Materials Literature
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The possibility of changing the structure and properties of the wrought low-alloyed, inexpensive Al-Mg- Si alloy due to the use of different modes of severe plastic deformation (SPD) in combination with different types of thermal treat ments both before and after SPD has been studied. It was shown that the use of SPD…
Undoped ZnO single crystals were implanted with 300 keV Si+ ions to a dose of 6 × 1016 cm−2. A combination of X-ray diffraction (XRD), positron annihilation, Raman scattering, high resolution transmission electron microscopy (HRTEM), and photoluminescence (PL) was used to study the microstructure evolution after impla…
The effect of selenium substitution by sulfur in the Tl(1-y)Fe(2-z)Se(2) antiferromagnet was studied by x-ray and electron diffraction, magnetization and transport measurements. Tl(0.8)Fe(1.5)(Se(1-x)S(x))(2) (nominal composition) solid solution was synthesized in the full x range (0 ≤ x(S) ≤ 1) using the sealed tube…
Single- and Double-Switch Cell Voltage Equalizers for Series-Connected Lithium-Ion Cells and Supercapacitors
Applications of Calorimetry in a Wide Isothermal Titration Calorimetry and Microcalorimetry 106 Besides this model of formation of the insoluble complex, there is another model in which the formation of the insoluble complex requires the presence of an inorganic polyion (figure
The perovskite niobates (ANbO3) constitutes an interesting structural family. Silver lithium niobate Ag1-xLixNbO3 (x = 0, 0.3, 0.5 and 0.7) mixed ceramic pellets were synthesized by the by solid-state reaction and sintering method. The lattice parameters of ceramic pellets were characterized by X-ray diffraction (XRD)…
Although the automobile is a commonly used product, it is an extremely complex and technologically sophisticated one. Technology has increasingly altered the manufacturing process for motor vehicles. While cars produced at faster rates, automakers must continue to balance increased productivity and efficiency with qua…
The stable monolayer and multilayer films of colloidal nanocrystals – quantum dots (QDs) were obtained and studied. It is possible to visualize and characterize morphology (structural integrity, etc.) of the QD monolayers by Brewster angle and fluorescence microscopy techniques. The obtained films can be promising ele…
We have studied the mechanisms of a pulsed laser impact on the magnetization conFigureuration in ferrimagnetic multilayered magnetic nanostructures, specifically, tunneling magnetic junctions. The mechanism of such the laser-induced impact is a complex process of laser-induced thermal demagnetization of magnetic subla…
Novel complex surfactants were prepared based on some vegetable oils (Monoethanolamine sulfated fatty acid; SM). The chemical structures of the prepared compounds were confirmed by physical-chemical spectroscopic methods. The studied surfactants were evaluated as corrosion inhibitors for mild steel in CO2-saturated 1.…
This book describes mathematical formulations and computational methods for solving two-phase flow problems with a computer code that calculates thermal hydraulic problems related to light water and fast breeder reactors. The physical model also handles the particle and gas flow problems that arise from coal gasificat…
The present study deals with the analysis of the cylindrical part of a CNG storage vessel, combining a plastic liner and an over wrapped filament wound composite. Three kind of polymer are used in the present analysis: High density Polyethylene HDPE, Light low density Polyethylene LLDPE and finally blend of LLDPE/HDPE…
With a novel asymmetric Schiff-base zinc complex ZnL(H 2 L = N-(3-methoxysalicylidene)-N’-(5-(4-cyanophenyl)-3-methoxysalicylidene)phenylene-1, 2-diamine), obtained from phenylene-1, 2-diamine, 3-methoxysalicylaldehyde, and 5-(4-cyanophenyl)-3-methoxysalicylaldehyde, as the precursor, a series of heterobinuclear Zn-Ln…
Congo red, a conjugated diazo dye which is a derivative of benzidine and napthionic acid, has experienced commercial success because of its ability to dye cotton easily. The unregulated disposal of textile dyes, such as Congo red, has created a challenge for environmental chemists to determine effective, inexpensive t…
Numerical Solutions for Structural Relaxation of Amorphous Alloys Studied by Activation Energy Spectrum Model
In this work, TiAlN and AlCrN coatings were deposited on ASTM-SA213-T-11 boiler steel using Balzer’s rapid coating system (RCS) machine (make Oerlikon Balzers, Swiss) under a reactive nitrogen atmosphere. The corrosion resistance of the substrate, TiAlN-coated and AlCrN-coated samples in a 5 wt% NaCl solution was eval…
The Landau theory of phase transitions has been re-examined under the framework of a modified mean field theory in ferroelectrics. By doing so, one can see that there are two atomic movements involved in the ferroelectric phase transition; the first corresponds to the vibration of the crystalline lattice, which will r…
Quantum interference causes a wavefunction to have sensitive spatial dependence, and this has a significant effect on quantum transport. For example, in a quantum-dot system, the conductance can depend on the lead positions. We investigate, for graphene quantum dots, the conductance variations with the lead positions.…
The thermally stimulated processes in niobium modified lead zirconate titanate ferroelectric system are analyzed from the thermally stimulated depolarization current. Different theoretical models are considered to evaluate the i-T experimental data. The results are associated with the space charge, the pyroelectric re…
The particle scattering function (structure factor) P(q) of a two-dimensional flexible macromolecule (2D-FM), such as thin graphite oxide and graphene oxide, was calculated. The geometrical model used for shrinking the 2D-FM particle was the developable double corrugation surface (Miura folding) of a circular or ellip…