A5055035174- Hydrogen Storage and Materials
- Aluminum Alloys Composites Properties
- Shape Memory Alloy Transformations
- Hybrid Renewable Energy Systems
- Iron-based superconductors research
- Graphene research and applications
- Corporate Taxation and Avoidance
- MXene and MAX Phase Materials
- Rare-earth and actinide compounds
- 2D Materials and Applications
- High Entropy Alloys Studies
- Dielectric materials and actuators
- Magnetic Properties and Synthesis of Ferrites
- Magnesium Alloys: Properties and Applications
- Electromagnetic wave absorption materials
- Composite Material Mechanics
- Iron oxide chemistry and applications
- Thermal properties of materials
- Adsorption and biosorption for pollutant removal
- Covalent Organic Framework Applications
- Polymer Nanocomposites and Properties
- Advanced Sensor and Energy Harvesting Materials
- Characterization and Applications of Magnetic Nanoparticles
- High voltage insulation and dielectric phenomena
- Chemical Synthesis and Characterization
AGH University of Krakow
2015-2023
Shibaura Institute of Technology
2018-2019
In this article, the results of a study magnetic dynamics superparamagnetic iron oxide nanoparticles (SPIONs) with chitosan and polyethylene glycol (PEG) coatings are reported. The materials were prepared by co-precipitation method characterized X-ray diffraction, dynamic light scattering scanning transmission electron microscopy. It was shown that cores contain maghemite, their hydrodynamic diameters vary from 49 nm for PEG-coated to 200 chitosan-coated particles. in terms function...
A study of Ti3Al1−xSixC2 (x = 0 to x 1) MAX-phase alloys is reported. The materials were obtained from mixtures Ti3AlC2 and Ti3SiC2 powders with hot pressing sintering technique. They characterised X-ray diffraction, heat capacity, electrical resistivity, magnetoresistance measurements. results show a good quality crystal structure metallic properties high residual resistivity. resistivity weakly varies Si doping shows small, positive effect. exhibits quadratic dependence on the magnetic...
The study presented is focused on the influence of carbon addition properties Fe‐Mn‐Si type intelligent materials with basic composition Fe64Mn30Si6 (wt. %). Three alloys were prepared, starting from elemental powders, 0, 0.1, and 0.3 wt. % carbon, at corresponding silicon content reduction. For synthesis, mechanical alloying, sintering, annealing applied. Further process involved deformation subsequent heating in a furnace. High temperature X‐ray diffraction patterns, obtained room up to...
The utilization of used crosslinked functional polymers (CFP) applied as sorbents or ion-exchangers is a great challenge arising from the need to protect environment. In this paper we report very promising way obtaining carbon/magnetic composites based on metal (Co2+; Ni2+; Fe3+) derivatives butadiene rubber-based phosphorus-containing polymer, which were treated model CFP. We proposed facile one-step thermal degradation approach transform CFP into (CMC). obtained CMCs contained mixture...
The origin of nematicity and its relation to superconductivity in iron pnictide high-temperature superconductors remains unclear. One possible sources is the uneven occupation Fe ${d}_{xz}$ ${d}_{yz}$ orbitals. Here, by using x-ray linear dichroism technique, we show that such an imbalance present $\mathrm{Eu}{({\mathrm{Fe}}_{1\ensuremath{-}x}{\mathrm{Co}}_{x})}_{2}{\mathrm{As}}_{2}$ single crystals deep tetragonal phase also superconducting state, where find orbital has a higher as...
Abstract The results on the improvement of heat transport and reaction rates in magnesium hydride composite are reported. It has been achieved by admixing flake graphite temperature proof silicone resin and, further, through their alignment with applied strong electric field. oriented, graphite-field samples show a 22-43% higher thermal conductivity, comparison isotropic samples, reaching values 1.28 W/m·K. Improved transfer was found to increase corresponding times composites were shortened...
Polyamide-based nanocomposites containing graphene platelets decorated with poly(acrylamide) brushes were prepared and characterized. The grafted from the surface of oxide (GO), a thermally conductive additive, using atom transfer radical polymerization, which led to formation coated covalently tethered polymer layers (GO_PAAM), accounting for ca. 31% total mass. Polyamide-6 (PA6) 1% GO_PAAM formed by extrusion followed injection molding. thermal conductivity nanocomposite was 54% higher...
Abstract Superconductivity in high-temperature superconductors such as cuprates or iron pnictides is typically achieved by hole electron doping and it of great interest to understand how affects their properties leading superconductivity. To study we conducted Fe As K edge x-ray absorption spectroscopy measurements on several doped compounds from the 112 122 family Eu-based pnictides. XANES EXAFS results confirm that dopants are located at expected sites. For both families found an charge...
Successful one-step manufacturing of micro-foils NiTi shape memory compound by pulsed-current sintering nickel and titanium is reported. Sandwich-like starting configurations Ni/Ti/Ni (ST1, ST4), Ti/Ni/Ti (ST3), a simple Ni/Ti (ST2) one, were used. XRD differential scanning calorimetry (DSC) measurements revealed multistep martensitic transformation, much more pronounced for ST1 than ST2 ST3. SEM/energy dispersive X-ray spectrometer (EDS) showed the predominant phase in ST1, ST4, other...