Перегляд за автором "Sayenko, S.Yu."

Сортувати за: Порядок: Результатів:

  • Analyses of fluorapatite prepared by both chemical precipitation and solid phase reaction methods 
    Sayenko, S.Yu.; Shkuropatenko, V.А.; Tarasov, R.V.; Prudyvus, K.А.; Savina, S.А.; Zykova, A.V. (Физическая инженерия поверхности, 2013)
    At the present study the possibility of obtaining two compositions of Ca₁₀(PO₄)₆F₂ and Ca₉Sr(PO₄)₆F₂ fluoroapatites by both chemical deposition from solutions of the initial components and reaction in the solid phase ...
  • Application of electroconsolidation of powder components for production of ultradenced ceramics Al₂O₃ and ZrO₂ (3% Y₂O₃) 
    Sayenko, S.Yu.; Svitlychniy, Eu.O.; Lobach, K.V. (Физическая инженерия поверхности, 2013)
    The possibility of application of electroconsolidation for production of ultradenced ceramics based on Al₂O₃ and ZrO₂ (3% Y₂O₃ ) compounds is studied. As a result of the conducted researches optimum values of process ...
  • Application of nuclear-physics methods for studying the radionuclide transport in granite rocks 
    Dikiy, N.P.; Sayenko, S.Yu.; Uvarov, V.L.; Shevyakova, E.P. (Вопросы атомной науки и техники, 2000)
    The results of studying the migration of 169Yb as actinide-simulator in granite specimens in pristine state and preliminary irradiated with various γ-irradiation dose up to 3,0*109 rad are represented and briefly discussed. ...
  • Electron linac application for characterization and disposal of radioactive waste 
    Dikiy, N.P.; Dovbnya, N.A.; Sayenko, S.Yu.; Uvarov, V.L. (Вопросы атомной науки и техники, 2001)
    Rapid development of nuclear engineering, medicine and radiation technologies is accompanied by increase of the radioactive waste (RAW) including long-lived ones. A RAW handling assumes their element content and activity ...
  • Erosion behavior of materials on basis of tungsten hot pressed in vacuum under mirror Penning discharge plasma impact 
    Glazunov, G.P.; Baron, D.I.; Bondarenko, M.N.; Konotopskiy, A.L.; Neklyudov, I.M.; Odeychuk, N.P.; Sayenko, S.Yu.; Surkov, A.E.; Tarasov, I.K.; Volkov, E.D. (Вопросы атомной науки и техники, 2007)
    The erosion behavior of porous W, W-Ni and W-Cu systems produced by hot pressing in vacuum was examined under exposure to plasmas of mirror Penning discharges in argon, nitrogen, helium and hydrogen. The erosion characteristic ...
  • Experimental study on radioactive waste immobilization in low-temperature magnesium-potassium phosphate ceramic matrix 
    Sayenko, S.Yu.; Shkuropatenko, V.A.; Pylypenko, A.V.; Zykova, A.V.; Karsim, S.A.; Andrieieva, V.V.; Moshta, S.V. (Вопросы атомной науки и техники, 2020)
    Results of the studies carried out in NSC KIPT on application of magnesium-potassium phosphate ceramic matrices for immobilization of cesium, clinoptilolite with a cesium and solidified simulators of highly-active waste ...
  • Investigation of actinide simulators migration in granite and tuff irradiated by gamma-quanta 
    Dubinko, V.I.; Dovbnya, A.N.; Sayenko, S.Yu.; Dikiy, N.P.; Shevyakova, E.P.; Grytsyna, V.M.; Surkov, A.E.; Bereznyak, E.P.; Lyashko, Yu.V.; Medvedeva, E.P. (Вопросы атомной науки и техники, 2006)
    Granite and tuff specimens have been γ- irradiated to the absorbed doses ranging from 10⁷ to 3.0·10⁸ Gy. Penetration profiles of cerium ¹³⁹Ce (actinide simulator) in granite and tuff specimens (before and after ...
  • Investigation of granite rocks radiation-chemical durability 
    Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Yu.V.; Medvedeva, E.P.; Sayenko, S.Yu.; Tarasov, R.V.; Uvarov, V.L.; Kholomeyev, G.A.; Shevyakova, E.P.; Fedorets, I.D. (Вопросы атомной науки и техники, 2002)
    Gamma-activation analysis is used to study dynamics of leaching of various elements from granite samples. The sample preliminary irradiation and activation was carried out in the field of bremsstrahlung of electron ...
  • Obtaining of strontium doped fluorapatite powders 
    Sayenko, S.Yu. (Functional Materials, 2015)
    Possibility of obtaining powders of calcium Ca₁₀(PO₄)₆F₂ and strontium-containing Ca₉Sr(PO₄)₆F₂ fluorapatites by both solid phase reaction method with subsequent heat treatment and chemical co-precipitation method from ...
  • Target unit for radiation test of materials under bremsstrahlung of electron accelerator 
    Yeran, L.V.; Karasyov, S.P.; Pomatsalyuk, R.I.; Sayenko, S.Yu.; Shevchenko, V.A.; Shlyakhov, I.N.; Tenishev, A.Eh.; Uvarov, V.L. (Вопросы атомной науки и техники, 2001)
    There is a necessity to provide an immobilization of the long-lived radioactive waste into radiation-resistant structure (a cement matrix, container capsule, geological disposal environment and so on) for it safely disposal. ...
  • Use of electron linac for study of fission product and actynide diffusion through glass ceramic matrices 
    Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Yu.V.; Меdvedeva, Е.P.; Sayenko, S.Yu.; Uvarov, V.L.; Fedorets, I.D.; Меdvedev, D.V.; Borovlev, V.I.; Zabolotny, V.D. (Вопросы атомной науки и техники, 2004)
    The diffusion of cerium and uranium was investigated in glass ceramic matrices obtained in the gasostat. For activation of isotopes ¹⁴⁰´¹⁴²Се and ²³⁸U the brake radiation from electrons of the linear accelerator was used. ...