Search Results - "Ragulya, A.V."

Comparative toxicological-hygienic assessment, structural-morphological, physicochemical characteristics, and virucidal properties of new nanopowder materials TiO2 and TiO2@Ag by Yavorovsky, O.P., Riabovol, V.M., Zinchenko, T.O., Zahornyi, M.M., Ragulya, A.V., Tyschenko, N.I., Povnitsa, O.Yu, Artiukh, L.O., Zahorodnia, S.D., Ostapiv, D.D.

“… In order to address safety concerns related to the acquisition and utilization of TiO2 and TiO2@Ag nanomaterials, as well as to investigate their disinfectant…”
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Morphological, spectral and toxicological features of new composite material of titanium nanodioxide with nanosilver for use in medicine and biology by Zahornyi, M.M., Yavorovsky, O.P., Riabovol, V.M., Tyschenko, N.I., Lobunets, T.F., Tomila, T.V., Shirokov, O.V., Ragulya, A.V., Anisimov, Ye.M.

“…The results of this study indicate that titanium dioxide nanoparticles (nano-TiO2) possess adsorptive, photocatalytic, bactericidal, virucidal and fungicidal…”
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Microwave Sintering of Chessboard-Structured TiN-Si.sub.3N.sub.4 Composites Reinforced by Nanofibers by Zgalat-Lozynskyy, O.B, Ragulya, A.V

“…The microstructural design of composite nanomaterials for microwave sintering using chessboard structurization is proposed. As single-phase and composite…”
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Phase Transformations and Consolidation of Si.sub.3N.sub.4 Ceramics Activated with Yttrium and Silicon Oxides in Spark Plasma Sintering by Zamula, M.V, Kolesnichenko, V.G, Stepanenko, A.V, Tyschenko, N.I, Shyrokov, O.V, Borodianska, H.Yu, Ragulya, A.V

“…The effect of Y.sub.2O.sub.3 and Y.sub.2O.sub.3-SiO.sub.2 additions on the spark plasma sintering (SPS) of [alpha]-Si.sub.3N.sub.4 was studied. The interaction…”
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Template Syntheses of Porous Silica Adsorbents with Spherical Particle Morphologies by I.S. Berezovska, V.V. Yanishpolskii, V.A. Tertykh, T.F. Lobunets, A.V. Ragulya

“…The peculiarities of template syntheses of ordered porous silicas with spherical particle morphologies were investigated in alkaline and acidic media. The…”
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Microwave Sintering of Chessboard-Structured TiN–Si3N4 Composites Reinforced by Nanofibers by Zgalat-Lozynskyy, O.B., Ragulya, A.V.

“…The microstructural design of composite nanomaterials for microwave sintering using chessboard structurization is proposed. As single-phase and composite…”
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Fine defective structure of silicon carbide powders obtained from different starting materials by Tomila, T V, Vlasova, M V, Kakazey, M G, Vyshnyakova, K L, Ragulya, A V, Pereselentseva, L N

“…The fine defective structure of silicon carbide powders obtained from silicic acid-saccharose, aerosil-saccharose, aerosil-carbon black, and hydrated…”
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Crystal Structure and the Spectral Response of the Ba‐Doped SrTiO3 Incipient Ferroelectrics by Linnik, Ekaterina D., Lukyanchuk, Igor A., Mikheykin, Alexey S., Ragulya, Andrey V., Gorshunov, Boris P., Alyabyeva, Liudmila N., Zhukov, Sergey S., Mezzane, Daoud, Razumnaya, Anna G.

“…The crystal structure and lattice dynamics of quantum paraelectric BaxSr1−xTiO3 (x = 0, 0.01, 0.02) solid solutions are studied using X‐ray diffraction (XRD),…”
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Improved conductivity in tape casted Li-NASICON supported thick films: Effect of temperature treatments and lamination by Jiménez, R., del Campo, A., Calzada, M.L., Sanz, J., Kobylianska, S.D., Liniova, B.O., Belous, A.G., Ragulya, А.V.

“…In this work, the influence of different thermal sintering treatments on Li1.3Al0.3Ti1.7(PO4)3 NASICON thick films has been investigated. The isostatic…”
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Phase Transformations and Consolidation of Si3N4 Ceramics Activated with Yttrium and Silicon Oxides in Spark Plasma Sintering by Zamula, M.V., Kolesnichenko, V.G., Stepanenko, A.V., Tyschenko, N.I., Shyrokov, O.V., Borodianska, H.Yu, Ragulya, A.V.

“…The effect of Y 2 O 3 and Y 2 O 3 –SiO 2 additions on the spark plasma sintering (SPS) of α-Si 3 N 4 was studied. The interaction of oxides with silicon…”
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Tribological Properties of ZrN–Si3N4–TiN Composites Consolidated by Spark Plasma Sintering by Zgalat-Lozynskyy, O.B., Ieremenko, L.I., Tkachenko, I.V., Grinkevich, K.E., Ivanchenko, S.E., Zelinskiy, A.V., Shpakova, G.V., Ragulya, A.V.

“…The production of ZrN–Si 3 N 4 and ZrN–Si 3 N 4 –TiN composites by spark plasma sintering and the mechanical and tribological properties of the consolidated…”
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Spark Plasma Sintering of Magnesium Fluoride Nanopowders by Kolesnichenko, V. G., Zamula, M. V., Yurchenko, Yu. V., Chudinovych, O. V., Makogon, V. A., Tyschenko, N. I., Shyrokov, O. V., Sameliuk, A. V., Tomila, T. V., Kornienko, O. A., Ragulya, A.V.

“…The densification behavior of nanostructured MgF 2 ceramics in the spark plasma sintering process is studied. Nitrate synthesis is employed to produce fine…”
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Electrical aspects of the spark-plasma sintering of TiN-Ti[B.sub.2] composite. II. Effect of alternating current on the spark-plasma sintering of Ti[H.sub.2] + BN powder mixture by Petukhov, A.S, Khobta, I.V, Ragulya, A.V, Derevyanko, A.V, Starchenko, V.V

“…The effect of alternating current on the formation of phases and structure during the synthesis of TiN + [TiB.sub.2] composite by spark-plasma sintering of…”
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Rate-controlled synthesis and sintering of nanocrystalline barium titanate powder by Ragulya, A.V.

“…The densification and grain size during sintering as well as particle size, of the barium titanate powder during Pechini decomposition-synthesis depends on the…”
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Effect of the production temperature on the structure of [Si.sub.3][N.sub.4] nanofibers by Silenko, P.M, Shlapak, A.N, Tomila, T.V, Bykov, A.I, Ragulya, A.V

“…The effect of the production temperature on the morphology and structure of [Si.sub.3][N.sub.4] nanofibers was investigated. It was shown that nanofibers…”
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Electrical aspects of the spark-plasma sintering of TiN-Ti[B.sub.2] composite. I. Effect of electrical parameters of spark-plasma sintering on the structure and properties of TiN- Ti[B.sub.2] composite by Petukhov, A.S, Khobta, I.V, Ragulya, A.V, Derevyanko, A.V, Kovalchenko, A.M, Starchenko, V.V

“…The electrical aspects of spark-plasma sintering (SPS) of Ti[H.sub.2]-BN and Ti+BN powder mixtures for the production of a TiN-Ti[B.sub.2] ceramic composite…”
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Initial kinetics of microwave sintering of copper by Demirskii, D. N., Ragulya, A. V.

“…Model experiments for the initial stage of microwave sintering have revealed volume diffusion that can be accompanied by evaporation–condensation and surface…”
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Thermochemical microwave treatment of refractory nanopowders by Zgalat-Lozinskii, O. B., Kolesnichenko, V. G., Zamula, M. V., Solyanik, L. V., Garbuz, V. V., Klochkov, L. A., Dubovitskaya, N. V., Ragulya, A. V.

“…Titanium nitride and silicon nitride nanopowders are subjected to microwave treatment to stimulate reduction and nitration reactions. It is established that…”
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Formation and some properties of barium titanate embedded into porous matrices by Sidorchuk, V. V., Tertykh, V. A., Klimenko, V. P., Ragulya, A. V.

“…Embedding of barium titanate into porous oxide matrices via sol–gel synthesis and introduction in structured slurry based on fumed oxides has been carried out…”
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Synthesis and investigation of barium titanate nanoparticles covered with silica shell by Katok, K. V., Tertykh, V. A., Yanishpolskii, V. V., Ragulya, A. V., Klimenko, V. P., Klymchuk, D. O.

“…Matrix isolation of ferroelectric BaTiO 3 nanoparticles was executed by formation of protective silica shell (via hydrolysis and polycondensation of tetraethyl…”
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