A5051589926- Advanced materials and composites
- Nuclear Materials and Properties
- Metal and Thin Film Mechanics
- Titanium Alloys Microstructure and Properties
- Advanced ceramic materials synthesis
- Microstructure and Mechanical Properties of Steels
- Nuclear materials and radiation effects
- Radiation Shielding Materials Analysis
- Magnetic Properties and Applications
- Intermetallics and Advanced Alloy Properties
- Chemical Synthesis and Characterization
- Extraction and Separation Processes
- Microstructure and mechanical properties
- Powder Metallurgy Techniques and Materials
- Laser Material Processing Techniques
- Graphite, nuclear technology, radiation studies
- Magnetic Properties of Alloys
- Material Properties and Applications
- Diamond and Carbon-based Materials Research
- Advanced Materials Characterization Techniques
- Metal-Organic Frameworks: Synthesis and Applications
- Metallurgical and Alloy Processes
- Metal Alloys Wear and Properties
- Material Properties and Failure Mechanisms
- Metallic Glasses and Amorphous Alloys
Joint Institute for Nuclear Research
2020-2025
Dubna State University
2021-2025
National University of Science and Technology
2024
Belgorod National Research University
2011-2020
Ton Duc Thang University
2020
The W-Cu composites with nanosized grain boundaries and high effective density were fabricated using a new fast isostatic hot pressing method. A significantly faster method was proposed for the formation of in comparison to traditional ones. influence both temperature pressure conditions on microstructure, structure, chemical composition, values observed. It has been shown that samples have polycrystalline well-packed microstructure. copper performs function matrix surrounds tungsten grains....
W-Bi2O3 composites were fabricated using the hot isostatic pressing technique for first time. The duration of samples sintering was 3 minutes under conditions high pressure and temperature. study microstructural features chemical composition sintered carried out scanning electron microscopy energy-dispersive X-ray spectroscopy, respectively. effect temperature on quality obtained is determined. densest at a 5 GPa temperatures 25 °C 500 °C, densities which 18.10 17.85 g cm-3, It presented...
Composite materials based on a polymer matrix of linear low-density polyethylene (LLDPE) and W were produced by thermal pressing. The content in the samples varied from 0 to 70 %. recycling properties LLDPE are demonstrated this study, which significantly helped reduce defects. microstructure composites consists well-defined grains covered elastic fibers. A homogeneous distribution tungsten was observed for sample W70. EDX analysis showed presence carbon (from component). XRD confirms...
An isostatic hot-pressing technique for the fabrication of dense W samples' is presented. The microstructure and chemical content were analyzed. most compact samples received at 5 GPa pressure 1500 2000 °C temperatures, with densities 18.50 19.07 g/cm3, respectively. It has been established that high temperature exposure a positive effect on both density. shown as sintering increases, porosity decreases from 32.31% to 0.94%, their relative density increases 67.69% 99.06%. crystal structure...
This article deals with the effects of current modes on saccharin adsorption during NiFe electrodeposition, and, as a consequence, its effect chemical composition, crystal structure, and microstructure deposited films. For this purpose, we obtained films using direct, pulse, pulse-reverse electrodeposition modes. The deposit surface are studied. Direct (DC) pulse (PC) have smooth surface, while (PRC) film is covered by volumetric cauliflower-like microstructure. mechanism development was...
This study announces the anomalous phase separation in CoNiP alloy electroplating. The observed phenomenon of formation magnetic bubbles was described for first time this triple system. briefly covers all stages bubble formation, starting from an amorphous phosphor-rich sublayer, followed by nucleation centers, and finally cobalt-rich bubbles. An explanation mechanism found effects additives phenomena depolarization superpolarization.
The microstructure and microhardness evolution of a Ti-15(wt.%)Mo/TiB metal-matrix composite (MMC) during high-pressure torsion (HPT) at 400 °C was studied. fabricated by spark plasma sintering Ti, Mo TiB2 powders mixture 1200 °C. In the initial condition, structure consisted mainly body-centered cubic (bcc) Ti solid solution TiB whiskers. An increase in dislocation density, considerable decrease grain size bcc matrix, breaking/rearrangement whiskers were observed HPT. (sub)grain matrix...
The effect of microstructure on the efficiency shielding or shunting magnetic flux by permalloy shields was investigated in present work. For this purpose, FeNi coatings with different grain structures were obtained using stationary and pulsed electrodeposition. coatings’ composition, crystal structure, surface microstructure, domain studied. It has been shown that 0.2–0.6 µm grains have a disordered structure. Consequently, higher value achieved, but working range too limited. reason for is...
The composite phosphors SrAl2O4/Sr3Al2O6:Bi2O3/Bi2O4 synthesized by a solid-phase approach have been studied means of X-ray diffraction, Raman spectroscopy, and optical spectroscopy methods. A redistribution Bi3+ ions between two phases was observed changes in crystal parameters, bond length, vibrational frequencies on spectra. relationship the structure host matrix characteristics has established.
The zirconium metal - organic framework MIP-202(Zr), based on L-aspartic acid, was prepared by hydrothermal method and used for study of ruthenium adsorption from aqueous solutions. obtained material characterized X-ray diffraction (XRD), infra red spectroscopy (IR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), electron microscopy (SEM) photoelectron (XPS). batch experiment performed determination equilibrium, kinetics thermodynamics parameters to Ru(III)...
The influence of femtosecond laser irradiation on the formation an oxide layer surface VT6 titanium alloy (Ti–6Al–4V) is studied. structure, chemical and phase composition have been studied by x-ray diffraction, scanning transmission electron microscopy. features layer, which contains TiO2-rutile, TiO2-anatase Al2TiO5-aluminum titanate, Ti3O5-titanium TiO-titanium monoxide laser-irradiation modified analyzed.
Hydroxyapatite (HAP) coupled with its two modifications HAP P123 and F127 were applied for indium removal from aqueous solutions. Adsorbents’ abilities to remove ions assessed in relation pH, time of contact, concentration, temperature, presence co-existing ions. Adsorption was discovered be pH-dependent all sorbents, maximum ion at pH 4.0. Both the Langmuir Freundlich isotherm models used explain experimental results. For adsorbents, provided a better description equilibrium sorption. The...