Open Access Conference Proceedings

Abstract: Polytetrafluoroethylene (PTFE) which is also called as “TEFLON” is a synthetic fluoropolymer of tetrafluoroethylene that has wide applications due to its differentiating properties. In this study, different PTFE dispersions for preparation of polytetrafluoroethylene mesoporous active membranes doped by basalt and carbon particles which were created in high voltage electrostatic field has been studied. [..] Read more

Abstract: The crystallinity of fibres prepared by electrospinning shows lower level in comparison with samples processed by common technologies such as moulding or film casting. Thus, the attempts to improve the structure of electrospun fibres in order to increase physical and mechanical properties of nonwoven webs are obvious. [..] Read more

Abstract: During the last decade, interest in conducting polymer/clay nanocomposites increased, mostly due to their very good physical, chemical, and mechanical properties, which can be significantly enhanced in various ways compared to pristine polymers. One of the most studied conducting polymers is polyaniline (PANI) which has unique electrical and optical properties, and, in addition, its interaction with clay structure leads to improvement of resulting electrical conductivity. [..] Read more

Abstract: Nitrogen implantation into titanium and its alloys significantly improves their surface hardness, sliding behaviour, wear and corrosion resistance. A thin surface nanolayer originating, e.g., from air exposure or from condensation of oil vapours modifies the ion energy distribution and causes a difference in the ion range. [..] Read more

Abstract: Titanium materials are widely used in aerospace industry, in chemical industry and in total joint replacements because of their low density, high strength, good corrosion resistance, high toughness, and good biocompatibility. However, titanium materials have poor wear resistance and high friction. [..] Read more

Abstract: Nitrogen incorporated organosilicon films were prepared by means of plasma enhanced chemical vapor deposition using capacitively coupled RF glow discharges in mixtures of hexamethyldisiloxane and nitrogen. The flow rate of nitrogen was 2-10 sccm and the flow rate of hexamethyldisiloxane was 0.3-0.4 sccm. [..] Read more

Abstract: The paper deals with the study of layers applied by magnetic sputtering on samples for electron microscopy to obtain electric conductive surface. It describes the effect of different deposition parameters on the change of the surface morphology of the samples. [..] Read more

Abstract: The aim of the present work was to study the dependence of mechanical properties of Ti/Ni multilayer thin films on the thicknesses of constituent Ti and Ni layers. The multilayer thin films were synthesized by deposition of Ti and Ni layers alternately on single crystalline silicon substrates using direct current magnetron sputtering method. [..] Read more

Abstract: TiCN layers are widely used for their high hardness and abrasion resistance. Their structure, chemical composition and mechanical properties are affected by deposition parameters. [..] Read more

Abstract: In this work, we applied a method of light scattering for in situ detection of organosilicon nanoparticles (NPs). Plasma polymerization of hexamethyldisiloxane (HMDSO) in its 10 % mixture with Ar was used to synthesize the NPs by means of a gas aggregation cluster source (GAS). [..] Read more

Abstract: Nanoindentation instruments are commonly used to study hardness, elastic modulus and other related mechanical properties at the nanoscale. They are a popular tool for the study and design of thin film systems, nanocomposites and other nanostructured materials and devices. [..] Read more

Abstract: The deposition of organosilicone thin films from mixture of hexamethyldisiloxane (HMDSO) and oxygen by using capacitively coupled R.F. glow discharges under dusty plasma conditions was investigated. [..] Read more

Abstract: Diamond can become highly conductive due to impurity impact ionization and avalanche effects when sufficiently doped with boron and exposed to high electric field. Knowledge of those effects is important for the fabrication of potential novel high power electronic devices. [..] Read more

Abstract: Hydrogels represent nowadays important material either from scientific point of view, as well as for the applications. This contribution is focused on the study of transport properties of reactive hydrogels based on agarose. [..] Read more

Abstract: The characterisation of glidants is important for process control and the design of its processing conditions or handling devices in pharmaceutical industry. Frequently used, fine glidants as Aerosil®, Cab-O-Sil® and magnesium stearate are specific for characterisation of dynamic behaviour. [..] Read more

Abstract: A large amount of microelectronic devices components are based on the unique properties of gallium nitride. Our purpose was to find the most effective and simple way for gallium nitride (GaN) nanoparticles synthesis. [..] Read more

Abstract: The hardmetal Cr3C2-25NiCr (180-220 μm thick) coatings have been produced on a steel substrate by a new multi-chamber gas-dynamic accelerator. The Cr3C2-25NiCr powder (POLEMA JSC, Russia) (35-140 μm) was used as the starting material to deposit a dense layer. [..] Read more

Abstract: The main problem to the use of aluminum oxide as a coating material is its brittleness due to low toughness and low bending strength. The combination of high hardness, strength, fire resistance inherent in aluminum oxide, with plasticity and thermal conductivity, characteristic for titanium causes interest in coatings obtained on the basis of a composite of Al2O3 and Ti. [..] Read more

Abstract: The theoretical models are suggested which describe specific plastic deformation mechanisms in nanotwinned materials. Materials containing high-density ensembles of nanoscale twins (nanotwinned materials) exhibit the outstanding mechanical and physical properties - simultaneously high strength and functional ductility at room temperature. [..] Read more

Abstract: In this work, four different flowability powder tests – angle of repose measuring, flow from hopper simulation, classical tube method and evaluation of flow functions using FT4 powder rheometer - were compared. The TiO2 powders with different content of nanoparticle were used for these comparisons. [..] Read more