Materials Literature
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Results are presented from synthesizing and characterizing magnetite nanoparticles with spherical, cubic and octahedral geometry. Magnetic properties (saturation magnetization, residual magnetization, and coercive force), cytotoxicity, and T 2 relaxivity are measured for the synthesized nanoparticles. They are charact…
The synthesis, characterization, aggregation, optical, fluorescence and singlet oxygen generation properties of 2-furylmethoxy substituted gallium and metal-free phthalocyanines (2 and 3, respectively) are reported for the first time. Characterization of the novel synthesized compounds was performed with elemental ana…
Stainless steel is widely used due to its high resistance to corrosion, rust and stains. However, the surface hardness of stainless steel is not high. This limits its engineering applications. Graphene is a material with a very high intrinsic strength. In order to broaden the range of applications of stainless steel,…
Defects in the hexagonal boron nitride (h-BN) layer can facilitate the tunneling current through thick h-BN tunneling barriers. We have investigated such current-mediating defects as local probes for materials in two dimensional heterostructure stacks. Besides IV characteristics and negative differential conductance,…
This paper presents a novel method for condition monitoring of High Voltage (HV) power plant equipment through analysis of discharge signals. These discharge signals are measured using the Electromagnetic Interference (EMI) method and processed using third order Higher-Order Statistics (HOS) to obtain a Bispectrum rep…
Using the liquid-phase methods of synthesis—the coprecipitation of hydroxides and the hydrothermal method—mesoporous xerogels are obtained based on the ZrО 2 –Y 2 О 3 –CeО 2 system with 5–8-nm particles and powders (after the heat treatment of xerogels at 600°C) with a coherent scattering region (CSR) size of 9 to 10…
The effect of surface siloxane nanolayers on the electrochemical and corrosion behavior of zinc is studied. It is found that surface self-organizing siloxane nanolayers inhibit anodic dissolution of zinc and its corrosion in chloride-containing electrolytes and under atmospheric conditions and can also cause a decreas…
— Scanning electron microscopy shows that in pure niobium deformed by shear under pressure, a grain structure characterized by an axial texture of recrystallization is formed from the textureless deformed state during annealing. The sharpest texture is formed during annealing at 800°C. The fraction of the area occupie…
This work describes the synthesis of composites steatite/flexible polyurethane by replacing 4.5 wt. % of polyol with steatite rock powder. We evaluated two mechanical properties of composites (comfort factor and support factor) for various formulations based on a fractional factorial design. The new synthesized compos…
The paper introduces plasma technologies developed at the Department of Applied Mechanics and Materials Science (TSUAB, Tomsk, Russia). These technologies include the processing techniques for silica glass, microspheres, and protective-decorative coatings for silicate materials using the low-temperature plasma. The pl…
The present work simulates a concept about how to drive droplet flowing through non-wetting (hydrophobic) capillaries without any external force by using many-body dissipative particle dynamics. By decorating the capillary segments with wettability gradients, a droplet with proper radius can be absorbed by the non-wet…
In article number 1801392, Linfeng Hu and co-workers develop a (NixCo1−x)9Se8 solid-solution series with hierarchical nanodendrite morphology and fractal features as electrodes for flexible, asymmetric supercapacitors. The optimal (Ni0.1Co0.9)9Se8 nanodendrite arrays deliver a specific capacitance of 3,762 F g−1 at a…
The hemostatic and immunostimulating activity and cytotoxicity were determined for a number of chitosans differing in molecular weight (from 3 to 510 kDa) and degree of acetylation (from 1 to 25 mol%) that were used as adjuvants in inactivated poliomyelitic, influenza, and live influenza vaccines. It has been shown th…
Controlled nucleation and growth of metal clusters in metal deposition processes is a long-standing issue for thin-film-based electronic devices. When metal atoms are deposited on solid surfaces, unintended defects sites always lead to a heterogeneous nucleation, resulting in a spatially nonuniform nucleation with irr…
The main objective of this work is to study a photovoltaic/thermoelectric hybrid generator system, ranging from characterisation of thermoelectric (TE) and photovoltaic (PV) modules basic elements of thermal and PV energy conversion into electrical energy through necessary modelling steps. The bibliographic study allo…
In this work we present a simple way to improve the dispersion of titanium dioxide (TiO2) particles inside chitosan/potato-starch films by chemical modification of the surface of these nanoparticles via silanization. The films increased in luminosity due to the modified particles, in addition to the fact that the wate…
Abstract Some paper and paperboard grades require strength also when rewetted. The purpose of this study was to investigate the impact of web forming method, different foaming agents, polyamideamine-epichlorohydrin (PAE) wet strength resin, and retention aids on the strength development of hand sheets. Only a slight,…
Polyamide 66 (PA 66) and short glass fiber reinforced versions of PA 66 are widely used for solar-thermal applications, in which thermal and environmental loading of components is from high importance. In this study, the influence of crosslinking via electronic beam irradiation on the morphology and mechanical behavio…
Vinasse is the main liquid waste of the ethanol industry and its valorization by a bioprocess as a substrate for production of a value-added product contributes to the ethanol process. This work aimed to study the possibility to use vinasse for poly(3-hydroxybutyrate) (PHB) production by Cupriavidus necator. The growt…
Low density and good mechanical properties predetermine magnesium alloys for use in the automotive and aviation industries. Also, their biocompatibility and nontoxicity make these materials interesting for research in the field of biodegradable implants. Magnesium alloys with rare earth elements are the most advanced…