Features in Formation and Properties of Langmuir-Blodgett Monolayers

Features in formation of Langmuir-Blodgett films and possible control and study of their properties directly in deposing them onto sub-strates are studied. Linearity of the dependence of polarization on the slope angle of the static dipole moment for C18H36O2 and C18H34O2 has been checked. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3366

The Photoluminescence Properties of Ablated ZrO[2] Nanoparticles

The method of optical spectroscopy determined photoluminescence properties of zirconia nanoparticles produced by laser ablation. The effect of annealing of nanoparticles in the range from 400 to 1000 °C on their luminescence is investigated. It is shown that the emission of the luminescence make it possible to conclude about the type of defects in the structure of nanoparticles and their dynamics during annealing. A qualitative explanation of the detected patterns is provided

Processes of Defragmentation, Thermocapillary Extraction and Agglomeration of Ultradispersed Gold from Mineral Raw Materials and Technogenic Products within Laser Radiation Field

According to the analysis of the results of complex studies of mineral raw materials and man-handle products containing ultra-dispersed gold, silver, and platinum before and after laser treatment, a qualitative physical model which explains the origin of thermal processes occurring under the action of laser radiation is proposed. It is noted that laser treatment of those materials generates processes of defragmentation, thermocapillary extraction, and agglomeration of micro-and nanoinclusions of these metals. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3565

Microstructural Barrier-locking Formation Mechanism of Dispersed Current-forming Components of Current Power Supply

The influences of carbon additive on the structure and phase composition of the positive electrode ma-terial as well as technical and operational characteristics of starter lead-acid batteries have been studied. The mechanism of interaction of carbon additives with lead powder is proposed. It is established that the presence of carbon in the positive electrode material increases the lifetime of lead-acid starter batteries, as confirmed by tests. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3626

Defragmentation, Thermocapillary Extraction and Agglomeration of Ultradispersed Inclusions of Noble Metals in Laser Processing

Thermal-physics and hydrodynamic processes are analyzed that appear in laser processing in mineral raw materials and technogenic products with ultradispersed inclusions of noble metals. It is established that laser processing of these materials is accompanied by the processes of defragmentation, thermocapil-lary extraction, and agglomeration of micro- and nano inclusions of noble metals. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3635

Influence of Electroconductive Additives in the Positive Electrode Material on Morphology, Structure and Characteristics of the Lead-acid Batteries

A.P. Kuzmenko, E.A. Grechushnikov, V.A. Kharseev, M.B. Dobromyslov, J. Nano- Electron. Phys. 6 No 3, 03028 (2014) When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3627

Interrelation of Shape and Structure of Domain Walls with Magnetic Inhomogeneities

By using atomic force microscopy (resolution of 40 nm) the effect of surface roughness and internal inhomogeneities on the fine structure of domain walls of different types in thin transparent orthoferrite samples cut perpendicular to the optic axis for YFeO3 and axis [001] for DyFeO3 has been studied. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3366

Influence of the Substrate Temperature on the Size Distribution and Phase Composition of Ablated HfO2 Nanoparticles

The influence of the substrate temperature on the formation of high-temperature phases of hafnium dioxide in the process of pulsed laser ablation is investigated. It is established that the HfO2 nanoparticles of the high-temperature tetragonal and cubic phases with a quantitative content up to 50 % are formed on the surface of the substrate at room temperature during the laser ablation with intensity of 1010 W/m2. It is shown that with increasing the substrate temperature the average size of the ablated nanoparticles decreases and the quantitative content of the high-temperature phases is increased up to 70 %

Piezoelectric Properties of Barium Titanate Langmuir Films

Langmuir films from stabilized barium titanate nanoparticles have been produced. The processes of polarization and polarization reversal of ferroelectric coatings obtained were studied. The inverse piezoelectric effect has been recorded and its quantitative characteristics have been determined

3D-Self-Assemblage and Self-Organization on Natural Colloidal Microinclusions in Mineral Sediments

The results of micro- and nanoscale research of fractal structure sediments from mineral water re-ceived by the drop method are given. Qualitative analysis of the underlying physical phenomena, allowed us to establish the conditions of their 3D-fractalization that consider the size of colloidal nanoparticles, its location and height from the drop center : rmin Rmax hmax and rmax Rmin hmin. It is shown that the main contribution to 3D fractalization is due to surface tension forces and the Coulomb force interaction. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3625