Перегляд за автором "Byrka, O.V."

Сортувати за: Порядок: Результатів:

  • Alloying and modification of stainless steels by powerful plasma streams 
    Makhlaj, V.A.; Aksenov, N.N.; Byrka, O.V.; Chunadra, A.G.; Herashchenko, S.S.; Malykhin, S.V.; Mikhailov, I.F.; Sereda, K.N.; Surovitskiy, S.V. (Вопросы атомной науки и техники, 2016)
    The stainless steel surfaces coated of tungsten have been alloyed and modified with powerful QSPA Kh-50 plasma streams. The plasma streams exposures result in modification of steel-based materials and formation of ...
  • Application of pulsed plasma streams for materials alloying and coatings modification 
    Byrka, O.V.; Bandura, A.N.; Chebotarev, V.V.; Garkusha, I.E.; Langner, J.; Sadowski, M.J.; Tereshin, V.I. (Вопросы атомной науки и техники, 2002)
    Results of pulsed plasma streams processing of material surfaces with previously deposited FeB and TiAlN coatings are presented. Under the plasma treatment intensive mixing the materials of coating with the material of ...
  • Castellated structures behaviour under QSPA Kh-50 plasma exposures in ITER relevant conditions 
    Herashchenko, S.S.; Makhlaj, V.A.; Aksenov, N.N.; Bazylev, B.; Byrka, O.V.; Chebotarev, V.V.; Kulik, N.V.; Lebedev, S.I.; Shevchuk, P.B.; Staltsov, V.V. (Вопросы атомной науки и техники, 2014)
    The experimental study of castellated target erosion under relevant to ITER ELMs surface heat load (i.e., energy density and the pulse duration as well as particle loads) was performed in QSPA Kh-50 quasi-stationary plasma ...
  • Characteristics of plasma streams and optimization of operational regimes for magnetoplasma compressor 
    Bandura, A.N.; Byrka, O.V.; Garkusha, I.E.; Ladygina, M.S.; Marchenko, A.K.; Petrov, Yu.V.; Solyakov, D.G.; Chebotarev, V.V.; Chuvilo, A.A. (Вопросы атомной науки и техники, 2011)
    The main objective of these studies is characterization of dense xenon plasma streams generated by magnetoplasma compressor (MPC) in different operational regimes. Optimization of plasma compression in MPC allows increase ...
  • Characteristics of the plasma created by ECR plasma source for thin films deposition 
    Fedorchenko, V.D.; Byrka, O.V.; Chebotarev, V.V.; Garkusha, I.E.; Tereshin, V.I. (Вопросы атомной науки и техники, 2005)
    The construction of planar ECR plasma source with multipolar magnetic field is described and the distribution of plasma parameters is measured. Plasma density and electron temperature at the distance 2,5 cm from the magnet ...
  • Characterization of macroscopic erosion of castellated and flat tungsten surfaces under ITER-like transient plasma loads 
    Myroshnyk, M.O.; Herashchenko, S.S.; Makhlai, V.A.; Garkusha, I.E.; Aksenov, N.N.; Byrka, O.V.; Chebotarev, V.V.; Kulik, N.V.; Lebedev, S.I.; Shevchuk, P.B.; Staltsov, V.V. (Вопросы атомной науки и техники, 2019)
    The damages of tungsten targets with different geometries under repetitive transient hydrogen plasma loads have been studied with a quasi-stationary plasma accelerator QSPA Kh-50. The results of the experiments on target ...
  • Combined exposures of tungsten by stationary and transient hydrogen plasma heat loads: preliminary results 
    Makhlaj, V.A.; Aksenov, N.N.; Byrka, O.V.; Garkusha, I.E.; Bizyukov, A.A.; Bizyukov, I.A.; Girka, O.I.; Sereda, K.N.; Bazdyreva, S.V.; Malykhin, S.V.; Pugachov, A.T. (Вопросы атомной науки и техники, 2013)
    Influence of combined hydrogen plasma exposures on tungsten behavior was studied in QSPA Kh-50 facility and steady-state ion beam system FALCON. Pulsed plasma loads (0.45 MJ/m²) were below the tungsten melting threshold. ...
  • Damage of 3D tungsten targets in the course of ITER ELM-like heat loads 
    Herashchenko, S.S.; Makhlaj, V.A.; Aksenov, N.N.; Byrka, O.V.; Chebotarev, V.V.; Kulik, N.V.; Lebedev, S.I.; Shevchuk, P.B.; Staltsov, V.V. (Вопросы атомной науки и техники, 2017)
    The damage of tungsten target under repetitive plasma loads have been studied with a quasi-stationary plasma accelerator QSPA Kh-50. The target construction was close to the ITER divertor reference design. The plasma stream ...
  • Damaging of pure tungsten with different microstructure under sequential QSPA and LHD plasma loads 
    Herashchenko, S.S.; Byrka, O.V.; Makhlaj, V.A.; Wirtz, M.; Aksenov, N.N.; Garkusha, I.E.; Petrov, Yu.V.; Malykhin, S.V.; Surovitskiy, S.V.; Masuzaki, S.; Tokitani, M.; Lebedev, S.I.; Shevchuk, P.B. (Вопросы атомной науки и техники, 2020)
    The cracking thresholds were evaluated for tungsten samples with different microstructure in the course of QSPA Kh – 50 repetitive plasma loads. No damage has been observed on the exposed surfaces under 0.1 MJ/m². Nevertheless, ...
  • Diagnostics of plasma streams and plasma-surface interaction of essentially different duration of plasma pulses 
    Marchenko, A.K.; Ladygina, M.S.; Petrov, Yu.V.; Garkusha, I.E.; Solyakov, D.G.; Byrka, O.V.; Chebotarev, V.V.; Aksenov, N.N.; Herashchenko, S.S.; Lebedev, S.I.; Shevchuk, P.B.; Astashinski, V.M.; Makhlaj, V.A.; Kulik, N.V.; Yelisyeyev, D.V.; Staltsov, V.V.; Cherednychenko, T.N. (Вопросы атомной науки и техники, 2016)
    Studies of main characteristics of the plasma streams generated by magneto-plasma compressor (MPC) and quasi-stationary plasma accelerator QSPA Kh-50 have been performed. Main features of Plasma Surface Interaction (PSI) ...
  • Erosion properties of tungsten and WTa5 alloy exposed to repetitive QSPA plasma loads below melting threshold 
    Makhlai, V.A.; Herashchenko, S.S.; Aksenov, N.N.; Byrka, O.V.; Garkusha, I.E.; Malykhin, S.V.; Surovitskiy, S.V.; Kulik, N.V.; Staltsov, V.V.; Lebedev, S.I.; Shevchuk, P.B.; Wirtz, M.; Sadowski, M.J. (Вопросы атомной науки и техники, 2018)
    The damage of deformed double forged pure tungsten (W) and tungsten alloyed with 5 wt.% tantalum (WTa5) have been studied in experimental simulations of ITER-like transient events (surface heat load of 0.45 MJ/m² and ...
  • Experimental study of plasma-surface interaction and material damage relevant to ITER type i ELMs 
    Makhlaj, V. A.; Bandura, A.N.; Byrka, O.V.; Chebotarev, V.V.; Garkusha, I.E.; Garkusha, V.V.; Kulik, N.V.; Landman, I.; Lebedev, S.I.; Neklyudov, I.M.; Staltsov, V.V.; Tereshin, V.I. (Вопросы атомной науки и техники, 2006)
    The paper presents experimental investigations of main features of plasma-surface interaction and energy transfer to the material surface in dependence on plasma heat loads. The experiments were performed with QSPA ...
  • Influence of hydrogen and helium plasma streams exposures on modification of tungsten structure under powerful transient loads 
    Makhlaj, V.A.; Garkusha, I.E.; Byrka, O.V.; Chrebotarev, V.V.; Landman, I.S.; Lebedev, S.I.; Malykhin, S.V.; Pugachev, A.T.; Shevchuk, P.B.; Tereshin, V.I. (Вопросы атомной науки и техники, 2011)
    Influence of plasma exposures on tungsten behavior was studied in QSPA Kh-50 facility and pulsed plasma gun PPA. Plasma loads were chosen either below the melting threshold or resulting in pronounced melting. Evolution ...
  • Influence of longitudinal magnetic field in the MPC channel on the density of generated plasma stream 
    Marchenko, A.K.; Byrka, O.V.; Makhlai, V.A.; Herashenko, S.S.; Solyakov, D.G.; Volkova, Y.E.; Yeliseyev, D.V.; Novakowska-Langier, K. (Вопросы атомной науки и техники, 2021)
    The paper is devoted to experimental measurements and analysis of parameters of the plasma streams generated by magnetoplasma compressor (MPC) upgraded with an external axial magnetic field. Influence of the external axial ...
  • Influence of plasma stream parameters in pulsed plasma gun on modification processes in exposed structural materials 
    Byrka, O.V.; Bandura, A.N.; Chebotarev, V.V.; Garkusha, I.E.; Garkusha, V.V.; Makhlaj, V.A.; Tereshin, V.I. (Вопросы атомной науки и техники, 2011)
    This paper is focused on investigation of helium, nitrogen and krypton plasma streams generated by pulsed plasma gun (PPA). The main objection of this study is adjustment of plasma treatment regimes for different materials ...
  • Influence of plasma treatment on erosion haracteristics and structure of reversible hydrogen getters 
    Borisko, V.N.; Bobkov, V.V.; Chebotarev, V.V.; Garkusha, I.E.; Lototsky, M.V.; Poltavtsev, N.S.; Rudaya, I.A.; Shmal’ko, Yu.F.; Starovojtov, R.I.; Tereshin, V.I.; Byrka, O.V. (Вопросы атомной науки и техники, 2000)
  • Influence of pulsed plasma streams processing on wear behavior of steels in different friction conditions 
    Bandura, A.N.; Bovda, A.M.; Byrka, O.V.; Chebotarev, V.V.; Garkusha, I.E.; Tereshin, V.I.; Tortika, A.S. (Вопросы атомной науки и техники, 2000)
    Pulsed plasma streams processing was applied for surface modification of industrial steel samples. Different types of wear tests (pin-on-disk, flat-on-flat, abrasive, cavitation) were carried out for samples irradiated by ...
  • Investigation of helium plasma stream parameters in experiments on surface modification 
    Bandura, A.N.; Byrka, O.V.; Chebotarev, V.V.; Garkusha, I.E.; Ladygina, M.S.; Marchenko, A.K.; Tereshin, V.I.; Trubchaninov, S.A.; Tsarenko, A.V. (Вопросы атомной науки и техники, 2005)
    Processing of different constructional materials with pulsed plasma streams is one of prospective methods of surface modification. The main objection of this study is adjustment of plasma treatment regimes for different ...
  • Investigations of pulsed plasma streams generated by “Prosvet” device operated with different gases 
    Byrka, O.V.; Bandura, A.N.; Chebotarev, V.V.; Garkusha, I.E.; Ladygina, M.S.; Marchenko, A.K.; Trubchaninov, S.A.; Tsarenko, A.V.; Shevchuk, P.B.; Tereshin, V.I. (Вопросы атомной науки и техники, 2006)
    The paper presents the investigations of plasma streams generated by pulsed plasma gun “Prosvet” operated with different gases: krypton (m = 84), nitrogen (m = 14) and helium (m = 4). Contour parameters of working gas ...
  • Melt layer macroscopic erosion of tungsten and other metals under plasma heat loads simulating ITER off-normal events 
    Garkusha, I.E.; Bandura, A.N.; Byrka, O.V.; Chebotarev, V.V.; Garkusha, V.V.; Kulik, N.V.; Makhlaj, V.A.; Solyakov, D.G.; Stal’tsov, V.V.; Tereshin, V.I.; Landman, I.; Wuerz, H. (Вопросы атомной науки и техники, 2002)
    This paper is focused on experimental analysis of melt layer erosion and droplet splashing of tungsten and other metals under heat loads typical for ITER FEAT off-normal events, such as disruptions and VDE’s. Plasma pressure ...