Перегляд за автором "Kovtun, K.V."

Сортувати за: Порядок: Результатів:

  • Alloys for molten-salt reactors 
    Azhazha, V.M.; Bakai, A.S.; Lavrinenko, S.D.; Bobrov, Yu.P.; V’yugov, P.N.; Kovtun, K.V.; Pylypenko, M.M.; Savchenko, V.I.; Solopikhin, A.D.; Stetsenko, S.P.; Malykhin, D.G. (Вопросы атомной науки и техники, 2005)
    Results are reported from studies on the selection, development and manufacture of structural materials for a fuel-salt circulation loop of molten-salt reactors. Studies into the properties of materials obtained were ...
  • Compton detector of neutrons for the energy yieldcontrol in the active zone of WWER 
    Shilyaev, B.A.; Ulybkin, A.L.; Rybka, A.V.; Kovtun, K.V.; Kutny, V.E.; Pudov, A.O.; Kutny, K.V. (Вопросы атомной науки и техники, 2017)
    The article examines the processes of radiative neutron capture by nuclei of atoms of metallic rhodium and hafnium. Rhodium is used as the emitter in the direct charge detectors of neutrons, which are used to control the ...
  • Corrosion stability of molybdenum and tungsten coatings in lead-bismuth eutectic 
    Azhazha, V.M.; Bakai, A.S.; Glushko, P.I.; Kovtun, K.V.; Omelchuk, A.A.; Semenov, N.A.; Skryptun, I.N.; Sheremet, V.I.; Shirokov, B.M.; Shmegera, R.S. (Вопросы атомной науки и техники, 2005)
    The paper presents results of corrosion tests of tungsten- and molybdenum-based protective coatings, deposited on nickel-molybdenum alloys (hastelloy) in heavy metal melts (Pb, Bi, Pb–Bi eutectic). Results of an investigation ...
  • Hafnium in nuclear power industry: the evolution of increasing of the economic indicators and the operation safety of pressurized water nuclear reactors 
    Shilyaev, B.A.; Ulybkin, A.L.; Kovtun, K.V.; Rybka, A.V.; Kutny, V.E.; Pudov, A.O. (Вопросы атомной науки и техники, 2018)
    А further increase of the reliability, safety and efficiency of nuclear reactors, the extension of the nuclear fuel campaign and a better control of the fuel burning-out level demand to search for and use new materials. ...
  • Hafnium in nuclear power industry: the evolution of increasing of the economic indicators and the operation safety of pressurized water nuclear reactors 
    Shilyaev, B.A.; Ulybkin, A.L.; Kovtun, K.V.; Rybka, A.V.; Kutny, V.E.; Pudov, A.O. (Вопросы атомной науки и техники, 2017)
    А further increase of the reliability, safety and efficiency of nuclear reactors, the extension of the nuclear fuel campaign and a better control of the fuel burning-out level demand to search for and use new materials. ...
  • High Frequency Vibrations Impact on Mechanical Properties of Nanocrystalline Titanium 
    Bakai, S.А.; Smolianets, R.V.; Kovtun, K.V.; Moskalenko, V.А.; Bakai, A.S. (Металлофизика и новейшие технологии, 2016)
    Mechanical properties of nanocrystalline titanium are studied under uniform confined compression with ultrasound oscillations of 20 kHz to clarify the way of high-frequency vibrations’ effect on mechanical properties of ...
  • Intense plastic deformation of high-purity cast beryllium 
    Vasilev, A.A.; Stetsenko, S.P.; Vasilenko, R.L.; Malykhin, D.G.; Stoyev, P.I.; Khovrich, S.V.; Trembach, O.V.; Kovtun, K.V. (Вопросы атомной науки и техники, 2020)
    The effect of intense plastic deformation on the mechanical properties, structure, and texture of high-purity cast beryllium was studied. For the first time, angular pressing of high-purity cast beryllium was carried out ...
  • Investigation of surface resistance OF Al, Be AND Al-Be alloy at low temperatures 
    Azhazha, V.M.; Kovtun, K.V.; Kutovoj, V.A.; Khizhnyak, N.A. (Вопросы атомной науки и техники, 2000)
    Our work contains experimental and theoretical studies on the surface resistance of aluminium A999, A99 as a function of annealing temperature, frequency of electromagnetic oscillations, cooling temperature and processing ...
  • Mineral insulators for kompton detectors of neutrons with a metal hafnium emitter 
    Bohdan, E.A.; Pirozhenko, L.A.; Azhazha, R.V.; Khudyakov, S.V.; Vierovkin, A.A.; Rybka, A.V.; Kutny, V.E.; Kovtun, K.V.; Sokolov, S.A.; Ulybkin, A.L.; Pudov, A.O. (Вопросы атомной науки и техники, 2020)
    One of the priority tasks of nuclear power industry is to increase the reliability and safety of nuclear power plants. In this regard, traditional detectors for measuring the neutron flux in the reactor core are being ...
  • Structure and stress state of ion-plasma hafnium condensates 
    Vus, A.S.; Malykhin, S.V.; Pugachev, A.T.; Reshetnyak, E.N.; Azhazha, R.V.; Kovtun, K.V. (Functional Materials, 2007)
    The 0.05-0.5 μm trick films have been obtained from GFE-1 grade hafnium target by magnetron sputtering using argon ions. Purity of the obtained films was controlled by X-ray fluorescence spectroscopy. The structure of films ...
  • The corrosion resistance of heatproof nickel alloy in molten fluoride salts 
    Azhazha, V.M.; Bakai, A.S.; Bobrov, Yu.P.; Virich, V.D.; Yemlyaninova, T.G.; Kapustin, V.L.; Kovtun, K.V.; Lavrinenko, S.D.; Malykhin, D.G.; Petel’guzov, I.A.; Pylypenko, M.M.; Savchenko, V.I.; Semyonov, N.A.; Solopikhin, A.D.; Shirokov, B.M. (Вопросы атомной науки и техники, 2005)
    Studies have been made into corrosion and mechanical properties of high-nickel alloys prepared at NSC KIPT on the basis of high-purity metal components. Corrosion tests of the Hastelloy-type alloy in fluoride melts at 650°C ...
  • Еffects of cross rolling and stress relaxation on texture of Zr-2.5%Nb plates 
    Grytsyna, V.M.; Malykhin, D.G.; Yurkova, T.S.; Kovtun, K.V.; Chernyayeva, T.P.; Kovtun, G.P.; Voyevodin, V.N. (Вопросы атомной науки и техники, 2018)
    An effect of cold rolling on texture and the Kearns’ texture parameter (TP) of Zr-2.5%Nb alloy plates, made by straightening the rings of the Ø15.0×1.5 mm tube, has been investigated by the X-ray method of inverse pole ...
  • Тhе effect of ulrtasonic vibrations on the mechanical properties of nanocrystalline titanium 
    Bakai, К.S.; Bakai, S.А.; Kovtun, K.V.; Gorbatenko, V.M.; Shirokov, B.M. (Вопросы атомной науки и техники, 2018)
    Mechanical properties of nanocrystalline titanium were studied under uniform confined compression with ultrasound oscillations of 20 kHz to clarify the way high frequency vibrations affect mechanical properties of nanocrystals. ...