Search Results - "Ragulya, A V"

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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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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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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Influence of Humidity on the Dielectric Properties of Two-Dimensional Microsized Molybdenum Disulfide Powders by Kulikov, L. M., Ragulya, A. V., Pozniy, A. P., Shevchuk, N. V., Akselrud, L. G.

“…Changes in the dielectric properties of two-dimensional (2D) microsized molybdenum disulfide powders in response to ambient air humidity at room temperature…”
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Temperature Dependent Rheology of Plasticized Polymer Suspensions Filled with Ceramic Nanoparticles by Umerova S. O., Ragulya A. V.

“…The temperature has a significant influence on the character of flow of polymer suspensions filled with BaTiO3 nanoparticles, changing its viscosity and…”
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Synthesis of the ZrN–ZrB2 Composite by Spark Plasma Sintering by Petukhov, O. S., Ragulya, A. V., Borodianska, H. Yu

“…Reactive spark plasma sintering of ZrH 2 , BN, and B powder mixtures in the temperature range 1500–1900°C was used to produce a ZrN–ZrB 2 ceramic composite…”
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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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Field assisted sintering of nanocrystalline titanium nitride powder by Kolesnichenko, V. G., Popov, V. P., Zgalat-Lozinskii, O. B., Klochkov, L. A., Lobunets, T. F., Raichenko, A. I., Ragulya, A. V.

“…The effect of field assisted sintering (FAS) on the compaction of TiN ceramics is examined using a nanosized TiN powder. Microstructural evolution at different…”
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Dielectric and Pyroelectric Response of BaTiO3-PVDF Nanocomposites by Hilczer, B., Kułek, J., Połomska, M., Glinchuk, M. D., Ragulya, A. V., Pietraszko, A.

“…Dielectric response of (0-3) type composites, made of BaTiO 3 particles with mean size of 20-30 nm and polyvinylidene fluoride was found to be determined by…”
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The XRD and IR Study of the Barium Titanate Nano-Powder Obtained Via Oxalate Route by Polotai, A. V., Ragulya, A. V., Tomila, T. V., Randall, C. A.

“…The complex investigation of barium titanyl-oxalate (BTO) thermal decomposition and further synthesis of nanocrystalline barium titanate powder under…”
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ESR Investigation of Yttria Stabilized Zirconia Powders with Nanosize Particles by Slipenyuk, A. M., Glinchuk, M. D., Bykov, I. P., Ragulya, A. V., Klimenko, V. P., Konstantinova, T. E., Danilenko, I. A.

“…Investigations of undoped zirconia oxide powders and stabilized by 3% or 8% of yttria with nanosize particles were carried out by electron spin resonance (ESR)…”
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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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Friction and Wear of the TiB2–30 vol.% B4C Composite Consolidated in Spark Plasma Sintering by Zamula, M. V., Varchenko, V. T., Umerova, S. A., Zgalat-Lozinskii, O. B., Ragulya, A. V.

“…The tribotechnical properties of the TiB 2 –30 wt.% B 4 C composite material in pair with VK6 hard metal are investigated. The material demonstrates high wear…”
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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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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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Liquidus surface in the HfO2-Y2O3-La2O3 system by ANDRIEVSKAYA, E. R, KOVYLYAEV, V. V, LOPATO, L. M, RAGULYA, A. V, SHEVCHENKO, A. V

“…The liquidus surface in the HfO2-Y2O3-La2O3 system was studied by differential thermal analysis in helium at temperatures of up to 2500°C, derivative thermal…”
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Selective laser sintering. I. Principles, continual model by Ragulya, A V

“…he main thermophysical and rheological processes accompanying selective laser sintering are considered. A mathematical model of laser sintering is proposed…”
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Non-isothermal sintering of barium titanate nano-powders of different origination by Ragulya, Andrey V., Polotay, Anton V.

“…Experimental investigation of non-isothermal sintering was carried out using the barium titanate of different dispersity: submicron powder (∼ 150 nm), and two…”
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Adsorption-chemical activity and interaction in the boron nitride-titanium hydride system by Zenkov, V S, Ragulya, A V

“…The paper examines the effect of physicochemical properties of starting boron nitride and titanium hydride on their reactive activity in the synthesis of the…”
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