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Перегляд Problems of Atomic Science and Technology, 2020 за датою випуску

Репозиторій DSpace/Manakin

Перегляд Problems of Atomic Science and Technology, 2020 за датою випуску

Сортувати за: Порядок: Результатів:

  • High-pure zinc for growing Zn⁸²Se scintillation crystals 
    Kovtun, G.P.; Shcherban, A.P.; Solopikhin, D.A.; Virych, V.D.; Gorbenko, Yu.V. (Вопросы атомной науки и техники, 2020)
    A process has been developed to produce high-purity granular zinc for growing Zn⁸²Se scintillation crystals designed to study the neutrinoless double beta decay (0ν2β) of the selenium isotope ⁸²Se in the CUPID-0 experiment. ...
  • High pure substances for astrophysical research 
    Kovtun, G.P. (Вопросы атомной науки и техники, 2020)
    The features of the application of high-purity substances for studying rare nuclear events in astrophysics, in particular double beta decay, are considered. It was noted that for such studies, the special underground ...
  • Production of high-purity zinc single crystals by vertical directed crystallization method 
    Shcherban, A.P.; Kovtun, G.P.; Solopikhin, D.A.; Gorbenko, Yu.V.; Rudycheva, T.Yu.; Malykhin, D.G.; Kolodiy, I.V.; Virych, V.D. (Вопросы атомной науки и техники, 2020)
    A seedless process has been developed to produce high-purity Zn single crystals by the method of vertical directed crystallization from a melt. The output of a single crystal structure is from 60 to 80%. Crystals with ...
  • Computation of thermodynamic parameters of binary metal systems with limited solubility of components in the solid α-phase 
    Shcherban, A.P.; Datsenko, O.A. (Вопросы атомной науки и техники, 2020)
    In the region of the primary solid α-phase for systems with limited solubility thermodynamic quantities such as the partial enthalpy of dissolution Δ HαB, the activity coefficients γαB and the activities ααB in binary metal ...
  • Zone refining of zirconium in an electric field 
    Kozhevnikov, O.E.; Pylypenko, M.M.; Stadnik, Yu.S.; Azhazha, R.V. (Вопросы атомной науки и техники, 2020)
    The physical grounds and an experimental study of the efficiency of applying the zone recrystallization method in an electric field for zirconium refining from metal and gas-forming impurities are presented. The changes ...
  • Separation factors at sublimation refining of some lanthanides 
    Кravchenko, А.I. (Вопросы атомной науки и техники, 2020)
    It is shown that the application of ideal separation factor in calculations of sublimation refining of Sm, Eu, Tm, and Yb has confined character: in considered base–impurity systems a difference between effective (β) and ...
  • Influence of purity on microstructure and strength characteristics of refrigable microcomposites 
    Azarenkov, N.A.; Semenenko, V.Е.; Lytovchenko, S.V.; Styervoyedov, N.G. (Вопросы атомной науки и техники, 2020)
    The influence of the purity of the source materials on the structural and dimensional stability of microcomposites obtained in the process of controlled invariant phase transformation is investigated. The influence of ...
  • Evolution of a dislocation structure during the growth silicon single crystals of n– and p–type 
    Azarenkov, N.A.; Semenenko, V.E.; Stervoyedov, N.G. (Вопросы атомной науки и техники, 2020)
    The kinetics of the formation of perfect n– and p–type silicon single crystals is considered. The peculiarity of the formation of point and linear defects in the process of a controlled phase transformation of a liquid–solid ...
  • Strain hardening of flat samples of two–dimensional high purity Al polycrystals 
    Badiyan, E.E.; Tonkopryad, A.G.; Ftomov, Ye.V.; Shekhovtsov, O.V. (Вопросы атомной науки и техники, 2020)
    Using the dislocation–kinetic approach based on equations describing the evolution of the average dislocation density in a material with an increase in shear strain, size effects have been theoretically studied that are ...
  • Crystal lattice rotations during plastic deformation of two–dimensional polycrystalline Al samples 
    Badiyan, E.E.; Ftomov, Ye.V.; Shekhovtsov, O.V.; Tonkopryad, A.G. (Вопросы атомной науки и техники, 2020)
    Theoretical studies of feasible rotations of the crystal lattice during the deformation of samples with an FCC structure under uniaxial tension are carried out. The results of the experimental determination of the magnitudes ...
  • Manufacture of super large tungsten single crystals in the form of rotation bodies 
    Shapovalov, V.O.; Nikitenko, Yu.O.; Yakusha, V.V.; Gnizdylo, O.M.; Sheiko, I.V. (Вопросы атомной науки и техники, 2020)
    The results of researches made at creation of technology of production of super-large single crystals of tungsten in the form of plates and bodies of rotation are presented in E.O. Paton Electric Welding Institute NAS of ...
  • Electron irradiation, temperature, and stress effect on corrosion of Zr-, Ni-Cr-, and Fe-Cr-based alloys in the vicinity of the water coolant supercritical transition 
    Bakai, O.S.; Boriskin, V.M.; Bratchenko, M.I.; Dyuldya, S.V. (Вопросы атомной науки и техники, 2020)
    Quantitative regularities of the Zr-1%Nb alloy, Ni-Cr alloy 690 and Fr-Cr stainless steel (SS) 12X18H10T corrosion in the near-critical domain (23.5 MPa, 360…380 °C) of a circulating water coolant are searched using ...
  • Peculiarities of kinetic and mechanical properties of high-entropy alloy Аl₀.₅CoCuCrNiFe in range ~ 300…77 К 
    Voyevodin, V.N.; Frolov, V.A.; Karaseva, E.V.; Savchuk, E.V.; Sokolenko, V.I.; Tikhonovskaya, Т.M.; Tortika, A.S. (Вопросы атомной науки и техники, 2020)
    The temperature dependences of the fundamental kinetic coefficients and the creep rate of steady-state plastic flow of the high-entropy alloy Аl₀.₅CoCuCrNiFe have been determined for interval ~ 300…77 К. The correlation ...
  • Elastic interaction energy of point defects with a basal dislocation loop in zirconium 
    Trotsenko, O.G.; Babich, A.V. (Вопросы атомной науки и техники, 2020)
    Based on the tensor Green's function for hexagonal crystals obtained by the Lifshitz-Rosenzweig method, the analytical expression of the elastic interaction energy of radiation point defects is calculated in the model of ...
  • Effect of electronic radiation on the evolution of nanostructure and creep of Zr at the temperature of 670 K 
    Karaseva, E.V.; Mats, A.V.; Mats, V.A.; Savchuk, E.S.; Sokolenko, V.I.; Тitоv, D.V. (Вопросы атомной науки и техники, 2020)
    The effect of electron irradiation on the creep and evolution of the zirconium nanostructure obtained by the SPD method and previously relaxed by ultrasound is studied. It has been shown that the electron irradiation (with ...
  • Investigation into hydride reorientation in dummy fuel rod cladding (Zr-1%Nb) under internal pressure during testing simulating SNF handling and accidents with limiting cladding heating up to 410 °С 
    Riedkina, G.P.; Chernyayeva, Т.P.; Grytsyna, V.M.; Krasnorutskyy, V.S.; Petelguzov, I.A.; Slabospytska, O.O. (Вопросы атомной науки и техники, 2020)
    This paper presents the results of experimental investigations into hydride reorientation that (HRT) can occur in fuel rod claddings under conditions simulating normal and some accident SNF handling modes with limiting ...
  • Potential ecological hazard of pure metals 
    Levenets, V.V.; Rolik, I.L. (Вопросы атомной науки и техники, 2020)
    The potential environmental hazard of a number of pure metals was assessed. A comparative analysis of hazard indicators established by various international organizations (WHO, ACGIH, etc.) and hazard factors regulated by ...
  • Suppression of segregation and control of the structure of ingots and casting 
    Shapovalov, V.O.; Grigorenko, G.M.; Nikitenko, Yu.O.; Yakusha, V.V.; Shapovalov, E.V. (Вопросы атомной науки и техники, 2020)
    The problem of segregation in large ingots, which are used in energy, heavy engineering, etc., is considered. A new approach to suppressing segregation processes is proposed. It consists in regulating the local crystallization ...
  • Behavior of the Ti-Zr-Ni thin film containing quasicrystalline and approximant phases under radiative-thermal action in transition modes 
    Malykhin, S.V.; Makhlai, V.A.; Surovitskiy, S.V.; Garkusha, I.E.; Herashchenko, S.S.; Kondratenko, V.V.; Kopylets, I.A.; Zubarev, E.N.; Borisova, S.S.; Fedchenko, A.V. (Вопросы атомной науки и техники, 2020)
    X-ray diffraction and SEM microscopy were used to study the structural and phase changes in a thin film obtained by magnetron sputtering of a Ti52Zr30Ni18 target (at.%) on a steel substrate under the radiation-thermal ...
  • Pure hafnium for nuclear power 
    Pylypenko, M.M.; Drobyshevska, A.О.; Stadnik, Yu.S.; Stupak, Yu.O. (Вопросы атомной науки и техники, 2020)
    The processes of producing reactor-grade hafnium are investigated. It is shown that the electron beam melting method is effective for purification of hafnium from metallic impurities. The use of deoxidizing additives makes ...

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