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Article
INITIAL STAGE OF AN OBLIQUE IMPACT OF A LARGE SOLID SPHERE ON A WATER LAYER
An oblique impact of a spherical segment with a curvature radius of 106.5 mm onto a water layer 20 mm thick is studied up to the instant of the body–liquid contact. The range of the impact angle with respect t...
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Article
Ion-Assisted α-Al2O3 Coating Deposition by Anodic Arc Evaporation at 500–550°С
The paper studies the α-phase formation and structure of Al2O3 coatings deposited by the anodic arc evaporation in the low temperature range of 500–550°С. The current density of the ion assistance is varied up to...
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Article
Reactive Deposition of Al2O3 Coatings by Thermal Evaporation in a High-Current Discharge with a Hollow Anode
The conditions of Al2O3-coating deposition in a high-current discharge with an evaporating crucible anode and an additional hollow ionization-system anode are investigated. Using probe diagnostics and optical spe...
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Article
Modification of MgAl2O4 Electron-Optic Properties by Pulsed Ion Beam
The electron-optical characteristics of transparent aluminum-magnesium spinel ceramics doped with various copper fluences are studied. As a result of the ion-beam modification, the formation of new optically a...
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Article
Effect of Ion Flow Parameters on the Structure and Properties of Aluminum α-Oxide Coatings Obtained in an Arc Discharge via Ion-Assisted Reactive Anodic Evaporation
Aluminum oxide coatings are fabricated in an arc discharge through the reactive thermal anode evaporation of aluminum with intense ion assistance. The effect the bias voltage and ion current density have on th...
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Article
Electronic structure and structural defects in 3d-metal doped In2O3
Dilute magnetic semiconductors (DMSs) are a highly attractive field of research due to their potential to open new technological functionality. Here, we perform a systematic study of In2O3 thin films with dopant ...
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Article
Discharge System with a Self-Heated Hollow Cathode and an Evaporating Anode in a Cusp Magnetic Field for Oxide Coatings Deposition
The properties of a discharge with a self-heated hollow cathode and an evaporating anode placed in a cusp magnetic field created by two oppositely connected coils installed near the anode and cathode are studi...
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Article
Induced Quasi-Dynamic Disorder in a Structure of Rhenium Ion-Implanted Quartz Glass
The ultraviolet (UV) absorption spectra were studied in UV–Vis–IR quartz glasses exposed to the rhenium ion irradiation at the energy of 30 keV. An increase in ion fluence (5 × 1015–5 × 1017 cm2) is found to resu...
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Article
Magnetic State of Iron Impurity Ions in In2O3
X-ray photoelectron spectroscopy and electronic structure calculations in the framework of the coherent potential approach show that impurity Fe3+ ions substituting In in iron-doped In2O3 indium oxide(III) are in...
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Article
Structure of the Surface Layers of Metastable Austenitic Stainless Steel Nitrided in Electron Beam Plasma
The effect of the nitriding temperature in electron beam plasma on the structural and phase composition of the surface layers of metastable austenitic stainless steels is studied. Conversion electron Mössbauer...
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Article
Thermal regime of self-heated hollow cathode in a low-pressure high-current pulsed-periodic discharge
We have studied the thermal regime of a self-heated hollow cathode in combined low-current (1–5 A) dc discharge and high-current (up to 100 A) pulsed-periodic discharge and the influence of the pulsed paramete...
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Article
Nitriding of Stainless Steel in Electron-Beam Plasma in the Pulsed and DC Generation Modes
The influence of electron-beam parameters on the thickness and phase composition of a hardened layer formed upon the nitriding of austenitic stainless steel 12Cr18Ni10Ti in plasma produced by a beam in a low-p...
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Article
Nanocrystalline α-Al2O3 coatings obtained by reactive thermal anodic evaporation in arc discharge at low temperature
Al2O3 nanocrystalline coatings are obtained for the first time by anodic thermal evaporation of aluminum in an arc discharge in an oxygen–argon mixture at a temperature of 600°C on stainless-steel substrates with...
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Article
A self-heated hollow cathode made of compacted TiN powder: the preparation method and test results
A method for the formation of a tubular hollow self-heated cathode using magnetic-pulse pressing of a mixture of TiN (90%) and Ti (10%) powders with subsequent annealing and sintering during operation of the c...
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Article
Open AccessBulk vs. Surface Structure of 3d Metal Impurities in Topological Insulator Bi2Te3
Topological insulators have become one of the most prominent research topics in materials science in recent years. Specifically, Bi2Te3 is one of the most promising for technological applications due to its condu...
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Article
Analysis of TiAlSiN coatings deposited by reactive magnetron sputtering under high-current ion assistance
TiAlSiN nanocomposite coatings are obtained by the reactive magnetron sputtering of one-component targets with a widely varying (5–25) ratio of the ion current density j ...
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Article
Synthesis of new 3H-benzo[1,2,5]oxadiazine-4-oxides with heterocyclic moieties in the benzene ring
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Article
Generation of a pulsed high-current low-energy beam in a plasma electron source with a self-heated cathode
The transition of a low-current discharge with a self-heated hollow cathode to a high-current discharge is studied, and stability conditions for the latter in the pulsed–periodic mode with a current of 0.1–1.0...
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Article
Nitriding of stainless steel in plasma of a pulse electron beam
The formation of a hardened layer with low-temperature (400°C)nitriding of grade 12Kh18N10T stainless steel in plasma of a pulse electron beam which is generated under continuous and pulse conditions at equal ...
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Article
Novel hybrid compounds derived from benzofuroxans and sulfonamides
Novel hybrid compounds based on 4,6-dichloro-5-nitrobenzofuroxan or 7-chloro-4,6-dinitro-benzofuroxan and sulfonamides with a potential antimicrobial activity have been obtained.
