Materials Literature
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The conditions of formation of local states in the energy spectra of semi-infinite carbon nanotubes with regularly arranged atoms adsorbed on the outer surface are studied in the π-electron approximation. The influence of the adsorption type (physical and chemical), the donor-acceptor properties of adsorbed atoms, the…
MnAs grows either with the (1100)prism-plane on GaAs(001), (113)A and (110) or the (0001) c-plane on GaAs(111)B substrates. The strain state of the films determines the phase coexistence of ferromagnetic α- and paramagnetic (3-MnAs and their distribution in self-organized structures. The mismatch accommodation mechani…
This study describes facile methods based on sol-gel processing for the formation of robust thin films that incorporate phospholipid bilayer membranes and transmembrane proteins as multilamellar assemblies in cross-linked silica matrices. Transmission electron microscopy and x-ray diffraction were used to examine the…
Abstract In this paper, the influence of nanosilica particles on hysteresis and stress induced crystallization of natural rubber compounds is described. For this purpose a newly developed uniaxial stretching system that monitors birefringence, true stress and true strain was used in real time while stretching and retr…
Mixed-ligand binuclear and mononuclear europium carboxylate complexes with nitrogen-and phosphorus-containing neutral ligands have been studied by luminescence and X-ray photoelectron spectroscopy. The coordination of neutral ligands through the nitrogen donor atom leads to an increase in electron density at the Eu 3+…
This study aims to develop a realistic mathematical model of fabric. In contrast to other studies on fabric modeling as a deformable surface, the model described in this article takes into account the geometry of the object. Moreover, it integrates the nonlinear phenomena of the dynamic behavior of material. As input…
Abstract Chemical reactions in the vapor phase during metalorganic vapor phase epitaxy growth of ZnO are investigated with in‐situ monitoring using Fourier transform infrared spectroscopy. Diethylzin (DEZn) and nitrous oxide (N 2 O) were used for zinc and oxygen source, respectively. DEZn reacts first with oxygen atom…
The anisotropy of dendritic structure is characterized in this paper. The direction of move of liquid/solid interface influence the velocity of the melt flow. In the course of the experiments the liquid/solid interface was moved in three different directions: i) at right angles to the direction of gravity vector, ii)…
Die Materialbeanspruchungsanalyse nach Nierlich mittels Röntgenbeugung stellt ein wichtiges physikalisches Untersuchungsverfahren zur Bewertung der Werkstoffanstrengung und Lebensdauerabschätzung von Wälzlagern und anderen hoch beanspruchten Maschinenelementen dar. Die Methode wird vorgestellt und zur Auswertung von A…
Abstract On a microscopic scale, deformation twinning is carried by the motion of twinning disconnections. A disconnection is an interfacial line defect characterized by a Burgers vector, a line vector, and a step vector. The Burgers vector (dislocation component of the disconnection) carries the deformation while the…
Abstract Well-shaped, small single crystals of the NdNiO 3 perovskite were grown under high oxygen pressure conditions in a belt-type press at 4 GPa. The reaction took place in sealed platinum capsules in the presence of KClO 3 as oxidizing agent. It seems that the choice of hydroxides of the involved cations as precu…
The structure of single crystals grown by the Czochralski technique from (Na 0.500 La 0.495 − x Ce x Er 0.005 )MoO 4 ( x = 0.10, 0.125, 0.15, 0.175, 0.20) melts in a weakly oxidizing atmosphere (99–99.5% N 2 + 0.5–1% O 2 ) (NLM-0) was studied by x-ray diffraction. Some of the crystals received short-term annealing at…
Elastic diffuse neutron scattering of an Fe-21.9 at.% Al single crystal was measured at 878, 966 and 1073 K. The separated short-range order scattering revealed the building elements of the B2 structure as the characteristic local atomic arrangement for all states investigated. Effective pair interaction parameters, o…
A gliding of the director at the interface between a nematic liquid crystal and a solid medium is generally observed at many interfaces giving weak or moderately strong anchoring. This phenomenon is characterized by strongly non‐linear dynamics and very long relaxation times (hours–days). The gliding of the director h…
Fullerene plasmas and beams have been produced in our electron cyclotron resonance ion sources (ECRIS) originally designed for other purposes. The ATOMKI-ECRIS is a traditional ion source with solenoid mirror coils to generate highly charged ions. The variable frequencies NIRS-KEI-1 and NIRS-KEI-2 are ECR ion sources…
The microhardness and structure of composite chromium coatings modified by dispersed CeO 2 and ultradispersed diamond ( UDD ), as well as the granulometric UDD distribution (both in the coatings and the bath) were investigated. The presence of the particles in the coatings reduced the number of microcracks and enhance…
Abstract A composite right/left‐handed (CRLH) extended equivalent circuit (EEC) FDTD method with a stability criterion based on a Liapunov discrete energy function is presented and applied to investigate several transient and refractive phenomena occurring at the interface between a CRLH metamaterial (MTM) and a purel…
The aim of the present study was to evaluate the corrosion resistance of weldments produced by the Indirect Electric Arc technique. The material studied was API grade X-65 steel, which was corroded in NACE solution saturated with H2S. Three different temperatures were employed, room temperature (25°C), 37°C and 50°C.…
Composites based on various polymers and rubber particles as a filler were studied. As the filler concentration was increased, the transition from necking to brittle fracture and then to uniform ductile yielding was observed. The criterion for the brittle-ductile transition, which is accompanied by an increase in the…
The synthesis, solid-state and solution structure of a magnesium amine bis(phenolate) complex [Mg{(O-2,4-t Bu2 C6 H2 -6-CH2 N(Me)CH2 }2 (C6 H5 CH3 )1.5 ]2 4-Mg is reported. The complex was prepared by combining MgBu2 with an equimolar amount of the p