Перегляд за автором "Kuprin, A.S."

Сортувати за: Порядок: Результатів:

  • Blistering of W, Ta and W-Ta coatings under the influence of particles of low-energy hydrogen plazma 
    Tolstolutskaya, G.D.; Kuprin, A.S.; Voyevodin, V.N.; Nikitin, A.V.; Ovcharenko, V.D.; Belous, V.A.; Vasilenko, R.L.; Kopanets, I.E. (Вопросы атомной науки и техники, 2017)
    The surface topography and deuterium retention in W, Ta and W-Ta coatings under the influence of low-energy deuterium plasma was studied. It was observed formation of blisters as dome and burst or delaminated structures. ...
  • Cavitation and erosion resistance of vacuum arc Ti, Ti-Al, Ti-Zr, and Ti-Ni coatings 
    Klimenko, І.О.; Marinin, V.G.; Bortnitskaya, M.A.; Kuprin, A.S. (Вопросы атомной науки и техники, 2022)
    Studies on the influence of technological parameters (cathode-substrate distance, substrate temperature, bias voltage, arc current) of vacuum-arc titanium deposition coatings have shown that the deposition rate from one ...
  • Comparative characterization of ARC-PVD ZrN and PEO hydroxyapatite coatings on pure Ti-6Al-4V substrates for biomedical applications 
    Garkusha, I.E.; McCulloch, C.A.; Nowakowska-Langier, K.; Wilczopolska, M.; Taran, A.V.; Kuprin, A.S.; Romaniuk, S.P.; Kravchenko, Ya.O.; Podhurska, V.Ya.; Proskurnyak, R.V. (Problems of Atomic Science and Technology, 2023)
    The nanocrystalline films of zirconium nitride have been synthesized using ion-plasma vacuum-arc deposition technique on pure Ti-6Al-4V, whereas the hydroxyapatite coatings were deposited by the method of plasmaelectrolytic ...
  • Comparison of blistering of W bulk and coatings under H₂, D₂ and He plasma irradiation 
    Nikitin, A.V.; Kuprin, A.S.; Tolstolutskaya, G.D.; Vasilenko, R.L.; Ovcharenko, V.D.; Voyevodin, V.N. (Вопросы атомной науки и техники, 2018)
    The surface topography of W bulk prepared by powder sintering (20 μm thickness) and W coatings deposited by cathodic arc evaporation and by argon ion sputtering was studied under the influence of low-energy hydrogen (deuterium) ...
  • Deposition of chromium nitride coatings from vacuum arc plasma in increased nitrogen pressure 
    Ovcharenko, V.D.; Kuprin, A.S.; Tolmachova, G.N.; Gilewicz, A.; Lupicka, O.; Rochowicz, J.; Warcholinski, B. (Вопросы атомной науки и техники, 2014)
    The application of protective coatings on metal materials is the effective way to improve their durability. Chromium nitride coatings are applied mainly on tools due to good resistivity to oxidation compared to other metal ...
  • Deposition of TiN-based coatings using vacuum arc plasma in increased negative substrate bias voltage 
    Kuprin, A.S.; Leonov, S.A.; Ovcharenko, V.D.; Reshetnyak, E.N.; Belous, V.A.; Vasilenko, R.L.; Tolmachova, G.N.; Kovalenko, V.I.; Klimenko, I.O. (Вопросы атомной науки и техники, 2019)
    The paper presents the results of the study on the influence of a high substrate bias voltage from 300 up to 1300 V on the titanium nitride coating deposition under nitrogen pressure of 2 Pa. The deposition rate, phase and ...
  • Deuterium trapping and sputtering of tungsten coatings exposed to low-energy deuterium plasma 
    Tolstolutskaya, G.D.; Kuprin, A.S.; Nikitin, A.V.; Kopanets, I.E.; Voyevodin, V.N.; Kolodiy, I.V.; Vasilenko, R.L.; Ilchenko, A.V. (Вопросы атомной науки и техники, 2020)
    Processes of sputtering, surface modification and deuterium retention of tungsten coatings were studied under the influence of low-energy (500 eV) deuterium plasma with fluence (2·10²⁴D+/m²) at room temperature. The method ...
  • Effect of arc current on mechanical properties of AlCrN coatings deposited using cathodic arc evaporation 
    Warcholinski, B.; Gilewicz, A.; Kuprin, A.S. (Вопросы атомной науки и техники, 2022)
    The AlCrN coatings were formed using cathodic arc evaporation at constant nitrogen pressure and arc current ranged from 50 to 120 A. Scanning electron microscopy, energy dispersive analysis, X-ray diffractometry, ...
  • Effect of carbon on the properties of CrN coatings formed by cathodic arc evaporation in stationary system 
    Kuprin, A.S.; Kolodiy, I.V.; Ovcharenko, V.D.; Tolmachova, G.N.; Gilewicz, A.; Lupicka, O.; Warcholinski, B. (Вопросы атомной науки и техники, 2016)
    Due to good resistance to oxidation and wear chromium nitride coatings are widely used in industry. The works aimed at further improving, for example by carbon doping, the properties of the coatings. The goal of this study ...
  • Effect of deuterium implantation dose on properties of CrN coatings 
    Kuprin, A.S.; Belous, V.A.; Morozov, O.M.; Ovcharenko, V.D.; Dub, S.N.; Tolmachova, G.N.; Reshetnyak, E.N.; Zhurba, V.I.; Progolaieva, V.O. (Вопросы атомной науки и техники, 2017)
    The methods of X-ray diffraction analysis, atomic-force microscopy, nanoindentation and thermodesorption spectroscopy have been applied to investigate the effect of a dose (from 5∙10¹⁶ to 1.5∙10¹⁸ D/сm²) of implanted ...
  • Effect of nitrogen pressure on the structural and mechanical properties of V-Mo-N coatings deposited by cathodic arc evaporation 
    Kuprin, A.S.; Reshetnyak, E.N.; Gilewicz, A.; Warcholinski, B.; Vasilenko, R.L.; Rostova, H.Yu.; Klimenko, I.O.; Tolmachova, G.N.; Ilchenko, A.V. (Вопросы атомной науки и техники, 2022)
    The coatings of the V-Mo-N system were deposited by the cathodic arc evaporation method from the unfiltered plasma of two V and Mo cathodes. Electron microscopy, energy dispersive analysis, X-ray diffractometry, nanoindentation, ...
  • Erosion behavior of W-Ta coatings in plasmas of stationary mirror Penning discharges 
    Belous, V.A.; Bondarenko, M.N.; Glazunov, G.P.; Ilchenko, A.V.; Kuprin, A.S.; Konotopskiy, A.L.; Lunyov, V.M.; Ovcharenko, V.D. (Вопросы атомной науки и техники, 2017)
    Investigations had been carried out of the influence of Ta alloying (2…16 wt.%) in W-coatings on their erosion behavior in steady state plasmas of Penning discharges in different gases: argon, nitrogen, and hydrogen. The ...
  • Investigation of the influence of Ar pressure on vacuum-arc plasma with Cr-, Cu-, and Zr-cathodes 
    Kovtun, Yu.V.; Kuprin, A.S.; Lunev, V.M. (Вопросы атомной науки и техники, 2019)
    The work deals with the influence of argon pressure on the ion current of vacuum-arc discharge in the “Bulat-6” setup with Cr-Cu-Zr-cathodes, and also, on the rate of coating deposition on the surfaces being perpendicular ...
  • Laminated material for gamma radiation shielding 
    Aksenov, I.I.; Belous, V.A.; Goncharov, I.G.; Kuprin, A.S.; Lomino, N.S.; Mazilov, A.V.; Ovcharenko, V.D.; Pavlov, V.S.; Razsukovany, B.N. (Functional Materials, 2009)
    The efficiency of a radiation shielding structure consisting of a set of alternating layers of light and heavy metals is shown to be enhanced when the layered structure is turned to a radiation source by the light metal ...
  • Mass distribution of sputtered cathode material in the reflex discharge along the magnetic field mirror configuration 
    Kovtun, Yu.V; Skibenko, E.I.; Skibenko, A.I.; Kuprin, A.S.; Ozerov, A.N.; Syusko, E.V.; Yuferov, V.B. (Вопросы атомной науки и техники, 2016)
    The paper is concerned with the distribution of cathode material sputtered under the action of the pulsed reflex discharge plasma and deposited on the anode surface (vacuum chamber) by means of a set of discrete receiving ...
  • Mechanisms of radiation damage and development of structural materials for operating and advanced nuclear reactors 
    Voyevodin, V.N.; Tolstolutskaya, G.D.; Tikhonovsky, M.A.; Kuprin, A.S.; Kalchenko, A.S. (Вопросы атомной науки и техники, 2021)
    Safety of nuclear reactor (NR) and economic of nuclear power are determined to high degree by structural materials. Study of reasons of change of physical-mechanical properties of materials and of their dimensional stability ...
  • Morphology and sputtering of tungsten nitrides coatings exposed to deuterium plasma 
    Tolstolutskaya, G.D.; Kuprin, A.S.; Nikitin, A.V.; Vasilenko, R.L. (Problems of Atomic Science and Technology, 2023)
    Processes of sputtering, surface modification and change in the stoichiometric composition of W and WN coatings deposited on stainless steel by cathodic arc evaporation were studied under the influence of low-energy (500 ...
  • Optimization of use conditions for cathodic arc nickel coating doped with phosphorus 
    Lapitskaya, V.A.; Kuznetsova, T.A.; Trukhan, R.E.; Khabarava, A.V.; Chizhik, S.A.; Kuprin, A.S.; Komarov, A.I. (Вопросы атомной науки и техники, 2021)
    The results of tribological tests for a cathodic arc nickel coating doped with phosphorus are presented. The coating (thickness of 2 μm) is applied by a vacuum arc method from a nickel target with 6% phosphorus. The friction ...
  • Protective vacuum-arc coatings on zirconium alloy fuel cladding to prevent catastrophic accidents at nuclear reactors 
    Kuprin, A.S.; Zuyok, V.A.; Belous, V.A.; Ovcharenko, V.D.; Reshetnyak, E.N.; Vasilenko, R.L.; Tolmachova, G.N.; Kushtym, Ya.O. (Problems of Atomic Science and Technology, 2023)
    The processes of vacuum arc deposition of multicomponent coatings based on Cr, Ti, Al, Fe, Y, Si, and their nitrides with a thickness of 5…9 μm for the protection of zirconium alloy fuel rods were developed. The composition, ...
  • Radiation resistance of Ti—20Zr alloy in microcrystalline and nanocrystalline state 
    Belous, V.A.; Borodin, O.V.; Bryk, V.V.; Vasilenko, R.L.; Voyevodin, V.N.; Kuprin, A.S.; Ovcharenko, V.D.; Reshetnyak, E.N.; Tolmachova, G.N. (Functional Materials, 2013)
    In this work we studied structure of Ti—20Zr alloy in recrystallized and nanocrystalline conditions before and after irradiation by Zr³⁺ ions with energy 1.8 MeV to 80 dpa at 500° C. By transmission electron microscopy ...