Zobrazeno 1 - 10
of 232
pro vyhledávání: '"D A Gaponova"'
Publikováno v:
Semiconductors. 53:1363-1366
Residual-photoconductivity spectra (RPS) are studied for HgTe/CdHgTe quantum-well heterostructures of n- and p-type conduction at T = 4.2 K. RPS is shown to be both positive (an increase in the carrier concentration in the quantum well) and negative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::419c4b07ffe70c527af9bbeba756fe10
https://doi.org/10.1134/s106378261910021x
https://doi.org/10.1134/s106378261910021x
Autor:
A. V. Shcherbakov, R. V. Rodyakina, A. S. Kozhechenko, V. P. Rubtsov, N. M. Vakhmyanin, D. A. Gaponova
Publikováno v:
Surface Engineering and Applied Electrochemistry. 55:232-240
This work analyzes the manufacturing process of an electron-beam additive form by heating as a result of remelting the supplied filler wire as a control object. Control actions and output values are designated that can be used in constructing a contr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d9e8e3b2258464bb4c7637cd9e99d2c
https://doi.org/10.3103/s1068375519020133
https://doi.org/10.3103/s1068375519020133
Autor:
A V Shcherbakov, D A Gaponova, A V Gudenko, A P Sliva, R V Rodyakina, A L Goncharov, S A Ovechnikov, V K Dragunov
Publikováno v:
Journal of Physics: Conference Series. 2275:012011
The mathematical formulation of electron beam melting and liquid metal transfer model in wire-based additive manufacturing with temperature dependencies of thermophysical properties is described. A description of the model algorithmic implementation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::767fa2abccc572bd6721d4381c67e92d
https://doi.org/10.1088/1742-6596/2275/1/012011
https://doi.org/10.1088/1742-6596/2275/1/012011
Publikováno v:
2021 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM).
A mathematical model, proposed by the authors to study the processes of nonlinear heat transfer during electron-beam deposition with direct feeding of filler material into the heating source influence zone, is described. The model is implemented in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f556d39f623e2a659754336d66d02c2e
https://doi.org/10.1109/icieam51226.2021.9446391
https://doi.org/10.1109/icieam51226.2021.9446391
Publikováno v:
AIP Conference Proceedings.
In the last decade, great interest has been shown in the introduction of additive technologies, in which wire is used as a feed material. Such technologies are characterized by high productivity, low cost of the filler material and provide the possib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a607deb018dd27c0b6696f0b7a44e60c
https://doi.org/10.1063/5.0071254
https://doi.org/10.1063/5.0071254
Autor:
Sergey A. Dvoretsky, V. I. Gavrilenko, D. M. Gaponova, K. V. Maremyanin, Vladimir Rumyantsev, Nikolay N. Mikhailov, K. E. Spirin
Publikováno v:
Semiconductors. 52:1586-1589
The effects of the residual photoconductivity in HgTe/CdHgTe (013) double quantum-well heterostructures are studied at T = 4.2 K. It is shown that the residual photoconductivity in this system has a bipolar character, i.e., both positive and negative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e082c1b50e507aff13b1b8527016e33
https://doi.org/10.1134/s1063782618120230
https://doi.org/10.1134/s1063782618120230
Publikováno v:
Solid State Phenomena. 284:523-529
The urgency of the development of mathematical modeling tools that allow calculating the shape of free surface of the melt during the analysis of surfacing processes, introduced in additive production, is shown. A mathematical formulation of the prob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39e6011bc6648d0065d19ae183b4a7bd
https://doi.org/10.4028/www.scientific.net/ssp.284.523
https://doi.org/10.4028/www.scientific.net/ssp.284.523
Publikováno v:
Semiconductors. 50:1691-1695
The processes associated with the transfer of excitonic excitations between tunnel-uncoupled quantum wells (QW) and the influence of the local electric field were investigated in AlGaAs/GaAs heterostructures by the method of photoluminescence excitat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b1a383e91ef72d4b7763b2b153fad38
https://doi.org/10.1134/s1063782616120034
https://doi.org/10.1134/s1063782616120034
Publikováno v:
Lecture Notes in Mechanical Engineering ISBN: 9783030220624
The urgency of solving the problem of determining the deposited layer’s height for controlling the process of additive forming products from metallic materials in a vacuum is substantiated. A scheme of electron-beam additive manufacturing process w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87ee4c47210706f986634c383994456e
https://doi.org/10.1007/978-3-030-22063-1_120
https://doi.org/10.1007/978-3-030-22063-1_120
Publikováno v:
Lecture Notes in Mechanical Engineering ISBN: 9783030220624
The development of a mathematical model provides an analysis of heat transfer and metal flow during wire-based electron-beam additive manufacturing described. The procedure for solving the heat equation for the metal in the solid phase and the Navier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98674f906592636b269fb7ec62a2c535
https://doi.org/10.1007/978-3-030-22063-1_119
https://doi.org/10.1007/978-3-030-22063-1_119