Materials Literature
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The three phase transitions at T 1, T 2 and T 3 in CsZnPO 4 crystal have been studied using an X-ray diffraction technique with both bulk and powder crystals. It is found in bulk crystals that all the three phase transitions take place and that two high temperature phase transitions at T 1 and T 2 are fast, while the…
Contrary to the conclusions based on isotropic elasticity, anisotropic elasticity theory predicts that a screw dislocation in the b.c.c. lattice dissociated symmetrically into three 1/6 [111] partial dislocations on {110} planes is stable or metastable. A symmetric dissociation on {112} planes is unstable. For the hig…
The decomposition performance of p-chlorophenol in aqueous solution by combination of ultrasound and ultraviolet light was examined. The decomposition of p-chlorophenol in aqueous solution was a pseudo-first-order reaction. The decomposition rate constant increased with increasing ultrasonic intensity and became lower…
The composition of nitrogen-doped hydrogenated amorphous carbon (a-C : H : N) films grown in a magnetically confined rf plasma-enhanced chemical vapour deposition system has been determined by X-ray photoelectron spectroscopy (XPS) and compared with that determined using a combination of elastic recoil detection analy…
Electrochemical capacitors have been devised using hybrid electrolytes containing either lithium or magnesium salt and high-density graphite (HDG) electrodes. The cells exhibit single-electrode discharge capacitance of 355 μF/cm 2 at 1 mA/cm 2 discharge rate for magnesium-containing ormolytes at 80°C. Typical response…
Issues associated with the development of an alkali metal thermal‐to‐electric conversion (AMTEC) converter model that serves as an effective design tool were investigated. The requirements and performance prediction equations for the model were evaluated, and a modeling methodology was established. It was determined b…
Method of modification of highly oriented pyrolytic graphite (HOPG) is proposed for deposition of biological objects especially DNA for scanning probe microscopy. Atomic force microscopy (AFM) images of DNA on HOPG are compared with those on conventional support — mica. The advantages of HOPG as a substrate for DNA fo…
A kinetic model for NOx production has been developed to predict NOx emissions. The reaction scheme is a modified super-extended Zel’dovich mechanism (SEZM), which includes 43 reactions and 20 species instead of just the three reactions typically used in the extended Zel’dovich mechanism. The NOx emissions predicted b…
The following topics were dealt with: GIS; photonics; insulation diagnosis of GIS and cables; electronics; environmental issues; new measurements and evaluation methods; partial discharge; space charge measurements; treeing; space charge application; aging and lifetime estimation; conduction and breakdown in solids; a…
Плавление графита и жидкий углерод (О статье в УФН Э.И. Асиновского, А.В. Кириллина и А.В. Костановского "Эксперименетальное исследование термических свойста углерода при высоких температурах и умеренных давлениях"), Савватимский А.И.
The microstructure of chafer cuticle was observed by scanning electron microscope. It was found that chafer cuticle is a kind of chitin fiber-reinforced laminate-composite with sclerotized protein matrix. The fiber-reinforced plies parallel the surface of the cuticle. There is a series of peculiar microstructures incl…
Melt Growth Composite material (MGC) consists of multiple single crystal with fine entangled in three dimensional network structures. The MGCs are thermally stable and have higher creep resistance. Furthermore, the flexural strength at room temperature can be maintained almost up to the melting point. In this study, i…
This paper describes the principle of flow-levitation method. An analytical mode l for preparation of nanometal powders in inert gases is presented. Associated w ith the relation between dynamics of gas flow and temperature, the process of th ermal diffusion, nucleation, condensation and crystallization of powders is…
The synthesis, solution and solid state characterization, and the electrochemical behaviour of [RuCl(dmso-O)4(NO)][OTf]2 (2) and [Ru(dmso-O)5(NO)][OTf]3 (3), the first examples of Ru complexes having more than three O-bonded dmso ligands, are described.
Dislocation glide in a metal matrix with spherical precipitates has been simulated on a computer. The critical resolved shear stress (CRSS) p is derived, and the superposition of two strengthening effects is investigated. Firstly, the precipitates are incoherent; they cannot therefore be sheared but are overcome by th…
We have rigorously calculated for the first time all the inter-electrode and pixel capacitances of Thin-Film Transistor Liquid Crystal Displays using the electrical energy distribution inside a liquid crystal cell. The energy distribution is obtained from the three-dimensional profiles of potential distribution and mo…
In flexible pipes, the steel wires in the annular space can sometimes be in contact with a corrosive environment containing condensed water or seawater and acid gases (CO2 and H2S), coming from the bore by permeation through internal polymer sheaths. In order to choose the most suitable steel wires to avoid hydrogen e…
The thermodynamics of dimerization of zinc(II) tetra-4-carboxyphthalocyanine in aqueous solutions and its solvation interactions with electron-donating pyridine molecules were studied by calorimetry.
Experiments were carried out to investigate the effect of composition, heat-treatment and nitrogenation conditions on the magnetic properties of Sm-Fe-Co-Ti-N compounds with TbCu7-type structure. The optimum preparation conditions of the compounds were as follows: composition: {Sm10(Fe0.95CO0.05)89.7Ti0.3}82.0N18.0, r…
It was shown that the temperature in the range 20 ? 65 ?C has considerable effects on the electrochemical anodic dissolution of chromium in the active potential range as well as on the electrochemical hydrogen evolution reactions on bare and oxide covered chromium surfaces. Also, the chemical dissolution of chromium i…