The estimation of the dependence of anode potential of the temperature and current density. It is established that the activation energy of the anodic oxidation process HORTA, HORTA-I1 and OITA decreases with increasing potential, which corresponds to the limiting stage of charge transfer. The activation energy of the anodic process refers to the collective processes of transformation of the catalytic coating and anodic oxidation of the chloride ions. The latter process limits the adsorption of atomic chlorine, and the increase in activation energy is correlated with increased corrosion resistance. The dependence of the activation energy of from the content in the catalytic layer of iridium has an extreme character. The maximum is reached when the content of iridium 60-70%.

Keywords: ORTA, ORTA-I1, OITA, activation energy, anodic oxidation, adsorption of chlorine, sodium hypochlorite, chlorine, charge transfer, a mixed oxide, electrode potential

Interference of mineral fillers, phosphor and chloride contained plasticizes, bromine contained fireproofing compounds and ferrocene derivatives to thermal stability, ignitability and smoking capability of epoxy composite materials was under consideration. The authors have eliminated that the phosphate plasticizes do not affect practically to epoxy polymers' combustibility, but to reduce smoking capability of composites. Different types of mineral fillers by concentration less then 45% by mass do insignificantly affect ignitability of epoxy composites. Different types of aromatic bromine contained additive fireproofing compounds do not affect to combustibility of such composites. The ferrocene derivatives surpass the ferrocene by effectiveness of smoke redesign. Correlation of the oxygen index with limiting oxygen concentration, heat of burring and critical density of heat flow graph was shown up. The main service properties and the data of inflammability of original patented composites are presented.

Keywords: bromine contained fireproofing compound; ignitability; combustibility; smoke ability; composites; fillers; plasticizes; ferrocene derivatives; epoxy oligomers

Academician Oleg Figovsky is the founder of the Israeli research center "Polimate", as well as scientific Director R&D of companies "Polimate" and the NTI / HCT (USA). He has more than 500 inventions. The article briefly describes the most important patents received in the last 20 years in areas such as materials science, nanotechnology, building construction.

Keywords: non-isocyanate polyurethanes, nanotechnology, polymer concretes, hybrid materials, constructions

We used calculations from the first principle to systematically investigate the adsorption of tungsten on the Ti-terminated (0001) TiB2 surface. Atomic structure of two surface layers in the model contains disordered vacancies of titanium and boron atoms. Within the density functional theory, we studied the local atomic structure of the R/TiB2 (0001) surfaces (R = W, N, O) adsorption models and their electronic properties. For the first time, the bond length and the adsorption energy for different reconstructions of the R/TiB2 (0001) surface atomic structure were established. We have estimated the effective charges on the tungsten atom (N and O) atoms and atoms its surrounding atoms in studied reconstructions.

Keywords: Titanium diboride, adsorption, atomic structure, electronic structure, effective charge, laser alloying

The use of sunflower husk waste allows to solve the problem of utilization of agricultural waste and obtaining adsorbents for wastewater treatment of industrial production from ions of heavy metals, in particular copper. Studies on the evaluation of the adsorption capacity of materials have been carried out and choose the optimal method of manufacturing the sorbent.

Keywords: husks of sunflower, vegetable adsorbents, waste water, heavy metal ions, melanin

Showing concentration change of Raman spectra of frequencies in binary salt systems molten alkali metals with a common cation containing nitrate and perchlorate - anions. There persistence frequency when changing the composition of the molten salt systems.

Keywords: melts nitrates, alkali metal perchlorates, Raman spectra, binary salt systems

The present work is devoted to the description of the new technology, which relates to a method for producing track membranes by penetration of the working medium within the matrix, and its passage through the matrix of polymer material. The working substance interacts with the matrix in the form of high-speed flow of solid particles. Method for treating thin-film materials with a flow of electrically chargeable solid particles in an electric field generated between two oppositely charged electrodes is proposed. One of the electrodes is made in the form of a net that is penetrable to the solid particles, used as a charging electrode for acceleration of the particles passing toward the thin-film material located above this electrode, while the electrode has a continuous surface, and is used as a charging electrode. The electric field is adjusted to the value needed to satisfy the treatment conditions so that the particles can either be retained in the treated material or can pass though the material, thus forming filters for gases or liquids, track membranes, or the like.

Keywords: membranes manufacturing; trackmembranes; electrically charged solid particles; electric field

TiO2 thin films are widely used as a transparent layer n-type conductivity in the perovskite solar cells. Nanocrystalline TiO2 films were deposited on the surface of glass substrates coated with tin oxide with fluorine (FTO) by spin-coating and subsequent laser annealing radiation with a wavelength of 1064 nm. The effect of laser annealing on grain size in the TiO2 film and spin-coating speeds on its thickness. It is found that the grain diameter in the resulting TiO2 films on average 17-64 nm at a power of laser annealing 30-70 W. It was found that the thickness of the TiO2 film is changed in the range of 72-124 nm spin-coating speed. Optimal parameters TiO2 thin film formed by laser annealing can enhance the efficiency of the perovskite solar cell.

Keywords: thin film, TiO2, centrifugation, laser annealing, surface morphology, thickness

Compositions of receiving and using waterborne epoxy - NIPU coating were developed. Experiments to study the compatibility of components in the waterborne epoxy - NIPU coatings were carried out . The optimum ratio of the components of the composition, in order to obtain the necessary physical and mechanical properties of the coating was determinate. The optimal compositions were recommended for industrial application.

Keywords: coating, epoxy & nonisocyanate polyurethane, waterborne system, physical and mechanical properties

The influence of mechanical activation conditions on the the sintering temperature, grain size and microstructure of PZT-19 ceramics was established. It was found that the mechanical activation method allows to increase the uniformity of ceramics grains.

Keywords: ferroelectrics, particle size distribution, green building, mechanical activation, PZT

Many complex oxides of transition metals show effect of enormous dielectric permeability. New complex layered oxides LnSr2CuTiO6,5 (Ln = La, Nd, Pr) are synthesized. Their structure by means of x-ray diffraction on the Shimadzu XRD-7000 S is investigated. Processing of XRD was carried out in the program FULLPROF-2013. The main X-ray reflexes are indicated in space group I4/mmm (№ 139). The data of the crystal-chemical analysis which are carried out taking into account a charge state and coordination environment of cations show that distortion of coordination polyhedrons is significantly reduced in series Ln = La→Nd. The unit cell parameters naturally decrease according to reduction of ionic radiuses of La→Nd. Dielectric properties of materials investigated using the universal analyzer of a frequency response Solartron 1260A in the range of frequencies 1mHz - 16МHz with a signal amplitude 500-900 mV. Increasing the dielectric constant is possible due to the charge ordering caused by uneven distribution of charge. Frequency dependences of an imaginary and real part of dielectric constant are given.

Keywords: dielectric constant , complex oxide, transition metal, perovskite, x-ray diffraction, microstructure, crystal-chemical analysis, impedance- spectroscopy, charge ordering, coordination polyhedron

Solved calculation of equilibrium distribution of Ge and the density of elastic energy in semiconductor film SiGe/Si. Built the 3D model of flat film with pyramid islands and dislocations. Calculation of elastic deformation is made using the finite element method. In this model takes into account the uneven distribution of Si and Ge due to threading dislocations, misfit stress and dislocation loops. The results showed that in the two-part elastic layer SiGe provision balance dislocation is located in the depth of the inconsistencies of the film and not on the boundary of film-substrate. This conclusion applies to the penetrating dislocation, while changing the orientation of dislocation much changes box elastic stresses and distribution component of Si and Ge in the film. The results of the calculation model of the sample, including prismatic dislocation loop, shown a significant impact on the value of the elastic energy of the film. While accounting for the effects of non-uniform distribution of SiGe alloy component does not result in a significant change in the magnitude of elastic energy model and critical values of height. According to calculations, taking into account the heterogeneity of the distribution component of the alloy transition to the formation of Epitaxial islets on the film surface occurs at lower values of their critical size, especially when small concentrations of Ge in the alloy. The results of calculation of the elastic energy of the film received at work, can be applied to calculate the conditions of occurrence of defects in nanometer dimension on the original flat free surface of semiconductor films.

Keywords: germanium, thin film, heteroepitaxy, SiGe, misfit dislocations, threading dislocation, elastic energy density, dislocation loop

The present work is devoted to study of atomic and electronic structure of nitrospiropyran molecules deposited on a Bi (111) substrate before and after irradiation by UV light and X-rays. The study was done using the density functional theory (DFT) and a theoretical analysis of the X-ray absorption fine structure (XAFS) spectroscopy. As a result of the calculations the low-energy structure for nitrospiropyran molecules on a Bi (111) substrate was obtained.

Keywords: local atomic and electronic structure, X-ray absorption spectroscopy, photoisomerization, density functional theory

The X-ray absorption spectroscopy (XAS) is a powerful tool for local atomic structure investigation of materials with different origin including nanocomposites. The extended X-ray absorption fine structure spectroscopy (EXAFS) is very sensitive to the details of local environment of X-ray photon absorbing atom. In order to perform quantitative study of EXAFS data the preliminary calculations of scattering phases and amplitudes of photo-electron in the crystal are required. The quality of this calculation highly affects on precision of such results, such as inter-atomic distances and coordination numbers. An existing methods use iterative self-consisted approach for the estimation of interatomic potential which could be neglected using fixed potential value in interatomic region (“muffin-tin”-zero). The Hedin-Lundqvist exchange potential is commonly used. The paper presents the results of the development and testing of computer code HFampl for the first-principle calculation of scattering phases and amplitudes within “muffin-tin” approximation using exact Hartree-Fock (HF) exchange potential. The development using GNU compilers collection has allowed an execution of the codes in any compatible operating systems (Windows, Linux, Mac). The atomic configurations were prepared for the most elements of the periodic table. The program tests performed on metals, oxides and iron-containing aqueous solutions demonstrated good applicability of the phases and amplitudes for the precise structural analysis, which allows accuracy up to 1% in interatomic distance calculation. Such accuracy in distances determination is as good as accuracy of common program packages. But values of other parameters (such as reduction factor and Debye-Waller parameter) are more realistic in case of application scattering phases and amplitudes obtained with HFampl code.

Keywords: Photoelectron Scattering Phases And Amplitudes For The Determination Of Atomic Structure By EXAFS Spectroscopy

Produced synthesis steklomatrits to make white glass-ceramic enamel coatings for steel products with various color shades in the system R2O-RO-B2O3-Al2O3-SiO2-TiO2-P2O5-F- and investigated their spectrophotometric properties. We describe the basic features of different models of determining the color characteristics of the resulting coatings and choose the best for the objective of determining the parameters of color shades of white glass-ceramic enamel coatings for steel products.

Keywords: glass-ceramic enamel coating, protective coating for steel products, corrosion protection, spectrophotometric characteristics, color shades, whiteness, brightness, color models

For hexagonal structures RMnO3, where R - rare earth ions are Er, Tm, Yb, Lu, and Y entered anisotropic relative tolerance factor tx / tz. A correlation tx / tz with changes spontaneous polarization (strain) on the temperature and pressure, with a lattice parameter changes from the radii R ion concentration and changes in the structural parameters of R1-xAxMnO3 (A - Ca, La) solid solutions. It is shown that an increase in the Neel temperature TN corresponds to a decrease in tx / tz, with an increase tx / tz external pressure - increased temperature phase transitions in structures RMnO3 and concentration phase transitions Y1-xAxMnO3 (A - Ca, La) correspond to abrupt changes in tx / tz.

Keywords: tolerance factor, hexagonal ABO3 structure, chemical composition, temperature, pressure, solid solution

The structure of synthesized ferroelectric samples of PbSc0.5Ta0.5O3 after mechanoactivation were studied by means of X-ray absorption spectroscopy(XANES), X-ray diffraction (XRD) and scanning electron microscopy (SEM). Based on the combination of effective experimental methods and computer modeling of theoretical X-ray absorption spectra near the L3 - edge of tantalum and lead was studied character of structural distortions for investigated samples after mechanoactivation.

Keywords: Ferroelectrics materials, mechanoactivation, XANES, defects

Investigated the influence of contents of sodium - carboxymethylcellulose, glycerin and powder Fe on electrical properties of composite coatings. Proposed regression model describing the relationship of the values of the electrical resistivity of the coating and dielectric strength to their composition used to predict the electrical properties of the formed coatings. Showed the correlation between the microstructure of coatings with Fe powder and electrical properties.

Keywords: sodium-carboxymethylcellulose, the iron powder, dielectric strength, resistivity, composite material

Interference of mineral fillers, phosphor and chloride contained plasticizes, bromine contained fireproofing compounds and ferrocene derivatives to thermal stability, ignitability and smoking capability of epoxy composite materials was under consideration. The authors have eliminated that the phosphate plasticizes do not affect practically to epoxy polymers' combustibility, but to reduce smoking capability of composites. Different types of mineral fillers by concentration less then 45% by mass do insignificantly affect ignitability of epoxy composites. Different types of aromatic bromine contained additive fireproofing compounds do not affect to combustibility of such composites. The ferrocene derivatives surpass the ferrocene by effectiveness of smoke redesign. Correlation of the oxygen index with limiting oxygen concentration, heat of burring and critical density of heat flow graph was shown up. The main service properties and the data of inflammability of original patented composites are presented.

Keywords: bromine contained fireproofing compound; ignitability; combustibility; smoke ability; composites; fillers; plasticizes; ferrocene derivatives; epoxy oligomers

"We studied heavy loamy calcareous ordinary chernozem developed from the loess-like loam at the Donskoe training farm in Rostov oblast. Samples from the plow (0–20 cm) layer were used in the experiment. The soil samples were contaminated with 300 mg/kg of Cu, Zn and Pb introduced in combination. The metals were introduced in the form of acetates. In was showed that under static conditions, ammonium acetate does not extract the entire stock of mobile elements. In dynamic conditions Cu, Zn и Pb were more extracted. The degree of extractable metals by ammonium acetate buffer from the soil in background and polluted soil can be presented in a series: Zn> Pb> Cu."

Keywords: soil, readsorbtion, heavy metals, zinc, copper, lead, extraction

Effect of water-soluble polymers additive and surface treatment on particle size distribution are shown in this article.

Keywords: electrolytic copper powder, water-soluble polymer, polyvinylpyrrolidone, polyacrilamide, electropolishing, atomic force microscopy

The absorption of copper, zinc and lead ordinary chernozem loam with a changing ratio of the solid and liquid soil phases. It is shown that an increase in the ratio of 2 times solid and liquid phase adsorption capacity and retention strength of copper, zinc and lead on the surface of soil particles increases due elektroselektivnosti.

Keywords: soil adsorption, copper, zinc, lead, ratio solid and liquid phases

In this paper we investigate the signal delay in interconnection based on carbon nanotubes. The analysis of the electrical parameters of the equivalent circuit interconnection and the dependence on the length of the delay of the signal beam nanotubes. Define a set of parameters that characterize the features of the functioning of the carbon nanotubes as interconnects. Compiled by the equivalent model of the interconnect based on carbon nanotubes and determined it electrically. Based on the functions of the signal at the output of the interconnect simulated signal delay in interconnection.

Keywords: Nanotube, delay, signal interconnect circuitry

The article presents a comparative analysis of nanopowders of copper obtained by electrolysis with the use of the stabilizer polyvinylpyrrolidone (PVP). It is established that the properties of powders of copper determines PVP polymer film formed on the surface of nanoparticles

Keywords: Nanopowders of copper, stabilization of particles, granulometric composition, differential thermal analysis, water-soluble polymer

In the present work the mesoporous transparent silica monolith with surface area of 650 m2/g was obtained by sol-gel method. Introduction of gold salt into reaction mixture allowed to form micro- and nanoparticles of gold in monolith's volume by rising the temperature. The obtained composite was stabilized by activation in air at 600 °C. It is an useful model for investigation of optical and catalytical properties of noble metal particles.

Keywords: gold nanoparticles, sol-gel synthesis, porous glass