A5033111976- Additive Manufacturing and 3D Printing Technologies
- Cellular and Composite Structures
- Electromagnetic wave absorption materials
- Bone Tissue Engineering Materials
- Dielectric materials and actuators
- Multiferroics and related materials
- Ferroelectric and Piezoelectric Materials
- Automotive and Human Injury Biomechanics
- Innovations in Concrete and Construction Materials
- Modular Robots and Swarm Intelligence
- Fire effects on concrete materials
- Fire dynamics and safety research
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Combustion and Detonation Processes
- Engineering Technology and Methodologies
- Advanced Sensor and Energy Harvesting Materials
- Structural Analysis of Composite Materials
- Additive Manufacturing Materials and Processes
- Architecture and Computational Design
St. Petersburg State Technological Institute
2016-2024
Almaz-Antey (Russia)
2020
Jet fires are the second most common fire scenario after spill fires. This type of is characteristic gas and gas–oil occurring on oil platforms production processing plants. The consequences such characterized by high material damage; this associated with extensive networks technological communications, since there a density facilities installations in territory where these occur. At facilities, large number steel structures, which under action temperature quickly lose their strength deform....
The work proposes the use of aluminum oxide-based ceramic objects with a TPMS-Q-surface geometry as elements armor structures. samples were produced using SLA-DLP 3D printing method. main properties sample determined physical-chemical analysis methods: apparent density ρap = 3.6 g/cm3, open porosity Popn 8.5%, microhardness Hµ 15.3 GPa, water absorption W 2.4%, elastic modulus E 405 GPa. Stiglich criterion M 1.72 EPa2·m3/kg, and Shevchenko K 0.8.
Two ranges of dielectric permittivity (k) increase in polymer composites upon the modification BaTiO3 filler with multiwalled carbon nanotubes (MWCNTs) are shown for first time. The is observed at low MWCNT content composite (approximately 0.07 vol.%) without a considerable loss tangent and electrical conductivity. This effect determined by intensification filler–polymer interactions caused nanotubes, which introduce Brønsted acidic centers on modified surface thus promote cyanoethyl ester...
Energy-absorbing properties of cellular materials with D, G, IWP*, N, P, Q, PJ triply minimal energy surface geometries were investigated. Materials made glass-filled polyamide by selective laser sintering. Mechanical structures determined depending on the geometry: highest specific compressive strength σsp.max >8 MPa∙cm3/g is possessed samples geometry IWP* and PJ; absorption Asp = 14.5 MJ/m3 in sample N. A mass-strength criterion for proposed. The maximal values are from 4.16 MPa2/g,...
Powders of X6CrNiTi18-10 stainless steel were fabricated from original workpieces different grade by gas atomization method. It was found that it is necessary to use argon as a for steel, since the nitrogen leads formation its compounds, namely, titanium nitride. shown all used – electric arc, slag and vacuum arc refinement allow one obtain powders suitable further utilization in selective laser melting technology 3D printing. The main physicochemical technological properties obtained have...
Electrical properties of polymer-inorganic nanocomposites depend strongly on their structure, i.e., distribution filler phase in a polymer matrix. This factor is especially important the case composites consisting two phases with significantly different properties. To improve electric such this study ferroelectric core/magnetic shell approach suggested. BaTiO3 core was coated SiO2–CoFe2O4 magnetic followed by incorporation thus obtained core/shell particles into presence external field to...
Electrical properties of polymer-inorganic nanocomposites depend strongly on their structure, i.e., distribution filler phase in a polymer matrix. This factor is especially important the case composites consisting two phases with significantly different properties. To improve electric such this study ferroelectric core/magnetic shell approach suggested. BaTiO3 core was coated SiO2–CoFe2O4 magnetic followed by incorporation thus obtained core/shell particles into presence external field to...