doi":"10.1134/S1027451024702136","DOIUrl":"10.1134/S1027451024702136","url":null,"abstract":"The effect of annealing after hydrogenation on the defect structure, desorption properties, and structural-phase state of nanoscale multilayer Zr/Nb systems has been studied. Nanoscale multilayer structures based on Zr/Nb were fabricated using a magnetron sputtering system with an individual layer thickness of 50 nm. To analyze changes in the defect structure, one of the techniques of positron annihilation spectroscopy was used, Doppler broadening spectroscopy with a positron beam of variable energy for layer-by-layer positron implantation in Zr/Nb. The depth distribution of elements before and after hydrogenation was studied using glow discharge optical emission spectrometry. Analysis of changes in the structural-phase state was carried out using X-ray diffraction analysis. Thermal desorption spectroscopy was used to study the desorption of hydrogen from Zr/Nb, and the activation energy of hydrogen release was calculated by constructing Arrhenius plots. The forms of the Arrhenius plots differ from their usual form, which is associated with a nontypical distribution of hydrogen in Zr/Nb.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 1 supplement","pages":"S245 - S252"},"PeriodicalIF":0.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638101","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

Features of Radiation Physics of Topological Insulators 拓扑绝缘体的辐射物理特性

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-17 DOI: 10.1134/S1027451024702203

B. L. Oksengendler, S. E. Maksimov, S. H. Suleymanov, M. H. Ashurov, I. Nuritdinov, N. N. Nikiforova, F. A. Iskandarova, G. S. Nuzhdov, Z. I. Karimov, A. F. Zatsepin

引用次数: 0

Features of Demagnetization Processes in Two-Dimensional Magnetoplasmonic Crystals Based on Permalloy 基于坡莫合金的二维磁等离子体晶体退磁过程特征

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-17 DOI: 10.1134/S1027451024702100

Z. A. Grigoryeva, K. A. Gritsenko, T. A. Mitrofanov, A. G. Kozlov, A. V. Ognev, V. Komanytsky, V. V. Rodionova, V. K. Belyaev

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Impact of the Preliminary Surface Processing of Chromium-Coated E110 Alloy in a Hydrogen Atmosphere on Its High-Temperature Oxidation Resistance 氢气氛下镀铬E110合金初步表面处理对其高温抗氧化性能的影响

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-17 DOI: 10.1134/S1027451024702148

D. V. Sidelev, K. A. Zinkovskii, D. A. Ashikhmin

{"title":"Impact of the Preliminary Surface Processing of Chromium-Coated E110 Alloy in a Hydrogen Atmosphere on Its High-Temperature Oxidation Resistance","authors":"D. V. Sidelev, K. A. Zinkovskii, D. A. Ashikhmin","doi":"10.1134/S1027451024702148","DOIUrl":"10.1134/S1027451024702148","url":null,"abstract":"This study examines the effect of the preliminary plasma processing of E110 zirconium alloy in an argon–hydrogen mixture on its resistance to high-temperature oxidation in air. A high-frequency (13.56 MHz) inductively coupled plasma source is used to etch pre-oxidized E110 alloy samples in an argon–hydrogen mixture with a flow ratio of 1 : 1 for durations of 4, 8, 16, and 32 min. X-ray diffraction analysis of the samples melted in an inert medium identified the conditions for removing surface zirconium oxide without hydrogen saturation of the alloy. Chromium coatings, 5-µm thick, are applied to the plasma-treated surfaces using multicathode magnetron sputtering at a pressure of 0.2 Pa. Another group of samples undergo ion etching in an argon–hydrogen mixture at an accelerating voltage of 3 kV before the application of chromium coatings. The structural characteristics of the chromium coatings on the E110 alloy surface are analyzed using X-ray diffraction and transmission electron microscopy. The samples are oxidized in air at 1100°C with isothermal exposure for 20 and 60 min. The study establishes that etching the surface of the E110 alloy in high-frequency argon–hydrogen plasma increases the average surface roughness from 0.32 to 0.95 µm. Prolonged surface etching before coating application decreases the diffusion path length for oxygen through the coating to the alloy, thereby decreasing its resistance to high-temperature oxidation.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 1 supplement","pages":"S253 - S261"},"PeriodicalIF":0.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638276","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

Electric Arc Synthesis of Nonstoichiometric Tantalum Carbides with a Face-Centered Cubic Lattice 电弧合成具有面心立方晶格的非化学计量型碳化钽

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-17 DOI: 10.1134/S1027451024702185

A. Ya. Pak, A. P. Korchagina, A. A. Svinukhova, T. Yu. Yakich, K. B. Larionov, Zh. S. Bolatova

{"title":"Electric Arc Synthesis of Nonstoichiometric Tantalum Carbides with a Face-Centered Cubic Lattice","authors":"A. Ya. Pak, A. P. Korchagina, A. A. Svinukhova, T. Yu. Yakich, K. B. Larionov, Zh. S. Bolatova","doi":"10.1134/S1027451024702185","DOIUrl":"10.1134/S1027451024702185","url":null,"abstract":"In this paper, we report experimental results that show the feasibility of synthesizing ultrarefractory materials, namely crystalline phases of cubic tantalum carbide with a face-centered cubic lattice and different carbon-to-tantalum ratios. Experimental powder was synthesized using a low-voltage direct current arc discharge ignited in open air to heat up mixtures of different compositions (tantalum–carbon). The implementation of the nonvacuum electric arc method was carried out due to the self-shielding effect of the reaction zone of the arc reactor due to the sudden generation of CO and CO2 gases. The synthesis yielded tantalum carbides TaC0.77, TaC0.84, TaC0.92, and TaC1.00 with lattice parameters of 4.4194, 4.4322, 4.4448, and 4.4588 Å, respectively. The lattice parameters were determined by X-ray diffractometry. The morphological features of tantalum carbide powder particles obtained by vacuum-free electric arc synthesis were determined using scanning electron microscopy. The method of synchronous thermal analysis detected some differences in the oxidation processes of the resulting crystalline phases when heated in air. For the first time, cubic tantalum carbide phases with different stoichiometry were obtained in a series of experiments performed using vacuum-free arc synthesis.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 1 supplement","pages":"S280 - S289"},"PeriodicalIF":0.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638277","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 Change in the Phase Composition of the Y–Al–O Coating System and its Structure during Vacuum Arc Deposition 真空电弧沉积过程中Y-Al-O涂层体系相组成及结构变化的研究

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-17 DOI: 10.1134/S1027451024701866

A. A. Maslov, N. A. Aleksandrovich, N. A. Yunirovich, K. N. Ramazanov, O. A. Valerievich

{"title":"Study of the Change in the Phase Composition of the Y–Al–O Coating System and its Structure during Vacuum Arc Deposition","authors":"A. A. Maslov, N. A. Aleksandrovich, N. A. Yunirovich, K. N. Ramazanov, O. A. Valerievich","doi":"10.1134/S1027451024701866","DOIUrl":"10.1134/S1027451024701866","url":null,"abstract":"Recently the development and research of new heat-resistant coatings that improve the performance of parts in aggressive environments is becoming increasingly relevant. This is especially important in the production of gas turbine engine parts, gas pumping units and turbochargers of internal combustion engines. There is active research for compositions of metal and ceramic coatings capable of replacing the widely used MCrAlY composition, where M–Ni or Co, variations of which are known as SDP and VSDP alloys known for heat resistance and resistance to oxygen diffusion to the substrate. These compositions are characterized by high adhesive strength to heat-resistant alloys with various spraying technologies, therefore new heat-resistant coatings should not be inferior to them in adhesive strength. The research of structural and phase transformations during the deposition of coatings in a reaction gas environment seems very perspective. One of the most common methods of functional coating deposition is vacuum arc deposition in a reaction gas environment. This allows to achieve a high deposition rate, process controllability, good adhesion and ensure the content of necessary chemical compounds in the coating, depending on the reaction gas supplied to the chamber. This article investigates in situ phase transformations in the coating of the Y–Al–O system during vacuum arc deposition on stationary samples using synchrotron radiation and presents the results of an analysis of the structure and elemental composition. It is shown that in the case of deposition on stationary samples during in situ synchrotron radiation, a mixture of Y2O3 oxide, pure yttrium and aluminum is formed in the coating. The thickness of the formed coating is about 10 microns, ensuring continuity and a small number of defects.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 1 supplement","pages":"S51 - S57"},"PeriodicalIF":0.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638374","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 Impact Ionization on the Laser Ablation of Silicon Surface by Ultrashort Pulses in the Near and Mid-IR Range 冲击电离对近、中红外超短脉冲激光烧蚀硅表面的影响

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Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Pub Date : 2025-03-17 DOI: 10.1134/S1027451024701891

E. I. Mareev, A. V. Pushkin, F. V. Potemkin

{"title":"Influence of Impact Ionization on the Laser Ablation of Silicon Surface by Ultrashort Pulses in the Near and Mid-IR Range","authors":"E. I. Mareev, A. V. Pushkin, F. V. Potemkin","doi":"10.1134/S1027451024701891","DOIUrl":"10.1134/S1027451024701891","url":null,"abstract":"We investigated the influence of impact ionization on the laser ablation of silicon using ultrashort pulses in the near and mid-infrared ranges. Using electron microscopy and numerical modeling of the ionization process based on dynamical rate equations, we demonstrated that the transition to the mid-IR range significantly changes the mechanisms of plasma generation. In the near-IR range, photoionization (both multiphoton and tunneling) predominates, while the contribution of avalanche ionization becomes dominant for pulse durations exceeding 500 fs. Consequently, the smallest size of microstructures on the silicon surface during laser ablation is achieved for picosecond pulses, where the electron concentration in the generated plasma is low and laser beam defocusing is negligible. In contrast, in the mid-IR range, impact ionization becomes the dominant mechanism for increasing the electron density of the plasma, enabling high spatial resolution during the ablation process at the shortest pulse durations, as impact ionization proves to be more effective. The results of this study contribute to a better understanding of the mechanisms of laser radiation interaction with material surfaces and can be applied to optimize laser processing techniques in various fields.","PeriodicalId":671,"journal":{"name":"Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques","volume":"18 1 supplement","pages":"S78 - S83"},"PeriodicalIF":0.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638425","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