Materials Literature
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The effect of uniform pressure on the activation parameters of the kinetic equation that describes the exponential dependence of the steady-state creep rate and the lifetime of polycrystalline metals on stress and temperature is estimated. It is shown that, under pressure, the parameters that determine the behavior of…
The recent renewed interest in diffraction gratings as mirrors for vertical-cavity surface-emitting lasers (VCSELs) stimulated the development of fast and accurate full-wave simulators. In fact, their modeling requires large sets of scattering analyses, which can be effectively carried out by means of mode-matching te…
Effect of electro migration on crystal structures of platinum nanowire (Nano bridge) during Nano-gap formation is investigated by means of Transmission Electron Microscopy (TEM). Selected area diffraction patterns as well as bright field images are used for this investigation. There were severely recessions in the pol…
Comparative Study on The Photocatalytic Hydrogen Production from Methanol over Cu-, Pd-, Co-and Au-Loaded TiO 2 tude comparative de production d'hydrogne par photocatalyse partir de mthanol et l'aide de diffrentes phases actives (Cu, Pd, Co et Au) supportes sur TiO 2
The paper is devoted to the experimental study of the spectral characteristics of matrix anisotropic structures formed by different type of metamaterial. During the analysis of the spectrum of the structures under investigation the manifestation of spatial anisotropy for different orientations of the wave vector k in…
One of the major problems in wood gypsum particleboard production, faster hydration and thus reducing its physical and mechanical properties. In order to increase the curing time of gypsum, was used from flour glue in wood gypsum particleboard production by using of canola wastes and poplar particles wood. To assess t…
Devising ultrafast light-absorbing materials that are photoconductive yet resistive, have high field breakdown limits, and which can operate near 1550 nm is challenging. Their emergent needs are foreseen for photoconductive terahertz antennas, picosecond detectors, and optoelectronic switches with regard to innovative…
A combined and controlled approach called edge-cutting transfer (E-CT) is used on page 4140 by Y. Mei, Z. Di, and co-workers to precisely generate spatially aligned Si/Ge nanoribbons with a designed geometry. The suspended nanoribbons are formed by the selective etching of a buried oxide layer, then a slab of cured PD…
Abstract A bend‐oriented liquid crystal phase grating was presented in this paper. The diffraction efficiency and the response time were studied and compared to the same parameters in parallel‐oriented liquid crystals phase grating. The result showed that the bend‐oriented liquid crystal phase grating behaves a higher…
Abstract Review: 220 refs.
We have investigated the structural and magnetic phase transitions in EuTi1-xNbxO3 (0 ≤ x ≤ 0.3) with synchrotron powder X-ray diffraction (XRD), resonant ultrasound spectroscopy (RUS), and magnetization measurements. The Pm-3m ↔ I4/mcm structural transition in pure and doped compounds is marked by a pronounced step-l…
The cover picture shows the suitability of the solvent-free method to achieve a variety of 3D coordination polymers through reaction between lanthanide nitrates and pyrazine-2,5-dicarboxylic acid. This synthetic approach, which consists of the acid–base reaction of the solid reactants through their grinding and subseq…
In the present paper we focus on the study of polarization properties of biaxial metamaterial, located on an ideally conducted metal substrate. The system is placed into an external magnetic field. Effective linear-to-elliptic polarization conversion has been shown, by means of physical and geometrical parameters of t…
The tunneling current between two crossed graphene ribbons is described invoking the empirical pseudopotential approximation and the Bardeen transfer Hamiltonian method. Results indicate that the density of states is the most important factor determining the tunneling current between small (~nm) ribbons. The quasi-one…
Abstract K 2 SiF 6 :Mn 4+ is a promising red phosphor for the use in LEDs for general lighting and displays. Its narrow red emission and excellent thermal stability make it suitable for improved color rendering. The long millisecond‐range decay and saturation at high excitation power can be overcome by using a remote…
Investigation of the plasmonic resonances in aggregates of metal nanowires is presented. Mechanism of plasmonic mode coupling in a system of metal wires that can be considered as hybridization combinations of isolated wire plasmons is investigated.
Periodic structures are widely used in different areas of science and technology, forming the grounds for various types of devices [1]. In the microwave range diffraction gratings are used as polarizers, frequency-selective surfaces, quasi-optical beam splitters, protective masking materials that are transparent to el…
The use of two different materials as electrodes allows\nthe construction of asymmetric and hybrid capacitors\ncells with enhanced energy and power density. This\napproach is especially well-suited for overcoming the\nlimitations of pseudocapacitive materials that provide\na huge capacitance boost, but in a limited po…
The inverse problem of determining a region in which the velocities of magnetic particles or biological cells modified by these particles (microaggregates) vanish has been formulated and solved. The zerovelocity isolines have been determined for three variants of arrangement of a permanent magnet. A solution of the in…
The images on the inside back cover refer to the article by Dawei Xing et al. (pp. 1905–1910). They show the critical behavior for melt-extracted Gd-based microwires. The authors investigated Gd60Co15Al25 wires with an average diameter of 40 μm that underwent a second-order paramagnetic to ferromagnetic (PM–FM) transi…