A5078181398- Characterization and Applications of Magnetic Nanoparticles
- Magnetic Properties of Alloys
- Nanoparticle-Based Drug Delivery
- Iron oxide chemistry and applications
- Metallic Glasses and Amorphous Alloys
- Chromium effects and bioremediation
- Minerals Flotation and Separation Techniques
- Nanoparticles: synthesis and applications
- Magnetic Properties and Synthesis of Ferrites
- Metallurgical and Alloy Processes
- Magnetic and transport properties of perovskites and related materials
- Electrohydrodynamics and Fluid Dynamics
Częstochowa University of Technology
2015-2023
Abstract The novel iron-oxide nanoparticles (NPs) stabilized with triethanolammonium oleate were produced. specimens divided into two groups: the top NPs (extracted from supernatant) and bottom (nanoparticles sedimented at of flask during centrifugation), respectively. XRD Mössbauer studies revealed a presence Fe 3 O 4 phase in both types nanoparticles. Furthermore, formation maghemite layer on surface was observed. Average particle sizes determined TEM lower than superparamagnetic limit for...
This work is aimed at presenting a novel aerosol-based technique for the synthesis of magnetite nanoparticles (Fe3O4 NPs) and to assess potential medical application their dispersions after being coated with TEA-oleate. Refinement processing conditions led formation monodispersed NPs average sizes ∼5-6 nm narrow size distribution (FWHM ∼3 nm). The were Triethanolammonium oleate (TEA-oleate) stabilize them in water dispersion. allowed obtaining dispersion, which does not sediment months,...
The eect of tungsten addition on phase constitution and magnetic properties the bulk Fe65Pr9B26-xWx (where x = 2, 4, 6, 8) alloys was studied.The base were prepared by arc-melting high purity elements under Ar atmosphere.Samples produced suction an arc-molten alloy to a water-cooled copper mould (the suction-casting method).In order develop nanocrystalline structure, samples subjected annealing.Heat treatment resulted in evolution that caused changes alloys.X-ray diractometry used determine...
In the present work structural characteristics and heating efficiencies of iron-oxide nanoparticles were studied.The investigated samples produced by co-precipitation Fe-O from mixture Fe 2+ 3+ salts in alkaline environment.Furthermore, influence processing route storage environment on phase structure efficiency was studies for glycol dispersed nanoparticles.The experiments performed 5 wt% glycerol dispersions measurements carried out specimens directly after precipitation those kept...
In the present studies phase structure and magnetic ordering of magnetite nanoparticles were investigated.The powder samples obtained by co-precipitation from Fe(III) Fe(II) salts.SiO2 coating was performed using modified Stöber process.X-ray diffraction revealed presence only one Fe3O4 crystalline both for non-coated SiO2-coated samples.The Mössbauer have shown differences in shapes measured spectral lines particles subjected to process particles.The heating efficiency glycerol dispersed...
The paper presents a characterization of the phase structure by X-ray diffraction and isothermal magnetic entropy changes for amorphous Fe58Co10Zr10Mo5W2B15 alloy sample in as-quenched state.An ingot was obtained arc-melting.The ribbon melt-spinning technique.The measurements at various temperatures allowed study Curie temperature TC |∆SM |.In order to determine phase, three independent methods were used.Determination alloys is not trivial problem, as magnetization does decreases rapidly...
Iron, an important microelement essential to the functioning of body, plays a special role in process respiration.There are more and new products available on pharmaceutical market.Some them were subject previous studies, especially by using Mössbauer spectroscopy.One latest is Biofer.For present tests three tablets from different production series Biofer used for examination elemental composition X-ray fluorescence energy dispersive spectroscopy methods.Information about oxidation iron...