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Phase transformations under thermal treatment in Al-12%Si-Zr system with metastable structure synthesized by compression plasma flows impact 压缩等离子体流冲击合成亚稳Al-12%Si-Zr体系的热处理相变
8th International Congress on Energy Fluxes and Radiation Effects Pub Date : 2022-11-14 DOI: 10.56761/efre2022.c3-o-017802
N. Cherenda, N. Bibik, V. Astashynski, A. Kuzmitski
{"title":"Phase transformations under thermal treatment in Al-12%Si-Zr system with metastable structure synthesized by compression plasma flows impact","authors":"N. Cherenda, N. Bibik, V. Astashynski, A. Kuzmitski","doi":"10.56761/efre2022.c3-o-017802","DOIUrl":"https://doi.org/10.56761/efre2022.c3-o-017802","url":null,"abstract":"Phase transformations in Al-12%Si surface layer after alloying with Zr atoms by plasma impact and following thermal treatment at 450–550°C were studied in this work. Plasma impact resulted in formation of a metastable τ 1 phase with tetragonal structure D0 22 in the alloyed layer. The volume fraction of τ 1 diminished with growth of energy density absorbed by the surface layer and increase of temperature during annealing. The decomposition of the τ 1 phase and the formation of ZrSi 2 upon annealing for 30 min was observed at a temperature of 550°C.","PeriodicalId":156877,"journal":{"name":"8th International Congress on Energy Fluxes and Radiation Effects","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133872398","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
Формирование поверхностного сплава Mo-Zr с помощью низкоэнергетического сильноточного электронного пучка 莫-Zr表面合金的形成是由低能量强电子束产生的。
8th International Congress on Energy Fluxes and Radiation Effects Pub Date : 2022-11-14 DOI: 10.56761/efre2022.n1-p-037601
В. Ю. Петров, Е. В. Яковлев, А. В. Соловьев, Е.А. Пестерев, А. Б. Марков
{"title":"Формирование поверхностного сплава Mo-Zr с помощью низкоэнергетического сильноточного электронного пучка","authors":"В. Ю. Петров, Е. В. Яковлев, А. В. Соловьев, Е.А. Пестерев, А. Б. Марков","doi":"10.56761/efre2022.n1-p-037601","DOIUrl":"https://doi.org/10.56761/efre2022.n1-p-037601","url":null,"abstract":"Представлены результаты исследований по формированию Mo-Zr поверхностного сплава на Zr подложке с помощью низкоэнергетического сильноточного электронного пучка (НСЭП). Сплав формировался путем чередования операций напыления пленки молибдена на подложку и последующей НСЭП обработки с различной плотность энергии полученной системы пленка/подложка в едином вакуумном цикле. Исследована морфология, элементный состав, а также распределение молибдена по глубине образцов с поверхностным сплавом. Обнаружено, что для рассматриваемых режимов формирования поверхностного сплава происходит образование сетки трещин и пор на поверхности образцов. Показано, что с увеличением плотности энергии НСЭП при формировании поверхностного сплава поверхность становится более однородной, количество пор уменьшается, и при плотности энергии 5.5 Дж/см2 полностью отсутствуют. Исследование элементного состава показало, что увеличение плотности энергии приводит к легированию молибденом на большую глубину и формированию более однородного по толщине поверхностного сплава.","PeriodicalId":156877,"journal":{"name":"8th International Congress on Energy Fluxes and Radiation Effects","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133075666","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
Electrostatic cumulation: a convenient research instrument to obtain Mbar pressures in solids 静电累积:一种方便的研究仪器，可以获得固体中的毫巴压力
8th International Congress on Energy Fluxes and Radiation Effects Pub Date : 2022-11-14 DOI: 10.56761/efre2022.s1-p-044901
S. Anishchenko, V. Baryshevsky, A. Gurinovich
{"title":"Electrostatic cumulation: a convenient research instrument to obtain Mbar pressures in solids","authors":"S. Anishchenko, V. Baryshevsky, A. Gurinovich","doi":"10.56761/efre2022.s1-p-044901","DOIUrl":"https://doi.org/10.56761/efre2022.s1-p-044901","url":null,"abstract":"Magnetic cumulation is not the sole phenomenon capable to produce high-dense electron beams in relativistic vacuum diodes. Electrostatic cumulation phenomenon also exists and reveals at much lower accelerating voltages in relativistic diodes with a ring-type cathode. A distinctive feature of electrostatic cumulation is quite low spread of electron energies in the produced high-dense beam. These circumstances give advantages to electrostatic cumulation phenomenon if the latter is considered as a convenient research instrument for high energy density physics. Electrostatically cumulated electron beam with energy of 400 keV is capable of exciting a shock wave with an amplitude of 0.25 Mbar in a tungsten plate, which can be used to compress a target. Research can be carried out using one high-current beam or several.","PeriodicalId":156877,"journal":{"name":"8th International Congress on Energy Fluxes and Radiation Effects","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133583768","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
Применение Pd-Ba покрытия в пеннинговском ионном источнике
8th International Congress on Energy Fluxes and Radiation Effects Pub Date : 2022-11-14 DOI: 10.56761/efre2022.c1-o-028101
А.Г. Садилкин, Николай Николаевич Щитов
{"title":"Применение Pd-Ba покрытия в пеннинговском ионном источнике","authors":"А.Г. Садилкин, Николай Николаевич Щитов","doi":"10.56761/efre2022.c1-o-028101","DOIUrl":"https://doi.org/10.56761/efre2022.c1-o-028101","url":null,"abstract":"Рассмотрен метод улучшения рабочих характеристик газоразрядного ионного источника пеннинговского типа, основанный на применении палладий-бариевого (Pd-Ba) покрытия его катодов. Покрытие наносилось методом магнетронного распыления, толщина покрытия составляла несколько микрометров. Для достижения рабочих параметров ИИ покрытие в составе электровакуумного прибора активировалось методом отбора током в остаточной атмосфере водорода. Температура активации была существенно ниже той, что используется в СВЧ приборах в условиях высокого вакуума. После активации наблюдалось улучшение разрядных характеристик ИИ за счёт снижения потенциала горения разряда (при одинаковом давлении). Также был установлен факт повышения доли атомарных ионов в экстрагируемом из ИИ пучке. Эффект снижения потенциала горения объясняется применением эмиссионно-активной добавки (бария), а повышения доли атомарных ионов в экстрагируемом пучке каталитическим действием палладия.","PeriodicalId":156877,"journal":{"name":"8th International Congress on Energy Fluxes and Radiation Effects","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133591364","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 a voltage pulse rise time and pressure of air and nitrogen on the parameters of runaway electron beams 电压脉冲上升时间和空气、氮气压力对失控电子束参数的影响
8th International Congress on Energy Fluxes and Radiation Effects Pub Date : 2022-11-14 DOI: 10.56761/efre2022.s5-p-000702
D. Beloplotov, V. Tarasenko, D. A. Sorokin
{"title":"Influence of a voltage pulse rise time and pressure of air and nitrogen on the parameters of runaway electron beams","authors":"D. Beloplotov, V. Tarasenko, D. A. Sorokin","doi":"10.56761/efre2022.s5-p-000702","DOIUrl":"https://doi.org/10.56761/efre2022.s5-p-000702","url":null,"abstract":"The generation of runaway electron beams with different high-voltage generators has been studied. The current of runaway electron beams generated during breakdown in air and nitrogen at a pressure range of 25–100 kPa was measured. It has been shown the conditions for electron runaway are easily realized at voltage pulse rise time of up to 200 ns. It has been found that to measure electron beam current at minimum voltages (tens of kilovolts) and a long rise time of the voltage pulse, anodes from a grid with a small cell size should be used. It follows from this work and the results of our previous studies that the generation of a runaway electron initiates the formation of a streamer, the development of which leads to an initial drop in the voltage across the gap.","PeriodicalId":156877,"journal":{"name":"8th International Congress on Energy Fluxes and Radiation Effects","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132687717","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
Mixed-mode magnetron and arc deposition of aluminum oxide films 混合模式磁控管和电弧沉积氧化铝薄膜
8th International Congress on Energy Fluxes and Radiation Effects Pub Date : 2022-11-14 DOI: 10.56761/efre2022.c4-o-022801
V. Oskirko, I. Goncharenko, V. Semenov, M. Azhgikhin, M.I. Goncharenko, A. Solovyev
{"title":"Mixed-mode magnetron and arc deposition of aluminum oxide films","authors":"V. Oskirko, I. Goncharenko, V. Semenov, M. Azhgikhin, M.I. Goncharenko, A. Solovyev","doi":"10.56761/efre2022.c4-o-022801","DOIUrl":"https://doi.org/10.56761/efre2022.c4-o-022801","url":null,"abstract":"The paper is devoted to the study of the processes of mixed-mode deposition of aluminum oxide films in oxygen and argon mixture. Mixed-mode is a new pulsed thin film deposition technology that combines magnetron sputtering and arc evaporation. The transition of the magnetron discharge to the arc occurs when the discharge current reaches the threshold value, and the arc burning time is controlled by pulse length. The paper describes the experimental equipment and the principles of controlling the parameters of a combined pulse discharge. The results of measuring the ion current density on a substrate and the deposition rate of aluminum oxide films in mixed-modes at different powers of magnetron and arc discharges are presented. Stable initiation of an arc discharge in a pulsed mode with a “poisoned” cathode surface occurs at a cathode current density of 0.4–0.6 A/cm2. With the same average discharge power in mixed-mode, a higher average ion current density on a substrate, higher coating deposition rate and more intensity of plasma radiation are provided, compared with medium-frequency magnetron sputtering.","PeriodicalId":156877,"journal":{"name":"8th International Congress on Energy Fluxes and Radiation Effects","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132748213","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
Исследование СВС – процессов в термически – сопряженной слоевой порошковой системе (Ni + Al)/(PbO2 + B + Al2O3 + стекло) 简易爆炸装置(Ni + Al)/(PbO2 + B + Al2O3 +玻璃)
8th International Congress on Energy Fluxes and Radiation Effects Pub Date : 2022-11-14 DOI: 10.56761/efre2022.n1-p-040401
Александр Михайлович Шульпеков, Р. М. Габбасов
{"title":"Исследование СВС – процессов в термически – сопряженной слоевой порошковой системе (Ni + Al)/(PbO2 + B + Al2O3 + стекло)","authors":"Александр Михайлович Шульпеков, Р. М. Габбасов","doi":"10.56761/efre2022.n1-p-040401","DOIUrl":"https://doi.org/10.56761/efre2022.n1-p-040401","url":null,"abstract":"Исследован процесс распространения фронта волны горения в двухслойной порошковой системе (Ni + Al)/(PbO2 + B + Al2O3+ стекло). Обнаружен эффект расширения волны экзотермического процесса при добавлении смеси PbO2 + B в нижний слой. Добавление смеси PbO2 + B в нижний слой позволяет снизить толщину слоя NiAl и обеспечить формирование однородного диэлектрического покрытия. Установлены оптимальные соотношения толщин слоев и состава порошковой смеси слоев.","PeriodicalId":156877,"journal":{"name":"8th International Congress on Energy Fluxes and Radiation Effects","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133116932","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
Nonlinear amplification of powerful terahertz pulses by electron bunches 电子束对强太赫兹脉冲的非线性放大
8th International Congress on Energy Fluxes and Radiation Effects Pub Date : 2022-11-14 DOI: 10.56761/efre2022.s3-p-033703
D. Krygina, Yu. S. Oparina, A. Savilov
{"title":"Nonlinear amplification of powerful terahertz pulses by electron bunches","authors":"D. Krygina, Yu. S. Oparina, A. Savilov","doi":"10.56761/efre2022.s3-p-033703","DOIUrl":"https://doi.org/10.56761/efre2022.s3-p-033703","url":null,"abstract":"There is a concept of the amplifier based on a principally non-linear effect of reflection of an electron bunch from the powerful wave pulse. This is effective mechanism of energy extraction by the wave from particles, when parameters of the electron bunch (initial energy spread, bunch length and emittance) haven’t significant influence on the efficiency of the electron-wave interaction. Two schemes of possible realization of this process (non-resonant and resonant electron-wave interaction) are described.","PeriodicalId":156877,"journal":{"name":"8th International Congress on Energy Fluxes and Radiation Effects","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131323585","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
Numerical model of high current plasma source 大电流等离子体源的数值模型
8th International Congress on Energy Fluxes and Radiation Effects Pub Date : 2022-11-14 DOI: 10.56761/efre2022.s6-p-021102
D. Shmelev, S. Chaikovsky, I. Uimanov, A. Rousskikh, V. Oreshkin
{"title":"Numerical model of high current plasma source","authors":"D. Shmelev, S. Chaikovsky, I. Uimanov, A. Rousskikh, V. Oreshkin","doi":"10.56761/efre2022.s6-p-021102","DOIUrl":"https://doi.org/10.56761/efre2022.s6-p-021102","url":null,"abstract":"In this paper, we numerically analyze a “capillary” type plasma source used to create plasma liners in gas puff z-pinch experiments. It is shown that erosion from a plasma source of this type, observed in the experiment, is provided by evaporation of the electrodes. Moreover, the main contribution comes from evaporation from the anode. The calculation results are in qualitative agreement with the experimental data.","PeriodicalId":156877,"journal":{"name":"8th International Congress on Energy Fluxes and Radiation Effects","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115409441","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
Температурное тушение катодолюминесценции примесно-дефектных центров в алмазе в диапазоне температур 300–800 К 钻石表面有缺陷中心在300 - 800 k温度下的温度抑制
8th International Congress on Energy Fluxes and Radiation Effects Pub Date : 2022-11-14 DOI: 10.56761/efre2022.n4-o-909501
А. Г. Бураченко, Д.А. Переседова, Александр Александрович Крылов, В. С. Рипенко, Е. Ю. Липатов, К. П. Артёмов
{"title":"Температурное тушение катодолюминесценции примесно-дефектных центров в алмазе в диапазоне температур 300–800 К","authors":"А. Г. Бураченко, Д.А. Переседова, Александр Александрович Крылов, В. С. Рипенко, Е. Ю. Липатов, К. П. Артёмов","doi":"10.56761/efre2022.n4-o-909501","DOIUrl":"https://doi.org/10.56761/efre2022.n4-o-909501","url":null,"abstract":"Исследованы спектры катодолюминесценции синтетических алмазных образцов, содержащих различный примесно-дефектный состав, в диапазоне температур от 300 до 800 К. Получены данные о температурном тушении экситонной катодолюминесценции и катодолюминесценции NV центров. Обнаружено, что скорость температурного тушения NV0 центров относительно NV– центров выше в диапазоне температур 300–800 К.","PeriodicalId":156877,"journal":{"name":"8th International Congress on Energy Fluxes and Radiation Effects","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124359090","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
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