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Modeling of an Impact of Thin Insulating Film on the Electrode Surface on Discharge Ignition in Mercury Illuminating Lamps at Low Ambient Temperatures
Приборы и методы измерений. 2019. Vol. 10. No. 1. P. 7-13.
In this work, a model of the low-current discharge in the argon–mercury mixture at the existence of a thin insulating film on the cathode surface is developed. It takes into account, besides of the ion-electron emission from the cathode surface, the field electron emission from the cathode metal substrate into the film, caused by the strong electric field generated in it in the discharge.
Bondarenko G.G., Kristya V. I., Savichkin D. O., Russian Physics Journal 2017 Vol. 60 No. 2 P. 346-353
A theoretical model of the cathode sheath of a normal glow discharge for the cathode with a thin insulating film is developed. In addition to the ion-electron emission, the field emission of electrons from the metal cathode substrate into the film under the action of the strong electric field generated in the insulator is taken ...
Added: June 8, 2017
Bondarenko G., Кристя В. И., Савичкин Д. О., Известия высших учебных заведений. Физика 2017 Т. 60 № 2 С. 129-134
Построена теоретическая модель катодного слоя нормального тлеющего разряда при наличии на поверхности катода тонкой диэлектрической пленки. В ней, кроме ионно-электронной эмиссии, учитывается также полевая эмиссия электронов из металлической подложки катода в пленку под действием возникающего в диэлектрике сильного электрического поля. Установлено, что влияние полевой электронной эмиссии на характеристики тлеющего разряда определяется эмиссионной эффективностью пленки, равной ...
Added: April 6, 2017
Боровицкая И. В., Пименов В. Н., Грибков В. А. et al., Металлы 2020 № 2 С. 88-99
Проведено исследование структурно-фазовых изменений в поверхностных слоях образцов
ферритно-мартенситных сталей Eurofer 97 и 10Х9ВФА в результате воздействия мощных импульсных потоков дейтериевой плазмы и ионов дейтерия, генерируемых в установке «Плазменный фокус» (ПФ). Перед испытаниями стали подвергались стандартной термической обработке
(нормализация и отпуск), а образцы стали 10Х9ВФА помимо этого дополнительно отжигали
600 ч при 600 °C для определения стабильности структуры ...
Added: March 5, 2020
Skazochkin A. V., Bondarenko G.G., Zukowski P., Приборы и методы измерений 2020 Vol. 11 No. 3 P. 212-221
The aim of the article was to study the hardness of a metal surface modified with ultrafine particles of minerals by two different methods (instrumental indentation and Vickers hardness measurement) and a comparative analysis of the measurement results obtained by these methods.Standard Vickers hardness measurements at loads of 0.025, 0.1, and 0.5 kgf showed a ...
Added: September 23, 2020
Andreev D. V., Bondarenko G.G., Andreev V. V. et al., Inorganic Materials: Applied Research 2021 Vol. 12 No. 2 P. 517-520
In the paper we demonstrate that the thermal doping of SiO2 film by phosphorus, causing formation of thin film of phospho-silicate glass on its surface, allows to rise charge stability of gate dielectric of MIS structure. We have ascertained that a presence of the film of phospho-silicate glass has given a possibility to significantly lower ...
Added: April 2, 2021
Loganathan N., Bowers G. M., Yazaydin A. O. et al., Journal of Physical Chemistry C 2018 Vol. 122 No. 41 P. 23460-23469
The intercalation of H2O, CO2, and other fluid species in expandable clay minerals (smectites) may play a significant role in controlling the behavior of these species in geological C-sequestration and enhanced petroleum production and has been the subject of intensive study in recent years. This paper reports the results of a computational study of the ...
Added: October 20, 2018
Bondarenko G.G., Fisher M. R., Kristya V. I., Vacuum 2016 Vol. 129 P. 188-191
A model of the low-current (Townsend) discharge in argonemercury mixture in the presence of a thin insulating oxide film on the cathode is developed. It takes into account the cathode ion-electron emission and the electron emission from the cathode metal substrate under the strong electric field generated in the film by the ion surface charge. ...
Added: June 29, 2016
Boldyrev K., Романов А., Хаула Е. et al., Journal of the American Ceramic Society 2019 Vol. 102 No. 5 P. 2745-2751
Single crystal of TlCl was doped with NIR photoluminescent univalent bismuth cations by prolonged immersion in liquid bismuth metal. The ion exchange Tl+ + Bi0 ↔ Tl0 + Bi+ at the crystal surface with subsequent Bi+ migration to the bulk are expected to drive the doping process. Contrary with Bi‐doped TlCl crystals, grown by Bridgman method, the ion exchange does ...
Added: February 8, 2019
Zhukov A., Kryzhanovskaya N., Moiseev E. et al., Физика и техника полупроводников 2020 Т. 54 № 6 С. 570-574
A model is developed that makes it possible to analytically determine the threshold current of a microdisk laser with consideration for its self-heating as a function of the ambient temperature and the microlaser diameter. It is shown that there exists a minimum microdisk diameter determined by self-heating, up to which continuous-wave lasing can be reached ...
Added: September 15, 2020
Epifanov N.A., Bondarenko G.G., Gribkov V. A. et al., Procedia Manufacturing 2019 Vol. 37 P. 500-507
Shock waves actions upon materials perspective for using in future thermonuclear fusion reactors are investigated experimentally and by means of numerical modelling. The shocks are generated by powerful streams of plasma and fast ions in Dense Plasma Focus devices as well as by irradiation with a laser operating in a Q-spoiled mode. Power flux densities ...
Added: January 10, 2020
Туханова В. Ю., Современные наукоемкие технологии. Региональное приложение 2017 № 1 С. 77-85
In article it is considered engineering confectioning of materials for sewing products. The factors, influencing stability of a design of host of sewing product, interaction of indicators of properties of components of a package of materials are investigated. Also are experimentally investigated confection and technological ways of strengthening of a design of host; problem zones ...
Added: November 15, 2020
В.А. Дударев, Иванова Л. Д., Нихезина И. Ю. et al., Физика и техника полупроводников 2017 Т. 51 № 8 С. 1028-1030
Thermoelements for thermoelectric coolers from fine-crystalline
materials based on antimony and bismuth chalcogenide
solid solutions of p- and n-type conductivities, obtained by hot
pressing and extrusion from powders, made by melt spinning,
were studied. Calculations of modules’ properties were performed
in the range of 100−400K, taking into account temperature
dependencies of thermoelectric parameters of legs, and the parameters
of thermoelectric legs’ matching ...
Added: October 30, 2019
ФГБНУ "НИИ ПМТ", 2019
Труды содержат представленные на конференцию доклады из вузовских, академических и отраслевых организаций России и стран СНГ (Армении, Азербайджана, Белоруссии, Казахстана, Узбекистана). В опубликованных докладах содержатся новые результаты исследований процессов образования, миграции и эволюции радиационных дефектов в твердых телах, радиационно-технологических методов модифицирования и обработки материалов с целью улучшения их эксплуатационных свойств, эффектов радиационно-стимулированной диффузии, радиационно-индуцированной сегрегации ...
Added: August 16, 2019
Yana V. Grishina, Kukushkin V., Victor V. Solovyev et al., Optics Express 2018 Vol. 26 No. 17 P. 22519-22527
Apart from the main plasmon-polariton resonance of the surface-enhanced Raman scattering (SERS) occurring at 480 - 530 nm, an additional resonance was observed for substrates with two silver layers separated by a dielectric layer which support extra plasmon modes with decreased group velocities. The novel SERS resonance is shifted towards lower energies and has comparable ...
Added: November 26, 2019
Trainov K., Salikov R., Luponosov Y. et al., Mendeleev Communications 2019 Vol. 29 No. 3 P. 304-306
First representatives of a novel class of compounds containing an electron-accepting hydrazonocyclopentadiene moiety, π-conjugated phenylene spacer, and electron-donating triphenylamine moiety have been synthesized. Investigation of their optical, electrochemical and photovoltaic properties revealed a high potential of the hydrazonocyclopentadiene acceptor moiety in the design of donor-acceptor compounds for organic photovoltaics. ...
Added: October 14, 2020
Dmitrii Demin, Ivan Zakhariev, Taisia Labutina et al., Journal of Chemical Technology and Metallurgy 2018 Vol. 53 No. 2 P. 380-385
In this study the process of a hot laboratory rolling of a round bar on the flat rolls was studied by laboratory
experiments and numerical modelling in order to evaluate the effect of boundary conditions and simulation techniques
on the model predictions. The computer simulations of rolling process were performed by two different techniques
based on Finite Element ...
Added: July 3, 2018
Ястребинский Р. Н., Bondarenko G., Карнаухов А. А., Перспективные материалы 2021 № 9 С. 24-33
В работе представлены экспериментальные исследования радиационно-защитных свойств материала на основе модифицированного гидрида титана по отношению к гамма- и нейтронному излучению точечных радиоизотопных источников в барьерной и сплошной геометриях защиты. Оценка амплитудного распределения гамма-излучения по толщине материала защиты показала значительное снижение мощности эквивалентной дозы гамма излучения в энергетическом интервале 180-250 кэВ, что обусловлено эффектом комптоновского рассеивания. ...
Added: August 25, 2021
Bondarenko G.G., Dubinina M. S., Kristya V. I., Technical Physics 2020 Vol. 65 No. 5 P. 826-831
A model of the electric field enhanced thermal (thermo-field) emission of electrons from the metal
cathode substrate into a thin insulating film on its surface is developed. A system of equations for the cathode
surface temperature in the arc discharge and the electric field strength in the film, providing the required discharge
current density, is formulated. It is ...
Added: May 26, 2020
Sorgente D., Palumbo G., Piccininni A. et al., CIRP Journal of Manufacturing Science and Technology 2018 No. 20 P. 29-35
Mechanical performances of titanium biomedical implants manufactured by superplastic forming are strongly related to the process parameters: the thickness distribution along the formed sheet has a key role in the evaluation of post-forming characteristics of the prosthesis. In this work, a finite element model able to reliably predict the thickness distribution after the superplastic forming ...
Added: December 1, 2017
Mamontov A. V., Nefedov V. N., Khritkin S. A., Измерительная техника 2019 № 4 С. 57-61
A method for constructing traveling wave type microwave device with a transverse interaction, forming a uniform temperature distribution over the volume of polymer composite rods is proposed. The results of theoretical and experimental studies of the temperature distribution of the rod material are presented. Advantages of microwave technologies of curing of polymeric composite materials in ...
Added: September 3, 2019
Sattayaporn S., Loiseau P., Aka G. et al., Journal of Luminescence 2020 Vol. 219 P. 116895
Single crystals of Pr3+ doped hexa-aluminate Sr0.7La0.3Mg0.3Al12O19 (ASL) were prepared for spectroscopic
characterization. We investigated their optical spectroscopic properties in σ and π polarization of light. Absorption
spectra were recorded in extended spectral range, 400 nm–5400 nm. Energies of Pr3+ crystal field states
were determined. In addition to the major D3h sites, minor sites were found. Judd-Ofelt analysis was performed:
the ...
Added: October 22, 2020
М. : [б.и.], 2021
Тематика Трудов конференции охватывает фундаментальные и прикладные вопросы взаимодействия плазмы и ионов с поверхностью - столкновительные процессы, ориентационные эффекты, распыление и рассеяние частиц, структурные повреждения, деградация и улучшение физико-механических свойств материалов при воздействии корпускулярного излучения и др. ...
Added: September 12, 2021
Kiselyova N. N., Dudarev V., Ryazanov V. V. et al., Inorganic Materials: Applied Research 2021 Vol. 12 No. 2 P. 328-336
New chalcospinels of the most common compositions were predicted: AIBIIICIVX4 (X = S or Se)
and AIIBIIICIIIS4 (A, B, and C are various chemical elements). They are promising for the search for new
materials for magneto-optical memory elements, sensors, and anodes in sodium-ion batteries. The parameter
“a” values of their crystal lattice are estimated. When predicting, only the ...
Added: April 2, 2021
T. Karabassov, A.V. Guravova, A.Yu. Kuzin et al., Beilstein Journal of Nanotechnology 2020 Vol. 11 P. 252-262
We present a quantitative study of the current–voltage characteristics (CVC) of SFIFS Josephson junctions (S = bulk superconductor, F = metallic ferromagnet, I = insulating barrier) with weak ferromagnetic interlayers in the diffusive limit. The problem is solved in the framework of the nonlinear Usadel equations. We consider the case of a strong tunnel barrier ...
Added: February 13, 2020