Materials Literature
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When someone plays sports, whether a professional athlete or just a sports lover, is desirable feel comfortable, especially with apparel. This comfort is related to sweat that evaporates or that stay retained in fabric, which has influence body’s thermoregulation and in keeping the fabric dry even during the exercises…
Polyester/polyurethane open cell foam is examined for oil field water treatment. The oil droplet adsorption is influenced by foam-droplet bonding due to surface chemical interactions. Of the possible adsorption, acid-base, electrostatic (ES), and hydrophobicity interactions are among the most important. To determine t…
The laser transmission welding is one possibility to join parts, which have been produced in the special injection moulding process structural foam-moulding. Besides reduced weight such parts with reduced density show a reduced cycle time as well as improved size accuracy. Up to now there are no empirical values regar…
The temperature dependence of the critical stresses and transformation strain upon cooling/heating under a constant tensile stress in the temperature range T = 77–573 K are studied on single crystals of Fe–28% Ni–17% Co–11.5% Al–2.5% (Ti+Nb) (at %) alloy oriented along the [001]-direction under tensile deformation. It…
Corrosion resistant films were prepared on flame-resistant Mg–6Al–1Zn–2Ca (in mass%) alloy by steam coating using ultra pure water as steam source. The prepared films were characterized using SEM, XRD, and FT-IR. Corrosion resistance of the film was estimated by polarization curve measurement in 5 mass% NaCl aqueous s…
Particle transport processes of impurity ions in a multi-ion-species plasma in the Large Helical Device are investigated by neoclassical transport simulations. While the quasi-linear gyrokinetic analyses indicate that the anomalous contribution of the impurity particle transport is radially inward-directed, it is foun…
Synchrotron X-ray radiography was used to study tensile and compressive deformations of semi solid Al-Cu and/or Fe-C alloys. In the case of tensile deformation of globular Al-Cu sample at ~60% solid, relatively high strain regions were formed even at mean strain of 0.005. The normal strain rate at the regions was 10 t…
Many studies reported that a pulsed magnetic force acting on the bending area can significantly reduce and even eliminate the springback. However, a detailed mechanistic understanding of springback correction has not been reported. In this study, a finite-element model of electromagnetic impulse calibration was establ…
A small number of key-residues in a protein sequence play vital roles in the function, stability, and folding of the protein. The nonuniform conformational disorder of a small protein Chymotrypsin Inhibitor 2 (CI2) and its secondary segments has been quantified in the ethanol governed temperature induced unfolding pro…
N-type microcrystalline silicon carbide (µc-SiC:H(n)) is a promising material for the doped layer on the illuminated side of silicon heterojunction (SHJ) solar cells, because it offers a combination of large bandgap for high optical transparency and suitable refractive index for low reflection. Moreover, both optical…
The paper discusses the importance of building reconstruction and the need for improving the available formwork systems used for strengthening of structural elements during reconstruction. Citing the results of the analysis of the Russian and foreign scientific publications, the authors emphasize the necessity of repl…
Spark plasma sintering (SPS) is an extremely fast solidification technique for compounds that are difficult to sinter within the material group metals, ceramics, or composites thereof, SPS uses a uniaxial pressure and a very rapid heating cycle to consolidate these materials. With SPS the main benefit is the ability t…
Aluminium bronzes are used for their combination of high strength, excellent corrosion and wear resistance.This paper presents the research of heat treatment parameters of two different chemical compositions of aluminium bronze (Cu-Al-Fe-Ni alloy) on microstructure and mechanical properties.The heat treatment employed…
Abstract not provided.
Differential equations are derived for localized bulk and surface plasmons in metal nanostructures in the random phase approximation (RPA) at the high frequency condition. A differential equation for the scalar potential in the RPA gives a position-dependent Drude-like dielectric function. Using the dielectric functio…
Samples of 316L austenitic stainless steel with bimodal grain size distributions are elaborated using two distinct routes. The first one is based on powder metallurgy using spark plasma sintering of two powders with different particle sizes. The second route applies the reverse-annealing method: it consists in inducin…
We report the synthesis of (Zn2+Ti4+) substituted hexagonal ferrites, BaZn2(Zn0.5Ti0.5)xFe16-xO27 (W-type) and Ba2Zn2(Zn0.5Ti0.5)xFe12-xO22 (Y-type), and the relationship between their composition and magnetic properties. Substituted W-type ferrite was synthesized in the region of 0.0 ≤ x ≤ 1.5. A decrease in the Curi…
Thermal treatments are commonly applied for modifying surfaces in order to improve their functional behavior through obtaining specific microstructures introducing external elements into alloys or developing coatings, which provide improvements in the surface integrity of the treated samples. Thermal laser treatments…
The work concerns the estimation of the uncertainty of the number of defects calculated using the NRT model. The impact of spread of nuclear stopping power, electronic stopping power, and threshold displacement energy was examined. The results were obtained for aluminum, iron, zirconium, and tungsten.
SrB4O7 (SBO) shows superior transparency in the vacuum ultraviolet (UV) region, a high radiation damage threshold, and high nonlinearity, and SBO crystals have therefore attracted great interest as materials for low-cost, high-power UV light sources. To use SBO crystals as laser sources, it is essential to grow transp…