2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE)最新文献_第5页

Investigation of the Kinetics of the SHS Process, Initiated Using Electron-Beam Technology 利用电子束技术研究SHS过程的动力学

2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE) Pub Date : 2020-09-14 DOI: 10.1109/EFRE47760.2020.9241900

S. Fedorov, M. Kozochkin, T. Maung, E. Mustafaev

{"title":"Investigation of the Kinetics of the SHS Process, Initiated Using Electron-Beam Technology","authors":"S. Fedorov, M. Kozochkin, T. Maung, E. Mustafaev","doi":"10.1109/EFRE47760.2020.9241900","DOIUrl":"https://doi.org/10.1109/EFRE47760.2020.9241900","url":null,"abstract":"The duration of SHS processes occurring in thin films or in near-surface layers of the product is several tens of milliseconds. Under these conditions, the effectiveness of monitoring the reaction of the formation of a new phase can ensured if there is a monitoring system that can build based on processing acoustic emission signals that have shown high sensitivity to transformations occurring in the surface layers of the material. However, a flexible system supplemented with a waveguide which can change its dynamic characteristics and amplitude-frequency response. Experiments have shown that using a wire with a cross-section of up to 2.5 mm2 as flexible waveguides allows reliable control of vibroacoustic processes in a vacuum chamber at frequencies up to 40 kHz at a distance of more than 2 meters without pre-tensioning. The influence of compaction when removing a conductor of sufficient cross-section from the vacuum chamber insignificantly worsens the values of the transmission coefficients. The article discusses the work of such a system, for example, of monitoring the formation of intermetallic compounds when exposed to pulse low-energy high-current electron beam on the plate of aluminum coated with a thin film of a heat-resistant Nickel alloy. Thanks to the analysis of vibroacoustic signals, it is possible to see how the exothermic chemical reaction proceeds, when the signal character changes. The clusters of points are formed on the graphs, distinguishable in the corresponding coordinates.","PeriodicalId":190249,"journal":{"name":"2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128204123","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

Modelling Line Profiles in the Helium Spectra Excited By an Alternating Electric Field 交变电场激励下氦谱线轮廓的建模

2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE) Pub Date : 2020-09-14 DOI: 10.1109/EFRE47760.2020.9241966

E. Koryukina, V. Koryukin

引用次数: 0

Investigation of Regularities of High-Intensity Ion Implantation in Combination with Subsequent Exposure to the Surface of a High-Current Electron Beam 高强度离子注入结合随后暴露于高电流电子束表面的规律研究

2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE) Pub Date : 2020-09-14 DOI: 10.1109/EFRE47760.2020.9242058

A. Ryabchikov, S. Dektyarev, O. Korneva, I. Lopatin, D. Sivin, Y. Ivanov

{"title":"Investigation of Regularities of High-Intensity Ion Implantation in Combination with Subsequent Exposure to the Surface of a High-Current Electron Beam","authors":"A. Ryabchikov, S. Dektyarev, O. Korneva, I. Lopatin, D. Sivin, Y. Ivanov","doi":"10.1109/EFRE47760.2020.9242058","DOIUrl":"https://doi.org/10.1109/EFRE47760.2020.9242058","url":null,"abstract":"Low energy, high intensity ion implantation method opens up unique opportunities for ion-doping of metals and alloys at depths of tens and hundreds of micrometers. Ion implantation at ion current densities of tens and hundreds of mA/cm2 is carried out at elevated temperatures of the surface layers of the irradiated target. High temperatures can lead to an increase in the grain size of crystalline materials and, as a result, to a degradation of material properties. One of the possible solutions to this problem seems to be a combination of high-intensity implantation of ions with subsequent exposure to the surface of a high-current electron beam. The paper presents the results of studies of the features of changes in the elemental composition and microstructure of titanium alloy during high-intensity implantation of nitrogen, aluminum ions of low and ultra-low energy. The influence of the target temperature regimes on the depth distribution of the implanted dopant and the structure of doped and matrix material is studied. The influence of subsequent modification of the ion-doped layer by the action on the surface of the pulsed high-current electron beams of microsecond duration is studied. The work presents the results of the studying the regularities of changes in the depth distribution of alloying elements, microstructure and phase composition of the modified and matrix layers by optical metallography, x-ray spectral and x-ray structural analysis.","PeriodicalId":190249,"journal":{"name":"2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE)","volume":"09 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130742107","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: 2

Investigation of the Relative Reactivity of Unsaturated Volatile Organic Compounds in Air Under the Action of Pulsed Corona Discharge Plasma 脉冲电晕放电等离子体作用下空气中不饱和挥发性有机化合物的相对反应性研究

2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE) Pub Date : 2020-09-14 DOI: 10.1109/EFRE47760.2020.9242056

I. Filatov, V. Uvarin, D. Kuznetsov

{"title":"Investigation of the Relative Reactivity of Unsaturated Volatile Organic Compounds in Air Under the Action of Pulsed Corona Discharge Plasma","authors":"I. Filatov, V. Uvarin, D. Kuznetsov","doi":"10.1109/EFRE47760.2020.9242056","DOIUrl":"https://doi.org/10.1109/EFRE47760.2020.9242056","url":null,"abstract":"Unsaturated volatile organic compounds (VOCs) are an important pollutant of industrial ventilation air emissions. The presence of a double bond in the composition of their molecules increases their reactivity with respect to plasma components generated by a pulsed corona discharge. This paper presents studies of the influence of the nature and structure of unsaturated VOCs on the efficiency of their destruction under the action of pulsed corona discharge with a duration of 20–45 ns. The method of competing reactions based on the investigation of mixtures of the studied compounds is proposed as a research tool. The method allows us to determine the relative reactivity of compounds with high accuracy and identify the main mechanisms. The obtained results showed that the cleaning efficiency for compounds that do not contain chlorine in their composition correlates well with their reactivity with respect to ozone. Halogen-containing unsaturated compounds, in contrast, are resistant to ozone and are removed more efficiently in nitrogen than in air. The found regularities will be useful for the development of air purification systems in the production of plastics and processes involving halogen-containing solvents.","PeriodicalId":190249,"journal":{"name":"2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132901685","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 the Geometry of Cathode Microprotrusions on the Parameters of the Explosive Emission Processes 阴极微突起几何形状对爆炸发射过程参数的影响

2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE) Pub Date : 2020-09-14 DOI: 10.1109/EFRE47760.2020.9242075

E. Oreshkin, V. Oreshkin, S. Barengolts, G. Mesyats, Konstantin V. Khischenko

引用次数: 0

Pulse Source of Electrons Based on the Pyroeffect 基于焦效应的脉冲电子源

2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE) Pub Date : 2020-09-14 DOI: 10.1109/EFRE47760.2020.9241922

L. Orlikov, Xenia Mambetova, S. Arestov, S. Shandarov, N. Burimov, B. Avdochenko, A. Elchaninov

引用次数: 1

Features of the Synthesis of TiCAl (Fe2O3/TiO2) Metal Matrix Composites under Nonequilibrium Conditions 非平衡条件下合成tic (Fe2O3/TiO2)金属基复合材料的特点

2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE) Pub Date : 2020-09-14 DOI: 10.1109/EFRE47760.2020.9242118

A. Knyazeva, E. Korosteleva, I. Nikolaev

{"title":"Features of the Synthesis of TiCAl (Fe2O3/TiO2) Metal Matrix Composites under Nonequilibrium Conditions","authors":"A. Knyazeva, E. Korosteleva, I. Nikolaev","doi":"10.1109/EFRE47760.2020.9242118","DOIUrl":"https://doi.org/10.1109/EFRE47760.2020.9242118","url":null,"abstract":"In this study, the structure formation of multicomponent composites based on Ti-C-Al, Ti-Al-C-Fe2O3 and Ti-Al-C-TiO2 powder mixtures under combine synthesis are considered. The features of Ti-C-Al, Ti-Al-C-Fe2O3 and Ti-Al-C-TiO2 composition synthesis that was accompanied by the formation of MAX phases and intermetallic compounds with different properties is studied theoretically and experimentally. An attempt is made to determine conditions and compositions of the starting powder mixtures for the powders composite materials with a complex multiphase structure. It is shown that during simultaneous process of wave combustion and metallothermy the inclusion and a matrix structure are formed with fundamentally different properties. Depending on the combination of the initial powder mixtures a metal matrix composite or ceramic composite can be formed. Metallothermal reactions initiated to obtain composites with oxide inclusions (in Ti-Al-C-Fe2O3 and Ti-Al-C-TiO2 powder systems) results in the occurrence of the non-equilibrium phases. These phases are not predicted from the preliminary thermodynamic evaluation but can be predicted based on thermokinetic models that include a set of possible chemical stages. It was shown that, in addition to intermetallic phases, the composition of the synthesis products includes the Ti2AlC phase which could be synthesized both in the combination with Fe2O3 and using TiO2.","PeriodicalId":190249,"journal":{"name":"2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114161473","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: 1

Synthesis of Nanodiamonds from Fuel Oil Processing Products Using an Arc Discharge 用电弧放电从燃料油加工产品中合成纳米金刚石

2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE) Pub Date : 2020-09-14 DOI: 10.1109/EFRE47760.2020.9241990

A. Saifutdinova, B. Timerkaev, A. Saifutdinov

引用次数: 1

Formation and Dynamics of the Current Sheath in the Plasma Shell of a Z-Pinch in the Microsecond Implosion Regime 微秒内爆条件下z箍缩等离子体壳层电流鞘层的形成和动力学

2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE) Pub Date : 2020-09-14 DOI: 10.1109/EFRE47760.2020.9241970

V. Kokshenev, A. Rousskikh, A. Shishlov, A. Zhigalin, N. Kurmaev, R. Baksht, R. Cherdizov, Vladimir I. Oreshkin

{"title":"Formation and Dynamics of the Current Sheath in the Plasma Shell of a Z-Pinch in the Microsecond Implosion Regime","authors":"V. Kokshenev, A. Rousskikh, A. Shishlov, A. Zhigalin, N. Kurmaev, R. Baksht, R. Cherdizov, Vladimir I. Oreshkin","doi":"10.1109/EFRE47760.2020.9241970","DOIUrl":"https://doi.org/10.1109/EFRE47760.2020.9241970","url":null,"abstract":"The structure and characteristics of the current sheath formed in a metal-puff with an external plasma shell were studied with a current flowing up to 2.5 MA in amplitude with a microsecond rise time. It is shown that in the system used, a compact and uniform in azimuth current sheath is formed already in the early stage of implosion, which stabilizes the process of compression of the liner from large diameters in the microsecond regime. The thickness of the current sheath decreases as it moves toward the center, and the average current density increases and amounts to tens of kA/cm2. According to B-dot data, the velocity of the current sheath exceeds the speed of sound in the liner plasma, leading to the appearance of a shock wave and compression of the plasma on the axis. A stable shell with a high current density, together with a density profile formed in the Z-pinch configuration, ensures stable liner implosion from an initial diameter of 32 cm to a pinch with a diameter of several mm.","PeriodicalId":190249,"journal":{"name":"2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE)","volume":"216 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116588419","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

Skin Explosions of Stepped Cylindrical Copper Conductors 阶梯圆柱形铜导体的蒙皮爆炸

2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE) Pub Date : 2020-09-14 DOI: 10.1109/EFRE47760.2020.9242175

S. Chaikovsky, I. Datsko, N. Labetskaya, D. Rybka, Vladimir I. Oreshkin

引用次数: 0