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Горение частиц при взаимодействии излучения гиротрона со смесью порошков металл/диэлектрик 回旋加速器辐射与金属/电介质粉末混合燃烧
Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.09.56214.127-23
З. А. Заклецкий, Н. Г. Гусейн-заде, Д. В. Малахов, Л.В. Бадьянова, Е. В. Воронова, В. Д. Степахин
{"title":"Горение частиц при взаимодействии излучения гиротрона со смесью порошков металл/диэлектрик","authors":"З. А. Заклецкий, Н. Г. Гусейн-заде, Д. В. Малахов, Л.В. Бадьянова, Е. В. Воронова, В. Д. Степахин","doi":"10.21883/jtf.2023.09.56214.127-23","DOIUrl":"https://doi.org/10.21883/jtf.2023.09.56214.127-23","url":null,"abstract":"As a result of interaction under normal conditions in an air atmosphere of a microwave pulse of a gyrotron with a mixture of Al/Al2O3 powders, ceramic particles of morphology microprocesses are synthesized. A variant of a multi-stage process for the development of physical and chemical processes in a reactor, taking into account ignition. After the end of the microwave pulse, a cloud is observed consisting of hot aluminum oxide particles and burning aluminum particles. A certain influence of the combustion process of aluminum particles on the products of plasma-chemical synthesis. The paper also determines the average velocity of particles from the powder mixture, the burning time of aluminum particles, the surface temperature of the particles of the powder mixture, and the temperature of the gaseous medium in the upper part of the plasma-chemical reactor.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83333119","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
Теория квазистатического магнитоэлектрического взаимодействия в трехслойных асимметричных пьезомагнитострикционных структурах 三层不对称压强结构中的准静电相互作用理论
Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.02.54497.193-22
Дмитрий Александрович Филиппов, Т. А. Галкина, И.Н. Маничева
{"title":"Теория квазистатического магнитоэлектрического взаимодействия в трехслойных асимметричных пьезомагнитострикционных структурах","authors":"Дмитрий Александрович Филиппов, Т. А. Галкина, И.Н. Маничева","doi":"10.21883/jtf.2023.02.54497.193-22","DOIUrl":"https://doi.org/10.21883/jtf.2023.02.54497.193-22","url":null,"abstract":"The work is devoted to the theoretical investigation of the quasi-static magnetoelectric interaction in three-layer structures consisting of a piezoelectric and two magnetic layers with positive and negative magnetostriction. Using the system of elasto- and electrostatics equations for the piezoelectric and magnetostrictive phases, expressions for the electrical response of the structure in a magnetic field are obtained. The contributions from longitudinal and bending deformations are taken into account in value of ME interactions. It is shown that the use of an asymmetric three-layer asymmetric structure leads to an increase in the magnitude of the ME interaction by almost an order of magnitude compared to a two-layer structure. The dependences of the effect magnitude on the thickness of the third layer for the nickel/lead zirconate titanate/metglas structure are presented.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82940847","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 процесса гидрогенизации одностенных углеродных нанотрубок с помощью индукционно-связанной аргон-водородной плазмы 单链碳纳米管氢化过程研究
Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.07.55741.71-23
Е.И. Преображенский, А В Водопьянов, А. В. Нежданов
{"title":"Исследование процесса гидрогенизации одностенных углеродных нанотрубок с помощью индукционно-связанной аргон-водородной плазмы","authors":"Е.И. Преображенский, А В Водопьянов, А. В. Нежданов","doi":"10.21883/jtf.2023.07.55741.71-23","DOIUrl":"https://doi.org/10.21883/jtf.2023.07.55741.71-23","url":null,"abstract":"In this article it was demonstrated the possibility of partial hydrogenation of single-walled carbon nanotubes using an inductively coupled argon-hydrogen plasma. It was studied the changes in the Raman spectrum of samples of single-walled carbon nanotubes during plasma hydrogen intercalation with depending on the treatment time, the discharge power, the substrate material on which the nanotubes were deposited, and the control external voltage. The predominant role of hydrogen ions in the hydrogenation of single-walled carbon nanotubes has been demonstrated.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78717651","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
Особенности разрушения микроструи разбавленного полимерного раствора на основные и спутниковые микрокапли под действием внешнего вибрационного воздействия 外部振动影响下，稀释聚合物溶液对基本和卫星微滴的破坏特性
Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.01.54061.198-22
Н.А. Хомутов, А. Е. Семенова, М. В. Белоногов, Антонио Ди Мартино, Е.А. Хан, Михаил Пискунов
{"title":"Особенности разрушения микроструи разбавленного полимерного раствора на основные и спутниковые микрокапли под действием внешнего вибрационного воздействия","authors":"Н.А. Хомутов, А. Е. Семенова, М. В. Белоногов, Антонио Ди Мартино, Е.А. Хан, Михаил Пискунов","doi":"10.21883/jtf.2023.01.54061.198-22","DOIUrl":"https://doi.org/10.21883/jtf.2023.01.54061.198-22","url":null,"abstract":"An experimental study of the morphology of the laminar microjet flow of diluted aqueous solutions of sodium alginate without and with the addition of hydroxyethyl cellulose after a nozzle subject to external vibration stimulation by the action of the reverse piezoelectric effect was carried out. We studied the influence of the polymer concentration in the solution (0.5-5 mg/ml), the flow rate of the liquid (4-26 ml/min), and the frequency of the current of external perturbation (0-1.2 kHz) on the capillary crushing of the microjet with a diameter of about 210 um in the range of Ohnesorge numbers from 0.046 to 1.88 and Reynolds numbers 0.7 to 470. The modes of microjet flow and crushing on microdroplets with indication of boundaries of transitions between them are selected, and a general map of modes is built. Taking into account the polymer concentration in the solution, the dependence of the microjet fracture length on its velocity is shown. The conditions of monodisperse microjet destruction with equidistant arrangement of the main microdroplets in the flow are determined, which are related to an optimal balance between the molecular mass of the polymer in the solution, the intensity of external disturbance and the time of stress relaxation in polymer viscoelastic microjets. The role of formation of structures such as «beads-on-filament» in capillary destruction of microjet with identification of cases of absence of occurrence of «satellite» microdroplets from liquid threads between the main microdroplets has been studied. The results are applied to technologies based on in-air microfluidics (bioengineering and additive technologies), dealing with heterogeneous fluids with viscoelastic properties.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89078071","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
Особенности формирования нитевидной структуры микроволнового разряда в потоке аргона 氩流微波放电线状结构形成特性
Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.01.54068.226-22
С.В. Синцов, А В Водопьянов, А. Н. Степанов, Д.А. Мансфельд, Н. В. Чекмарев, Е.И. Преображенский, А.А. Мурзанев, А.В. Ромашкин
{"title":"Особенности формирования нитевидной структуры микроволнового разряда в потоке аргона","authors":"С.В. Синцов, А В Водопьянов, А. Н. Степанов, Д.А. Мансфельд, Н. В. Чекмарев, Е.И. Преображенский, А.А. Мурзанев, А.В. Ромашкин","doi":"10.21883/jtf.2023.01.54068.226-22","DOIUrl":"https://doi.org/10.21883/jtf.2023.01.54068.226-22","url":null,"abstract":"This paper presents the results of an experimental study of the spatial structure of a microwave discharge maintained in an argon flow by gyrotron radiation in a continuous mode with a frequency of 24 GHz at atmospheric pressure. In the structure of the plasma plume, stationary filamentary channels are observed, elongated along the direction of the argon flow, regardless of the orientation of the external electric field of the wave, surrounded by a diffusion halo. Measurements of the electron density, vibrational and rotational temperatures of gas molecules in plasma filaments have been carried out. The role of gas-dynamic mechanisms responsible for the formation of the inhomogeneous static structure of the plasma torch and the maintenance of a substantially nonequilibrium distribution of temperature characteristics in the discharge is discussed.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88951993","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
Метод теплового баланса для расчета режимов охлаждения крупногабаритной оптики в вакуумных условиях 在真空条件下计算大型光学冷却模式的热平衡方法
Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.05.55454.253-22
А.В. Завацкая, Ю А Резунков
{"title":"Метод теплового баланса для расчета режимов охлаждения крупногабаритной оптики в вакуумных условиях","authors":"А.В. Завацкая, Ю А Резунков","doi":"10.21883/jtf.2023.05.55454.253-22","DOIUrl":"https://doi.org/10.21883/jtf.2023.05.55454.253-22","url":null,"abstract":"The heat balance method is developed to optimize cooling modes of large-sized optics in a special cryogenic-vacuum system by considering a complicated heat transfer in the system to minimize the optics thermal deformations.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88981432","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
Спектрофотометрический метод исследования устойчивости комплексов поздних лантаноидов 色谱光度测定法
Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.04.55038.276-22
Ц.Б. Сумянова, В.Р. Прижилевская, Н. Е. Борисова
{"title":"Спектрофотометрический метод исследования устойчивости комплексов поздних лантаноидов","authors":"Ц.Б. Сумянова, В.Р. Прижилевская, Н. Е. Борисова","doi":"10.21883/jtf.2023.04.55038.276-22","DOIUrl":"https://doi.org/10.21883/jtf.2023.04.55038.276-22","url":null,"abstract":"Представлены результаты исследования влияния центрального иона металла на устойчивость комплексов гадолиния и гольмия с диамидом 1,10'-фенантролин-2,9-дикарбоновой кислоты. Полученные значения констант устойчивости комплексов оказались на порядок ниже, чем известные ранее величины для комплексов этих элементов с диамидом 4,7-дихлор-1,10'-фенантролин-2,9-дикарбоновой кислоты. Ключевые слова: спектрофотометрия, гадолиний, гольмий, контрастные вещества.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80142043","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
Влияние комбинированного ионного и электронного облучения на полосу люминесценции 2 eV в гексагональном нитриде бора 复合离子和电子辐射对六氮硼的发光带2 eV
Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.07.55746.62-23
Юрий Владимирович Петров, О.А. Гогина, О.Ф. Вывенко, S. Kovalchuk, K. Bolotin
{"title":"Влияние комбинированного ионного и электронного облучения на полосу люминесценции 2 eV в гексагональном нитриде бора","authors":"Юрий Владимирович Петров, О.А. Гогина, О.Ф. Вывенко, S. Kovalchuk, K. Bolotin","doi":"10.21883/jtf.2023.07.55746.62-23","DOIUrl":"https://doi.org/10.21883/jtf.2023.07.55746.62-23","url":null,"abstract":"Point defects in wide-bandgap semiconductors, in particular in hexagonal boron nitride, are promising candidates for single-photon emitters, used in quantum informatics. We investigated cathodoluminescence of ion beam induced defects in hexagonal boron nitride, as well as the effect of prolonged electron irradiation on the intensity of the luminescence. It has been shown that the intensity of both band-to-band emission and defect related emission decreased after ion irradiation, and during subsequent electron irradiation the intensity of 2 eV luminescence band increased, whereas the intensity of other bands remained unchanged.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86206436","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
Визуализация магнитных полей в растровом электронном микроскопе 电子式显微镜内磁场可视化
Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.07.55762.81-23
Д.А. Татарский, Е. В. Скороходов, Сергей Анатольевич Гусев
{"title":"Визуализация магнитных полей в растровом электронном микроскопе","authors":"Д.А. Татарский, Е. В. Скороходов, Сергей Анатольевич Гусев","doi":"10.21883/jtf.2023.07.55762.81-23","DOIUrl":"https://doi.org/10.21883/jtf.2023.07.55762.81-23","url":null,"abstract":"The fundamental possibility of measuring the stray fields distributions of magnetic objects in a scanning electron microscope is demonstrated. The main idea of the method is to use a sample holder for operation in the mode of a scanning transmission microscope, additionally equipped with a square diffraction grating. This grating, formed on the basis of a metal film, is placed at some distance under the magnetic sample. Reconstruction of the deflections of transmitted electrons by analyzing the geometric phase from visible distortions of the diffraction grating made it possible to reconstruct the distribution of the magnetic field created by the sample under study.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91518375","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
Влияние радиационного воздействия на магнитные свойства пленок ферромагнетик/IrMn с обменным сдвигом 辐射影响铁磁/IrMn带交换位移的磁性
Журнал технической физики Pub Date : 2023-01-01 DOI: 10.21883/jtf.2023.07.55744.72-23
Д.О. Кривулин, И.Ю. Пашенькин, Р.В. Горев, П.А. Юнин, M.В. Сапожников, А. В. Грунин, Светлана Александровна Захарова, Виктор Николаевич Леонтьев
{"title":"Влияние радиационного воздействия на магнитные свойства пленок ферромагнетик/IrMn с обменным сдвигом","authors":"Д.О. Кривулин, И.Ю. Пашенькин, Р.В. Горев, П.А. Юнин, M.В. Сапожников, А. В. Грунин, Светлана Александровна Захарова, Виктор Николаевич Леонтьев","doi":"10.21883/jtf.2023.07.55744.72-23","DOIUrl":"https://doi.org/10.21883/jtf.2023.07.55744.72-23","url":null,"abstract":"In this work, the effect of the action of gamma quanta and neutrons on the magnetic properties of Ta/feromagnet/IrMn/Ta bilayer films with an exchange bias of the hysteresis loop is studied. The samples were fabricated by magnetron sputtering, and their structure was studied by small-angle X-ray reflectometry and X-ray diffractometry. The measurement of the magnetic hysteresis loops of the irradiated and non-irradiated samples was carried out by the methods of magneto-optical Kerr magnetometry. As a result, the effect of broadening of the magnetic hysteresis loop after irradiation was found. The maximum broadening of the hysteresis loop was observed in the NiFe/IrMn film under neutron irradiation; in this case, the loop width increased by more than 2.5 times. No noticeable change in the field of the exchange bias of the hysteresis loops was observed in the entire range of radiation exposure.","PeriodicalId":24036,"journal":{"name":"Журнал технической физики","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85743391","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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