Technical PhysicsPub Date : 2024-09-26DOI: 10.1134/S1063784224060367
A. S. Rudy, A. A. Mironenko, V. V. Naumov, A. B. Churilov, S. V. Kurbatov, Yu. S. Egorova, E. A. Kozlov
{"title":"Influence of Varistor Effect and Contact Phenomena on the Characteristics of Solid-State Lithium-Ion Batteries with Semiconductor Electrodes","authors":"A. S. Rudy, A. A. Mironenko, V. V. Naumov, A. B. Churilov, S. V. Kurbatov, Yu. S. Egorova, E. A. Kozlov","doi":"10.1134/S1063784224060367","DOIUrl":"10.1134/S1063784224060367","url":null,"abstract":"<p>The results of measuring the charge-discharge characteristics of solid-state thin-film lithium-ion batteries with a nanocomposite anode based on <i>a</i>-Si(Al) solid solution are presented. The charging characteristics of batteries have a feature in the form of a step on the smooth branch of the charge curve. It is shown that the appearance of the step is associated with the compensation of <i>a</i>-Si(Al) and the change from hole to electron conductivity due to lithiation of the electrode during charging. As a result of lithiation, the electron over-barrier current becomes the main component of the charging current. To maintain a galvanostatic charge mode, the potentiostat increases the voltage by the height of the potential barrier, which leads to the appearance of a step on the charging curve. The impedance of a solid-state thin-film lithium-ion battery of the LiCoO<sub>2</sub>–LiPON–Si@O@Al electrochemical system was measured in the temperature range from –20 to 50°C. A structural model of the accumulator is proposed and the parameters of the structural elements of the model are calculated which provide the best fit for experimental Nyquist diagrams. The obtained values of the electrodes’ resistivity are orders of magnitude higher than the results of direct measurements and data from literary sources. According to the IV-characteristics obtained by cyclic voltammetry the high resistance of the electrodes is due to the metal-semiconductor contact and the varistor effect of the electrode material. The results obtained make significant adjustments to the interpretation of the impedance spectra and structural models of solid-state lithium-ion batteries based on semiconductor materials.</p>","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1742 - 1752"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142413977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Technical PhysicsPub Date : 2024-09-26DOI: 10.1134/S1063784224060264
E. V. Mamontov, R. N. Dyatlov
{"title":"Three-Dimensional Trap with Excitation of Ion Oscillations at the Stability Boundary of the Mathieu Diagram","authors":"E. V. Mamontov, R. N. Dyatlov","doi":"10.1134/S1063784224060264","DOIUrl":"10.1134/S1063784224060264","url":null,"abstract":"<p>Vibrations of charged particles in compositions of three-dimensional high-frequency quadrupole and static homogeneous electric fields in the stable region and in the vicinity of the stability boundary of the Mathieu diagram are investigated. Using a pseudopotential model of a rapidly oscillating field, it is shown that the motion of charged particles during linear scanning of a secular frequency is described by the Airy differential equation. Based on the properties of solutions of the Airy equation, a method of ion mass separation with resonant excitation of oscillations at the stability boundary of the Mathieu diagram has been developed. To implement the method, the ion-optical system of the three-dimensional trap is supplemented with corrective electrodes. Computer modeling has determined the optimal potentials of the correcting electrodes, at which the errors of the distributions of quadrupole and homogeneous fields do not exceed 10<sup>–4</sup> and 2 × 10<sup>–3</sup>. </p>","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1670 - 1675"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Technical PhysicsPub Date : 2024-09-26DOI: 10.1134/S1063784224060124
K. P. Gaikovich, I. V. Malyshev, D. G. Reunov, N. I. Chkhalo
{"title":"The Theory of Axial Tomography Based on the Inverse Radon Transform for High-Aperture Soft X-ray Microscopy","authors":"K. P. Gaikovich, I. V. Malyshev, D. G. Reunov, N. I. Chkhalo","doi":"10.1134/S1063784224060124","DOIUrl":"10.1134/S1063784224060124","url":null,"abstract":"<p>For soft X-ray microscopy in the approximation of geometrical optics, a theoretical model for the formation of the received image is constructed – a relationship is found between the image recorded on the detector and the 3<i>D</i> distribution of the sample absorption index using a high-aperture mirror objective (NA ¿ 0.3) with a focus depth close to the diffraction limit. The solution of the inverse problem of tomography for determining this 3<i>D</i> distribution from the data of measurements in a high-aperture mirror SXR-microscope is obtained.</p>","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1555 - 1567"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Technical PhysicsPub Date : 2024-09-26DOI: 10.1134/S1063784224060409
A. N. Ryabinin, D. V. Kaufman
{"title":"Calculation of the Flow Around an Oscillating Cylinder with a Coaxial Disk in the Head at Low Reynolds Numbers","authors":"A. N. Ryabinin, D. V. Kaufman","doi":"10.1134/S1063784224060409","DOIUrl":"10.1134/S1063784224060409","url":null,"abstract":"<p>The hypothesis of curved models is used to calculate the flow around a cylinder performing damped rotational oscillations in the air flow. The influence of a disk coaxially fixed in the head of the cylinder on the oscillations is studied. The elongation of the cylinder (the ratio of the length of the cylinder to its diameter) is nine. The diameter of the disk is equal to 0.6 of the diameter of the cylinder. It is assumed that the only reason for the damping of on the oscillations is aerodynamic force. The parameters characterizing the attenuation of rotational on the oscillations of the cylinder occurring in the air flow at the Reynolds number Re = 750 are determined. It turned out that the presence of a coaxial disk in the head leads to a faster attenuation of on the oscillations. This fact is in qualitative agreement with the results of an experiment to determine rotational derivatives in a wind tunnel at large Reynolds numbers. The hypothesis of quasi-stationary is applied in the calculation of translation vibrations of the cylinder. The parameter characterizing the damping of vibrations of a cylinder with a disk in absolute magnitude slightly exceeds the same parameter for a cylinder without a disk, which corresponds to the results of the experiment.</p>","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1780 - 1786"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142413970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Technical PhysicsPub Date : 2024-09-26DOI: 10.1134/S1063784224060161
A. V. Kashevarov, A. L. Stasenko
{"title":"Physicomathematical Model of Icing of the Rotating Sphere in a Coaxial Supercooled Gas-Drop Flow","authors":"A. V. Kashevarov, A. L. Stasenko","doi":"10.1134/S1063784224060161","DOIUrl":"10.1134/S1063784224060161","url":null,"abstract":"<p>A physico-mathematical model is proposed for assessing the effect of centrifugal force on the characteristic dimensions of needle-shaped ice formed as a result of the collision of a large supercooled drop with a sphere rotating in a coaxial air flow. The mass loss of droplets upon collision with the surface due to splashing is taken into account. The numerical implementation of the model makes it possible to study the effect of surface properties on the icing process and, in particular, to estimate the ice-free surface area due to centrifugal force.</p>","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1590 - 1595"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142413905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Technical PhysicsPub Date : 2024-09-26DOI: 10.1134/S1063784224060410
S. D. Samuilov, I. P. Shcherbakov, Y. N. Bocharov, S. I. Krivosheev, S. G. Magazinov
{"title":"Magnetohydrodynamic Instability of the Surface Metal Layer Melted by Pulsed Current","authors":"S. D. Samuilov, I. P. Shcherbakov, Y. N. Bocharov, S. I. Krivosheev, S. G. Magazinov","doi":"10.1134/S1063784224060410","DOIUrl":"10.1134/S1063784224060410","url":null,"abstract":"<p>It is shown that the results of dispersion of various materials in the mode of pulsed current action correspond to theoretical estimates of the wavelength of MHD instability. The sizes of the obtained metal grain, including refractory ones, correspond to the modes of exposure, and their microstructure corresponds to the conditions of formation. Modeling in the Comsol Multiphysics environment at a qualitative level revealed the influence of the thickness of the surface layer of the current flow on the dynamics of the formation and separation of liquid metal droplets. It is shown that one of the operating factors that create and increase instabilities is the heterogeneity of the distribution of Lorentz forces in the current supply zone.</p>","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1787 - 1796"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142413984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Technical PhysicsPub Date : 2024-09-26DOI: 10.1134/S106378422406046X
M. V. Volkov, V. A. Garutkin, N. G. Zakharov, G. M. Mishcenko, V. O. Ryabov, F. A. Starikov
{"title":"Modeling of Optical Inhomogeneities in Cr2+:CdSe Lasers with a Moving Active Element","authors":"M. V. Volkov, V. A. Garutkin, N. G. Zakharov, G. M. Mishcenko, V. O. Ryabov, F. A. Starikov","doi":"10.1134/S106378422406046X","DOIUrl":"10.1134/S106378422406046X","url":null,"abstract":"<p>The work is devoted to modeling the heating of moving active elements from CdSe and estimates emerging optical inhomogeneities. Active elements in the form of a parallelepiped are considered, which rotated in a circle perpendicular to the generation axis. As a result of calculations, it was found that the temperature distribution in the active element that occurs during the operation of the laser can be represented as the sum of two components. The first component is formed due to the balance between heat emission in the active element due to pumping and heat removal from it, which leads to the appearance of an aberration, which is the sum of “tilt” and “defocusing”. The second component is formed directly during the passage of the pump spot through the active element, is determined only by the heat release density and is not related to the cooling method of the active element. It leads to the appearance of “Gaussian” aberration, the amplitude of this aberration is directly proportional to the power of heat emission and inversely proportional to the frequency of rotation of the active element.</p>","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1823 - 1831"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Technical PhysicsPub Date : 2024-09-26DOI: 10.1134/S1063784224060203
A. M. Lerer, V. V. Makhno, V. I. Kravchenko
{"title":"Diffraction of Electromagnetic Waves on one-Dimensional Diffraction Gratings Formed by Slots in an Absolutely Absorbing Screen","authors":"A. M. Lerer, V. V. Makhno, V. I. Kravchenko","doi":"10.1134/S1063784224060203","DOIUrl":"10.1134/S1063784224060203","url":null,"abstract":"<p>Two-sided approximate boundary conditions are obtained for an absolutely absorbing (“black”) layer lying on a multilayer dielectric. Paired summation equations (PSEs) are obtained for the tangent components of the electric and magnetic field strengths at the slots. These equations are solved by the Galerkin method with basis functions in the form of Chebyshev and Legendre polynomials. The resulting system of linear algebraic equations has fast internal convergence. To control the accuracy of the obtained solution, a dual problem is solved – a lattice of “black stripes.” In this case, the unknowns in the PSU are the current density on the strips. The properties of lattices are analyzed.</p>","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1611 - 1618"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Technical PhysicsPub Date : 2024-09-26DOI: 10.1134/S1063784224060227
B. A. Loginov, D. Yu. Blinnikov, V. S. Vtorova, V. V. Kirillova, E. A. Liashko, V. S. Makeev, A. R. Pervykh, N. D. Abrosimova, I. Yu. Zabavichev, A. S. Puzanov, E. V. Volkova, E. A. Tarasova, S. V. Obolensky
{"title":"Silicon-on-Insulator Structures Microtopography Transformations Features after Photonic and Corpuscular Radiation Exposure","authors":"B. A. Loginov, D. Yu. Blinnikov, V. S. Vtorova, V. V. Kirillova, E. A. Liashko, V. S. Makeev, A. R. Pervykh, N. D. Abrosimova, I. Yu. Zabavichev, A. S. Puzanov, E. V. Volkova, E. A. Tarasova, S. V. Obolensky","doi":"10.1134/S1063784224060227","DOIUrl":"10.1134/S1063784224060227","url":null,"abstract":"<p>The article presents the results of studies of microrelief parameters and electrophysical characteristics of “silicon on insulator” structures after exposure to gamma and gamma neutron radiation. Experimental studies were carried out using the methods of atomic force microscopy and pseudo-MOS transistor. On the basis of the data obtained, an estimate was made of the average size and area of the space charge of clusters of radiation defects.</p>","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1629 - 1635"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Technical PhysicsPub Date : 2024-09-26DOI: 10.1134/S1063784224060306
D. N. Mirkhanov, Al. F. Gaisin, R. Sh. Basyrov, S. Yu. Petryakov
{"title":"Conducting Fundamental Scientific Research and Exploratory Scientific Research","authors":"D. N. Mirkhanov, Al. F. Gaisin, R. Sh. Basyrov, S. Yu. Petryakov","doi":"10.1134/S1063784224060306","DOIUrl":"10.1134/S1063784224060306","url":null,"abstract":"<p>The work is devoted to the study of the characteristics of a low-temperature plasma of a high-frequency (HF) discharge (<i>f</i> = 13<i>.</i>56 MHz) ignited between metallic and electrolytic electrodes at atmospheric pressure. Burning of an RF discharge in a diffuse (volumetric) form is observed at the interface between the media between the electrodes. Numerical calculations of the electric field strength and the distribution of the volumetric power density of the Joule heat release before breakdown in a vapor-gas mixture near a metal electrode are presented. The discharge radiation spectrum, plasma composition, and electron density were studied by optical emission spectroscopy. The thermograms of the electrode surface under the conditions of an RF discharge are considered.</p>","PeriodicalId":783,"journal":{"name":"Technical Physics","volume":"69 6","pages":"1686 - 1694"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142414125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}