40 Result(s)

Article

Modification of Polyvinyltrimethylsilane Films by a 40 kHz Glow Discharge Plasma

The process of surface modification of polyvinyltrimethylsilane films by a low-temperature low-pressure 40 kHz discharge with filtered atmospheric air as the working gas was studied. It was found that plasma t...

A. V. Zinoviev, M. S. Piskarev, A. B. Gilman… in Inorganic Materials: Applied Research (2024)

Article

Effect of Low-Temperature Plasma on Polyketone Films: Changes in the Chemical Structure and Surface Morphology

X-ray photoelectron spectroscopy was used to study the change in the chemical composition of the surface of polyketone films as a result of exposure to a low-pressure direct-current (DC) discharge. The films w...

M. S. Piskarev, A. V. Zinoviev, A. B. Gilman… in Inorganic Materials: Applied Research (2023)

Article

Defect Formation in Gd₃Al_xGa_5–xO₁₂ (x = 1–3) and Gd₃Al₂Ga₃O₁₂:Ce Crystals

We present results of a detailed study of defect formation processes and their effect on the optical properties of gadolinium aluminum gallium garnet crystals with partial aluminum substitution for gallium in ...

V. M. Kasimova, N. S. Kozlova, E. V. Zabelina, O. A. Buzanov… in Inorganic Materials (2023)

Article

Effect of Low-Temperature Plasma on the Structure of Surface Layers and Gas-Separation Properties of Poly(Vinyltrimethylsilane) Membranes

New results of studying the one-sided surface modification of polymer films and flat-sheet composite membranes based on poly(vinyltrimethylsilane) using low-temperature plasma are presented. Treatment is carri...

D. A. Syrtsova, A. V. Zinoviev, M. S. Piskarev… in Membranes and Membrane Technologies (2023)

Article

Low-Temperature Plasma-Induced Changes in the Surface Chemical Composition of Polyethylene Naphthalate Films

The results of an experimental study by X-ray photoelectron spectroscopy of the chemical composition of the surface of polyethylene naphthalate films modified by low-pressure dc discharge at the anode and cath...

M. S. Piskarev, A. V. Zinoviev, E. A. Skryleva, B. R. Senatulin… in High Energy Chemistry (2022)

Article

On the production of dispersive single-crystal iron carbide (Fe₃C) nanoparticulate

In this study, the synthesis of uncontaminated, dispersible, single-crystal, stoichiometric iron carbide (Fe₃C) nanoparticulate is pioneered successfully by using the flow-levitation (FL) method. The technique fa...

A N Zhigach, I O Leipunsky, M L Kuskov, N G Berezkina… in Bulletin of Materials Science (2022)

Article

Modification of Polyvinyltrimethylsilane in Direct-Current Discharge

The modification of polyvinyltrimethylsilane under treatment by direct-current discharge at a reduced pressure has been investigated. Polymer films were placed at the anode and cathode, and filtered atmospheri...

A. V. Zinoviev, M. S. Piskarev, E. A. Skryleva, B. R. Senatulin… in High Energy Chemistry (2021)

Article

Contact Properties and Surface Structure of Polypyromellitimide Films Modified by Direct-Current Discharge

The contact properties, chemical structure, and surface morphology of polypyromellitimide films modified at the cathode and anode by dc discharge have been investigated. A significant improvement in wettabilit...

M. S. Piskarev, A. V. Zinovev, E. A. Skryleva, B. R. Senatulin… in High Energy Chemistry (2021)

Article

Thickness of the Modified Layer of Poly(ethylene terephthalate) Film Treated by Direct-Current Discharge

M. S. Piskarev, E. A. Skryleva, B. R. Senatulin, A. B. Gilman… in High Energy Chemistry (2020)

Article

Effect of High-Energy Ball Milling on the Structural Phase State and Magnetic Properties of Boron Nitride and Iron Powder Mixtures

An investigation is performed of the effect the high-energy ball milling (mechanical alloying, MA) of a mixture of iron and hexagonal boron nitride (h-BN) powders at a component weight ratio of Fe : BN = 1 has on...

V. P. Menushenkov, I. O. Minkova… in Bulletin of the Russian Academy of Science… (2020)

Article

Some Features of the Cathodic and Anodic Nickel Depassivation during DC Polarization in Sulfuric Acid Solutions

A comparative analysis of the formation and decomposition processes and the component composition of the phases of films that passivate a nickel electrode during its dc polarization in sulfuric acid solutions ...

V. A. Bryukvin, E. A. Skryleva, M. N. Naftal’, A. M. Levin… in Russian Metallurgy (Metally) (2019)

Article

Some Features of the Nickel Passivation Mechanism during Direct Current Polarization in Sulfuric Acid Solutions

The chemical compositions of the films on the nickel surface are examined by X-ray photoelectron spectroscopy during direct current polarization in aqueous and acidic electrolytes, which determine the mechanis...

V. A. Bryukvin, E. A. Skryleva, A. M. Levin… in Russian Metallurgy (Metally) (2019)

Article

Comparative Analysis of Boron Powders Obtained by Various Methods. I. Microstructure and Oxidation Parameters during Heating

This paper describes a study of boron powders and powder compounds, obtained by various methods, including metallothermal, electrolytic, and borane cracking methods. The crystal state, particle size and micros...

A. N. Pivkina, N. V. Muravyev, K. A. Monogarov… in Combustion, Explosion, and Shock Waves (2018)

Article

Determination of the Mode of Occurrence of V, Fe, and Mn in Slags and Charge of Vanadium Production by X-Ray Spectroscopy

Samples of technogenic raw materials are studied by spectroscopic methods. The chemical composition of a roast slag and a charge of vanadium production is analyzed by the X-ray fluorescence method (XRF). The p...

P. A. Zhdanov, I. F. Seregina, K. B. Osipov, M. A. Bol’shov… in Inorganic Materials (2017)

Article

Evaluation of Thermal Stability of Multilayered Nanostructured Coatings Based on Analysis of Diffusion Mobility of Components of the Layers

The thermal stability of multilayered nanostructured coatings is evaluated by analyzing the diffusion mobility of layer components. The possibility of increasing the thermal stability of multilayered coatings ...

A. O. Volkhonskii, I. V. Blinkov, Yu. V. Levinsky… in Russian Journal of Non-Ferrous Metals (2017)

Article

Optical properties, defects, and composition of La₃Ga_5.5Ta_0.5O₁₄ crystals

La₃Ga_5.5Ta_0.5O₁₄ crystals were grown in pure argon and in an argon + 2% oxygen atmosphere. The growth atmosphere significantly effects the elemental composition of the crystals, their color, and the genesis and i...

O. A. Buzanov, M. I. Voronova, E. V. Zabelina, A. P. Kozlova… in Inorganic Materials (2017)

Article

C₆₀ fullerene decoration of carbon nanotubes

A new fully carbon nanocomposite material is synthesized by the immersion of carbon nanotubes in a fullerene solution in carbon disulfide. The presence of a dense layer of fullerene molecules on the outer nano...

V. A. Demin, V. D. Blank, A. R. Karaeva… in Journal of Experimental and Theoretical Ph… (2016)

Article

Comparative analysis of the reactivity of nickel and a Ni–Re (10 wt %) alloy during direct current polarization in sulfuric acid solutions

A comparative analysis of the reactivity of nickel and its alloy with rhenium during their direct current polarization in sulfuric acid solutions (50–150 g/L, 25–60°C) is carried out. The regions of anodic pot...

V. A. Bryukvin, E. A. Skryleva, O. M. Levchuk, O. I. Tsybin… in Russian Metallurgy (Metally) (2016)

Article

Phase formation in the Ti–Al–Mo–N system during the growth of adaptive wear-resistant coatings by arc PVD

Ti–Al–Mo–N coatings have been grown by arc PVD at different bias voltages, V _b, applied to the substrate and partial pressures of nitrogen reaction gas, p(N₂), in the working chamb...

V. S. Sergevnin, I. V. Blinkov, D. S. Belov, A. O. Volkhonskii… in Inorganic Materials (2016)

Article

Displacement of a viscous fluid from a Hele-Shaw cell with a sink

It is found that the radial geometry does not stabilize the evolution of instability in the displacement of a more viscous fluid by a less viscous fluid from a circular Hele-Shaw cell with a sink. A linear ana...

O. A. Logvinov, E. A. Skryleva in Moscow University Mechanics Bulletin (2016)