Materials Literature
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The molecular dynamics method is used to simulate the thermophysical properties of SrTiO 3 thermoelectric material in the temperature range 300–2200 K. The Morse-type potential functions added to the Busing–Ida type potential for interatomic interaction are used in the simulation. The interatomic potential parameters…
We have investigated the possibility of long ranged ferromagnetic ordering in Mn doped Cd28Se28 nanocluster using density functional approach. Following the band repulsion theory we have explained that magnetic coupling between Mn atoms substituted in Cd sites is antiferromagnetic and short ranged. However, long range…
The photocatalytic activity of the disodium salt of substituted hematoporphyrin in a model reaction of tryptophan oxidation in the presence of chitosan with different molecular masses and a block copolymer of ethylene and propylene oxides (Pluronic F-127) is studied. It is shown that, in the presence of the Pluronic,…
This study examined some characteristics of split suede leathers that were treated with a range of Aloe vera concentrations. Following the tanning process of split suede leathers, Aloe vera was applied at five different concentrations (2%, 4%, 6%, 8% and 10%). Leathers treated with Aloe vera took on a yellowish-brown…
Abstract Edwardsite, Cu 3 Cd 2 (SO 4 ) 2 (OH) 6 ·4H 2 O, is a new mineral from the Block 14 Opencut, Broken Hill, New South Wales, Australia. It occurs as druses of tabular and bladed crystals up to 0.06 mm in size, associated with niedermayrite and christelite. Edwardsite is pale blue, transparent with vitreous lustr…
The structural chemistry of the lovozerite group of minerals is considered using concepts of coordination polyhedra, finite automata and local order. A formal language for these lovozerite-type structures is constructed and the concept of a genetic code for this structure family is suggested. Information and structure…
Neutron diffraction with spherical polarization analysis is a powerful tool for studying the multiferroic materials where the ferroelectric polarization arises from a complex magnetic structure. Analyzing the off-diagonal terms in the polarization matrix one may directly detect the chiral contributions even in a multi…
In order to investigate the high-frequency damping properties of the ferromagnetic film for the electromagnetic shielding applications, a series of (FeCo)2x/(Fe)x/(SiO2)1−3x nanogranular films with various volume fractions (x) were fabricated by alternate triple-target magnetron sputtering. The (FeCo)0.50/Fe0.25/(SiO2…
An attempt to prepare high-quality single crystals of NiMnSb is reported. A high-quality polycrystal, used as a starting material of single-crystal growth, was prepared from the stoichiometric nominal composition. Large single crystals were grown using the Bridgman method with a sealed Mo crucible. Annealing under ult…
Abstract The intermetallic compounds CaCo 2 Si 2 and BaCo 2 Ge 2 were prepared by melting mixtures of the elements in an arc‐furnace under argon. Single crystals were obtained by special heat treatment in welded tantalum ampoules. The compounds were investigated by powder and single‐crystal X‐ray diffraction. Both tit…
The formation of nanodimensional InAs crystallites on Si wafers was studied by the method of high-fluence implantation of As and In ions with subsequent high-temperature treatment. It was found that the size and depth distributions of the crystallites depend on both the implantation temperature and the annealing condi…
The paramount economic development of the past half-century has been the information revolution (IR). It has given us the personnel computer, the multi-media cell phone, the Internet, and countless other electronic marvels that continuously influence our lives.. The most powerful technological driver of the IR has bee…
Thermal degradation of composites consisting of polyoxomolybdates of the buckyball structure (with acetate and chloroacetate ligands) and water-soluble nonionic polymers was studied. The mutual stabilizing effect of components of the systems with polyvinyl alcohol and polyvinylpyrrolidone under UV irradiation was subj…
Plasma spheroidization exploits the high temperature and high enthalpy available in the thermal plasma jet to melt irregularly shaped powder particles and quench them to get dense spherical particles. Plasma spheroidization is a versatile process and can be applied to metals, ceramics, alloys and composites to obtain…
In this paper, the kinetic characteristics of high voltage power transformer under short-circuit operation are simulated and the influence of prestress is analyzed for the winding stability. Firstly, the finite element method (FEM) is applied to calculate the leakage magnetic field of transformer and electromagnetic f…
This paper presents a comprehensive review of soft computing applications in the domain of fabrics and clothing. In the last two decades, soft computing techniques, such as artificial neural network, fuzzy logic and genetic algorithm, have been used abundantly for fabrics and clothing modelling, manufacturing, quality…
Under GGA, the structural, electronic, and magnetic properties of Fe(n) nanowire encapsulated in BNNTs have been investigated systematically using the first-principles PAW potential within DFT. We find that the initial shapes (quadratic-prismatic Fe wire and cylindrical (8,8) BNNT) are preserved without any visible ch…
In the present work, we studied the dust deposition characteristics on suspended insulators under the simulated sandstorm conditions in a laboratory. Based on the simulation experiments, the basic dust deposition and distribution characteristics were studied, such as the difference of deposition among sheds at differe…
The migration mechanisms and the corresponding activation energies of Cr-vacancy (Cr-V) clusters and Cr interstitials in $\ensuremath{\alpha}\text{-Fe}$ have been investigated using the dimer and the nudged elastic-band methods. Dimer searches are employed to find the possible transition states of these defects and th…
The effect of preparation procedure on the physicochemical and catalytic properties of CeO 2 was studied. Differences in the electronic and structural characteristics of CeO 2 depending on preparation procedure and treatment temperature were found using X-ray diffraction analysis, transmission electron microscopy, UV-…