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Отверждение труб из полимерных композиционных материалов с использованием микроволнового излучения
Электронная обработка материалов. 2017. Т. 53. № 4. С. 74–77.
Nefedov V. N., Mamontov A. V., Simonov V., Афанасьев В. В.
Гущина В. А., / Series chemrxiv-2023-vpzhz-v2 "ChemRxiv". 2023.
All-inorganic perovskite CsPbBr3 and Cs4PbBr6 nanoparticles are being intensively studied due to their unique properties and wide range of applications; however, however, the nature of their optical properties is not yet fully understood due to the difficulty of synthesis of singlephase nanoparticles. In this article we describe the features of the synthesis of single-phase particles ...
Added: May 14, 2026
Pilé I., Deng Y., Shchur L., / Series arXiv "math". 2026. No. 2604.10254.
We investigate the spatial overlap of successive spin configurations in Markov chain Monte Carlo simulations using the local Metropolis algorithm and the Svendsen-Wang and Wolff cluster algorithms. We examine the dynamics of these algorithms for two models in different universality classes: the Ising model and the Potts model with three components. The overlap of two ...
Added: April 20, 2026
Павленко В. И., Bondarenko G., Черкашина Н. И. et al., Перспективные материалы 2025 № 9 С. 22–31
Проведен синтез композитного материала на основе полиэтилена, карбида бора (B4C) и
оксида висмута (Bi2O3) методом совместный криогенного помола всех компонентов в среде
жидкого азота с дальнейшим прессованием. Изучено влияние криогенного помола на
распределение наполнителей в композите и дана оценка перспективности использования
данного метода, по сравнению с традиционными способами смешения компонентов
полимерных композитов. Исследования структуры и свойств готового композита проводили
методами сканирующей ...
Added: September 17, 2025
Kagan M., Silkin V. M., Efremov D. V., / Series arXiv "math". 2024. No. 2411.12836.
In this study, we analyze the dielectric function of high-Tc cuprates as a function of doping level, taking into account the full energy band dispersion within the CuO2 monolayer. In addition to the conventional two-dimensional (2D) gapless plasmon mode, our findings reveal the existence of three anomalous branches within the plasmon spectrum. Two of these branches ...
Added: November 27, 2024
Influence of anisotropy on the study of critical behavior of spin models by machine learning methods
Sukhoverkhova D., Shchur L., / Series arXiv "math". 2024. No. 2410.14523.
In this paper, we applied a deep neural network to study the issue of knowledge transferability between statistical mechanics models. The following computer experiment was conducted. A convolutional neural network was trained to solve the problem of binary classification of snapshots of the Ising model's spin configuration on a two-dimensional lattice. During testing, snapshots of ...
Added: October 21, 2024
Mozolenko V., Fadeeva Marina, Shchur L., / Series arXiv "math". 2024. No. 2405.10865.
The development of new algorithms for simulations in physics is as important as the development of new analytical methods. In this paper we present a comparison of the recently developed microcanonical population annealing (MCPA) algorithm with the rather mature Wang-Landau algorithm. The comparison is performed on two cases of the Potts model exhibiting a first ...
Added: May 20, 2024
Kagan M., Аксёнов С. В., / Series Research Square "Research Suqare". 2024. No. 1.
We study different resonances (first of all of the Fano type) in the interference device formed by the Aharonov-Bohm ring with superconducting (SC) wire in the topologically nontrivial state playing a role of a bridge between top and bottom arms. We analyze Majorana modes on the ends of the SC wire and show that the collapse of the ...
Added: April 10, 2024
Ребров Я. В., Glazkov V., Murtazoev A. F. et al., / Series cond-mat "arxiv.org". 2023.
Nabokoite family compounds ACu7(TeO4)(SO4)5Cl (A=Na, K, Cs, Rb) are one of the candidates for the evasive spin-liquid state predicted for highly-frustrated square kagome lattice (SKL). Their magnetic subsystem includes SKL layers decorated by additional copper ions. All members of this family are characterized by quite high Curie-Weiss temperatures (∼80−200 K), but magnetic ordering was reported ...
Added: January 29, 2024
Shurakov A., Kaurova N., Belikov I. et al., / Series Physics "arxiv.org". 2022.
In this paper, we report on the method of nondestructive quality control that can be used in fabrication of GaAs high-speed electronics. The method relies on the surface potential mapping and enables rigid in vivo analysis of transport properties of an active electronic device incorporated into a complex integrated circuit. The study is inspired by ...
Added: September 15, 2023
Pugach N., Safonchik M. O., Belotelov V. et al., / Series "cond-mat". 2022. No. 2110.00369.
A detailed investigation of a superconducting spin-triplet valve is presented. This spin-valve consists of a superconducting film covering a metal with an intrinsic spiral magnetic order, which could result from competing isotropic exchanges or, if the crystal lattice breaks central symmetry, from asymmetric Dzyaloshinskii-Moriya exchange. Depending on the anisotropy, such a metal may change its ...
Added: November 16, 2022
Novikov S. V., / Series cond-mat "arxiv.org". 2022. No. 2209.14955.
Charge transport in amorphous semiconductors having spatially correlated exponential density of states (DOS) has been considered for the arbitrary behavior of the correlation function of random energies. Average carrier velocity is exactly calculated for the quasi-equilibrium (nondispersive) transport regime. For the symmetric exponential DOS with exponential tails for low and high energies and non-positive correlation ...
Added: November 1, 2022
Mamontov A. V., Nefedov V. N., Khritkin S. A., Измерительная техника 2022 № 6 С. 46–51
The actual problem of accelerating and reducing the energy costs of the sheet polymer composite material heat treatment technological process is considered. It is shown that to solve this problem, it is advisable to use the microwave radiation energy as a heating source. The main advantages of the microwave method of the sheet polymer composite ...
Added: October 24, 2022
Ikhsanov R., Mazur E., Kagan M., / Series "Working papers by Cornell University". 2022. No. 2202.01452.
At present, the task of searching for compounds with a high superconducting transition temperature is a very relevant scientific direction. Usually, the calculation of is carried out by numerically solving the system of Eliashberg equations. In this paper, a set of programs for solving this system written in various forms on the imaginary axis is ...
Added: February 4, 2022
Budkov Y., Zavarzin S., Kolesnikov A. L., Journal of Physical Chemistry C 2021 Vol. 125 No. 38 P. 21151–21159
We formulate a general mean-field theory for a flat electric double layer in ionic liquids and electrolyte solutions with ions possessing static polarizability and a permanent dipole moment on a charged electrode. We establish a new analytical expression for electric double-layer differential capacitance, determining it as an absolute value of the ratio of the local ...
Added: September 16, 2021
Sanina N., Isaeva U., Utenyshev A. et al., Inorganica Chimica Acta 2021 Vol. 527 Article 120559
A new inhibitor of phosphodiesterase (PDE), i.e., nitric oxide (NO) donor, a water soluble DNIC Na[Fe(C7H5N4S)2(NO)2]⋅2.5H2O (1), has been synthesized. The structure of the new complex, its physical-chemical properties in the solid state and in solutions have been studied experimentally (X-ray analysis, IR, UV-Vis, Mossbauer spectroscopy, mass-spectrometry, and amperometry) and theoretically (quantum-chemical modeling by DFT ...
Added: September 16, 2021
Mamontov A. V., Nefedov V. N., Nazarov I. et al., Измерительная техника 2021 № 4 С. 44–48
The actual problem of accelerating and reducing the energy costs of the foam concrete slabs heat treatment technological process is considered. It is shown that to solve this problem, it is advisable to use the microwave radiation energy as a heat source. The main advantages of the microwave method of foam concrete slabs heat treatment ...
Added: May 15, 2021
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
Nefedov V. N., Измерительная техника 2019 № 5 С. 52–56
Предложен метод построения микроволновых установок с продольным взаимодействием. Установки такого типа формируют равномерное распределение температуры по поперечному сечению стержней из полимерных композиционных материалов. Представлены результаты теоретических и экспериментальных исследований распределения температуры по поперечному сечению материала стержня, а также параметры микроволновой установки. ...
Added: July 9, 2019
Nefedov V. N., Banov D. K., Bushuev V. D., , in: 2018 International Conference on Actual Problems of Electron Devices Engineering (APEDE).: Саратов: IEEE, 2018. P. 381–386.
The main parameters of beam-type microwave installation with frequency of the electromagnetic field oscillations 2450 MHz, the microwave output power of 4,8 kW for the heat treatment of a carbon fiber parabolic antenna, with heat-resistant epoxy binder, of the aperture diameter 1200 mm, thickness 5 mm are presented. The main results of the temperature distribution ...
Added: October 31, 2018
Nefedov V. N., Махмудов С. А., , in: 2018 International Conference on Actual Problems of Electron Devices Engineering (APEDE).: Саратов: IEEE, 2018. P. 376–380.
A model and method for calculating the temperature distribution of a wide range of materials in a microwave beam-type unit taking into account the reflective walls of the chamber is supposed. The experimental and modeling characteristics of the temperature distribution over the thickness of a homogeneous dielectric material at different distances from the walls of ...
Added: October 30, 2018
Nefedov V. N., Afanas'ev V. V., Ryabikina I. G., , in: 2018 International Conference on Actual Problems of Electron Devices Engineering (APEDE).: Саратов: IEEE, 2018. P. 371–375.
The results of the microwave radiation influence of the electromagnetic field oscillation frequency of 2450 MHz on the process of curing thermosetting epoxy resins, which are used as a binder in the production of polymer composite materials based on basalt, glass and carbon fibers, are presented. It is shown that the density of the cured ...
Added: October 30, 2018
Nefedov V. N., Mamontov A. V., Simonov V. et al., Measurement Techniques 2018 Vol. 61 No. 3 P. 265–270
A method is proposed for constructing radial type microwave devices forming a uniform temperature distribution throughout the volume of pipes made of polymer composite materials The results of theoretical and experimental investigations of the temperature distribution across the thickness of the pipe material are given. The advantages of microwave technologies for curing polymer composite aterials ...
Added: October 9, 2018
Nefedov V. N., Мамонтов А. В., Simonov V. et al., Измерительная техника 2018 № 3 С. 42–46
The method of construction of the radial type microwave devices forming the uniform temperature distribution in the volume of polymer composite pipes is suggested. The results of theoretical and experimental studies of the temperature distribution along the thickness of the pipe material are presented. The advantages of microwave technology for the curing of polymeric composite ...
Added: April 16, 2018
Nefedov V. N., Saygin I., Хохлов М. Е. et al., T-Comm: Телекоммуникации и транспорт 2017 Т. 11 № 6 С. 33–38
В работе рассмотрены перспективы применения наукоёмких микроволновых технологий в процессах отверждения полимерных композиционных материалов на основе углеродных, базальтовых и стеклянных волокон. Применение энергии микроволнового излучения в качестве источника тепла позволяет реализовать качественно новый уровень производства композиционных материалов, характеризующийся экологической чистотой, энергетической эффективностью и высокой скоростью технологических процессов. Экспериментальные исследования отверждения полимерных композиционных материалов проведены в ...
Added: August 2, 2017