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Перегляд Problems of Atomic Science and Technology, 2022, № 1 за назвою

Репозиторій DSpace/Manakin

Перегляд Problems of Atomic Science and Technology, 2022, № 1 за назвою

Сортувати за: Порядок: Результатів:

  • Mathematical relationships of models of two-phase flows in channels of reactors and steam generators of NPP's for the calculation of their hydrodynamic characteristics 
    Yefimov, О.V.; Pylypenko, M.M.; Kavertsev, V.L.; Harkusha, T.A.; Yesypenko, T.O. (Вопросы атомной науки и техники, 2022)
    Two-phase flows of the working substance in the steam-generating channels of reactors of single-circuit NPP’s and steam generators of two- and three-circuit NPP’s represent the joint movement of liquid (feed water) and ...
  • Mathematical relations of models of single-phase flows in the channels of reactors and steam generators of NPP's for calculation of heat transfer processes and hydrodynamic characteristics 
    Yefimov, O.V.; Pylypenko, M.M.; Kavertsev, V.L.; Harkusha, T.A.; Tiutiunyk, L.J.; Motovilnik, A.V. (Вопросы атомной науки и техники, 2022)
    The article presents the mathematical relationships of models of single-phase flows in channels of a other design for calculating the parameters of heat transfer processes and hydrodynamic (gas-dynamic) characteristics of ...
  • Microplasticity of 15Kh2NMFA vessel steel in a stress-strain state during magnetic treatment 
    Chernyak, N.A.; Sokolenko, V.I. (Вопросы атомной науки и техники, 2022)
    Earlier it was found that the treatment of pre-strained ferrite-pearlite vessel steel 15Kh2NMFA, welded joints of this steel by alternating magnetic field of industrial frequency leads to a decrease in the level and alignment ...
  • Modification of the structurally the phase state of aluminum alloy as a result of radiation thermal treatment 
    Prokhorenko, E.M.; Lytvynenko, V.V.; Bryukhovetskiy, V.V.; Shul’gin, N.A.; Kolodiy, I.V.; Tantsyura, I.G.; Prokhorenko, T.G. (Вопросы атомной науки и техники, 2022)
    The effect of relativistic electron beams on the change in the structure of the 2014 aluminum alloy was studied. The mechanical characteristics (hardness, ultimate strength, conditional yield stress) of the samples were ...
  • On multiple distillation or crystallization refining at given yield 
    Kravchenko, A.I.; Datsenko, O.A. (Вопросы атомной науки и техники, 2022)
    A comparison is made of the Cₙ concentration of the impurity with a separation coefficient β < 1 in the product of n-fold refining by simple distillation or normal directed crystallization with the concentration of C₁ ...
  • ᵃʳᶜʰPbWO₄ with improved optical parameters from archaeological lead 
    Yakubovskaya, A.G.; Tupitsyna, I.A.; Dubovik, A.M. (Вопросы атомной науки и техники, 2022)
    Technological principles of manufacturing a lead tungstate crystal from archaeological lead for use in low-background experiments to search for rare events are presented. The influence of the conditions for obtaining single ...
  • Peculiarities of the formation of a hardened layer during laser borinizing of piston rings 
    Hlushkova, D.B.; Ryzhkov, Y.V.; Kalinina, N.E.; Nosova, T.V. (Вопросы атомной науки и техники, 2022)
    Insufficient wear resistance of piston ring materials often limits the growth of machine productivity and service life. The use of traditional drilling methods associated with the diffusion of boron into the solid phase ...
  • Physical and chemical foundations of the extraction refining of natural uranium 
    Mukhachev, A.P.; Yelatontsev, D.O.; Kharitonova, O.A. (Вопросы атомной науки и техники, 2022)
    The paper presents the results of studies of the physicochemical processes of the extraction and nitric acid purification of uranium salts obtained by the method of precipitation of ammonium uranyl carbonate (AUC) from ore ...
  • Radiation hardness of polysiloxane-based scintillators 
    Zhmurin, P.М.; Yelisieiev, D.A.; Alekseev, V.D.; Yelisieieva, O.V.; Нurkalenko, Yu.О.; Popov, V.Ph. (Вопросы атомной науки и техники, 2022)
    Polysiloxane-based scintillators with different contant of aromatic chromophore groups have been obtained. 2,5-diphenyloxazole and its alkyl derivative were used as activators. The optical and scintillation properties of ...
  • Relative length as a classification parameter of the crystallization mode of amorphous films 
    Bagmut, A.G. (Вопросы атомной науки и техники, 2022)
    The possibility of using of the relative length δ₀ as a parameter, determining the polymorphous crystallization mode of amorphous films, was considered. Following polymorphous crystallization modes have been identified ...
  • Resistance of titanium alloys to cavitation wear 
    Klimenko, І.О.; Marinin, V.G.; Ovcharenko, V.D.; Kovalenko, V.I.; Kuprin, A.S.; Reshetnyak, O.M.; Belous, V.A.; Rostova, H.Yu. (Вопросы атомной науки и техники, 2022)
    The wear rate of titanium alloys VT1-0, TC5, VT6, VT14, OT4 under the action of microshocks due to cavitation, which is created in distilled water under the surface of the ultrasonic wave emitter, were determined. It was ...
  • SIMS study of the TiFe alloy interaction with oxygen 
    Litvinov, V.A.; Okseniuk, I.I.; Shevchenko, D.I.; Bobkov, V.V. (Вопросы атомной науки и техники, 2022)
    Secondary ion mass spectrometry (SIMS) analysis is used to investigate the composition of surface monolayers of the hydride forming intermetallic TiFe alloy during its interaction with oxygen. Oxygen, which is chemisorbed ...
  • Structural features of doped silicon single crystals 
    Azarenkov, N.A.; Semenenko, V.E.; Stervoyedov, N.G. (Вопросы атомной науки и техники, 2022)
    The nature of the change in the Fermi level of silicon under the influence of dopants, point defects, and dislocations has been determined. The parameters of the diffusion of impurities, the conditions for their appearance ...
  • Structural-phase transformations in magnetron deposited films of Ti-Zr-Ni systems during annealing in vacuum 
    Malykhin, S.V.; Kondratenko, V.V.; Kopylets, I.A.; Bogdanov, Yu.S.; Surovitsky, S.V.; Borisova, S.S.; Shipkova, I.G. (Вопросы атомной науки и техники, 2022)
    Structural and phase changes in thin films obtained by magnetron sputtering of a target with the composition Ti41Zr38.3Ni20.7 (at.%) were studied under isothermal vacuum annealing in the temperature range from 400 to 800 ...
  • Synthesis of the Ti-Zr-Ni alloys by the "hydride cycle" method 
    Dmytrenko, O.E.; Kolodiy, I.V.; Yanko, T.B.; Borysenko, V.M.; Irwin, K.; Vasilenko, R.L. (Вопросы атомной науки и техники, 2022)
    A comprehensive study of the technical parameters and conditions for the synthesis of ternary alloys in the Ti-Zr-Ni system by the “hydride cycle” method was carried out. The influence on the synthesis process of such ...
  • Temperature dependences of the Peclet number in sublimation processes of simple substances 
    Kravchenko, A.I.; Zhukov, A.I.; Datsenko, O.A. (Вопросы атомной науки и техники, 2022)
    The results of calculating the Peclet number Ре = wr/(ρD) (where D is the diffusion coefficient; w is the evaporation rate of the substance; ρ is the density of the substance; r is the size factor) in sublimation processes ...
  • The express registration of thermal conductivity anomalies of solids 
    Sokolenko, V.I.; Frolov, V.А.; Savchuk, E.S. (Вопросы атомной науки и техники, 2022)
    Investigation of the thermophysical characteristics of materials at low temperatures (T ≤ Θ, Θ is the Debye temperature) makes it possible to obtain information on the interaction of quasiparticles and is in demand in the ...
  • The Lifshitz-Rosenzweig method in calculations of the bias of basic dislocation loops in zirconium 
    Trotsenko, O.G.; Babich, A.V.; Ostapchuk, P.M. (Вопросы атомной науки и техники, 2022)
    Analytical expressions for the elastic interaction energy of radiation point defects of the dipole type with basic dislocation loops in zirconium are obtained for edge with Burgers vector bᴰ= 1/2 [0001] and mixed with bᴰˢ ...
  • The model of description of extraction of uranium-235 and uranium-238 isotopes complexes in a supercritical carbon dioxide layer heated from below 
    Borts, B.V.; Skoromnaya, S.F.; Tkachenko, V.I. (Вопросы атомной науки и техники, 2022)
    The models and analytical solutions for description of the extraction of ²³⁵U and ²³⁸U isotopes complexes in case of availability of water microdrops located both in a uniform temperature field and in a non-uniform temperature ...
  • The refining of titanium by the method of zone recrystallization in an electric field 
    Kozhevnikov, O.E.; Pylypenko, M.M.; Pelykh, V.M.; Virych, V.D.; Kozhevnikova, M.F. (Вопросы атомной науки и техники, 2022)
    The physical substantiation and an experimental study results of the application of zone recrystallization method in an electric field for the refining of titanium are presented. The elemental composition, microstructure ...

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