A5101485711- Material Properties and Applications
- Catalytic Processes in Materials Science
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Pigment Synthesis and Properties
- Advanced ceramic materials synthesis
- Catalysis and Oxidation Reactions
- Thermodynamic and Structural Properties of Metals and Alloys
- Additive Manufacturing and 3D Printing Technologies
- Engineering Diagnostics and Reliability
- Material Properties and Failure Mechanisms
- Minerals Flotation and Separation Techniques
- Quasicrystal Structures and Properties
- Graphite, nuclear technology, radiation studies
- Aluminum Alloy Microstructure Properties
- Engineering Technology and Methodologies
- Additive Manufacturing Materials and Processes
- Chemical Thermodynamics and Molecular Structure
- Advanced Power Generation Technologies
- Bauxite Residue and Utilization
- Agricultural Engineering and Mechanization
- Epoxy Resin Curing Processes
- Thallium and Germanium Studies
- Thermal and Kinetic Analysis
- Iron and Steelmaking Processes
- Graph theory and applications
National University Zaporizhzhia Polytechnic
2001-2024
Institute of Solid State Chemistry
1996-2020
Kharkiv National Automobile and Highway University
2019
Ural Branch of the Russian Academy of Sciences
1988-2013
Russian Academy of Sciences
1999-2011
In this work a few nanopowders of magnetite (Fe3O4) produced by different methods were used as sorbents. Three techniques applied to make the nanopowders: (1) gas-phase synthesis, (2) chemical precipitation from water solution, and (3) laser atomization. Using these methods, particles with sizes crystal structure have been produced. The effects size on removal toxic Cr(VI) an aqueous solution imitating ground waters wastewaters pH = 7.4–7.8 studied at temperatures. It is shown that effective...
Purpose. It consists in evaluating the main technological possibilities of innovative direction obtaining titanium-containing materials from ilmenite concentrate by hydrofluorination.
 Research methods. Laboratory experiments on opening hydrofluorination an aqueous solution at different concentrations and temperature regimes, separation obtained products leaching filtration, evaluation composition chemical analysis methods.
 Obtained results. The research used a raw material...
Purpose. Development of a strength calculation methodology for the special technological containers chemical heat treatment workpieces, which considers consequences complex influence load and main factors. Creation possibility full-value mathematical modelling with three-dimensional geometric shape workpieces using finite element method. Research methods. Mathematical modeling taking into account hypothesis linear failure accumulation from low-cycle fatigue creep material. Results. A has...
Problem. The increase in the level of motorization and concentration vehicles major cities over past decade has led to an intensive traffic on main streets Ukrainian and, as a result, number involuntary stops increased, speed flows decreased, resulting cut significant pollution environment. Improving conditions road modern requires application whole complex architectural, planning technical measures. While implementation road, architectural measures both sufficiently long period time capital...
Purpose. Evaluation of the advantages innovative direction obtaining sought-after titanium and silicon oxides using technology hydrofluorination ilmenite concentrates Research methods. quality laboratory samples – products with regard to possibility integrating obtained materials into existing production schemes for current products, as well in providing raw promising technological processes. Chemical analysis was carried out by method atomic spectral analysis. In studies, material component...
Purpose. It is to create a method for determination of such shift coefficients the basic rack’s profile driving and driven wheels cylindrical spur gear pair, that during pair operation time wear rate surface layer on most wearing sections teeth’ involute surfaces will be minimal. Research methods are based integrated application theory tribological laws. The golden section used minimize function. Results. We have obtained dimensionless quantity, which function pair. Values this proportional...
The plastic properties of specimens Al — 2.3% V alloy and A85 aluminum, obtained by the method selective laser melting, have been studied. Ultimate plasticity diagrams these materials were plotted. It was found that ultimate studied significantly depended on deformation conditions (the type stress state, which is characterized Lode—Nadai coefficient μσ). Thus, under tensile shear test (–1 ≤ μσ 0), practically same. In case tests extrusion bottom a thick-walled cup (μσ = +1), approximately...
Purpose. It is to create a method for determination of profile shift coefficients, such that during the operation cylindrical helical-gear pair sum wear rates involute surfaces on contacting sections at highest and lowest active points teeth’ profiles driving driven wheels will be minimum. Research methods are based integrated application gear theory tribological laws. The secant known in computational mathematics used find root nonlinear equation. Results. created rational values correction...
The first part of this paper considers the physical methods research polymers and copolymers, impact electric, magnetic electromagnetic fields on their properties characteristics, new effects in dynamics chemical reactions. At present time, these areas are developing successfully, including through additive technologies.
The paper studies of kinetics epoxy resin curing by dielectric analysis method. Kinetic parameters largely depend on the measurement mode. During curing, time dependence tgδ passes two maximum loss, first which occurs only in case at low frequencies. position both maxima is determined frequency measurements are performed. latter circumstance very important, due to fact that occurrence usually associated with gelation system, determines transition from viscous state viscoelastic one, and...
In the process of field operation earth-moving machines experience combined stresses caused by work environment. Such impact parameters depend on excavated soil conditions, kind operations performed, type implement mounted machine. During machine life-cycle its loading conditions can change many times. The research revealed that changes in form and external loadings do not allow ensuring a high reliability capacity an any operation. To achieve level mentioned should be equipped with systems...