Materials Literature
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This paper presents and discusses the results of the instrumented indentation test of the samples of the system Bix(As2S3)100-x, x = 1.5, 3, 5, and 7 at.%. Measurements of mechanical parameters were performed using a Fischerscope HM2000 S nanoindentation device. The experimental data obtained by measuring the microhar…
Electrochromism is changing color of a substance in response to the applied an external electric field and the phenomenon is reversible. WO 3 is very attractive material due to its electrochromic properties as well as it is also attractive for many different applications such as gas sensors, phosphorous screen, textil…
The dependences of spontaneous polarizations P sp of solid solutions of aluminum, gallium, and indium nitrides on the compositions were estimated using the Harrison bond-orbital method. A simple formula was proposed to estimate P sp using only lengths of the interatomic bonds between the nearest neighbor atoms and the…
A composite coating was formed on MA8, MA14, and MA12 magnesium alloys by plasma electrolytic oxidation with subsequent immersion of samples into a superdispersed polytetrafluoroethylene suspension. In vitro volumetry determined that using this coating significantly reduces the magnesium alloy dissolution rate. It was…
A series mathematical model has been developed for the prediction of flow stress and microstructure evolution during the hot deformation of metals such as copper or austenitic steels with low stacking fault energies, involving features of both diffusional flow and dislocation motion. As the strain rate increases, mult…
The peculiarities of solid-phase synthesis are studied experimentally and numerically in the aluminum-fluoroplastic and aluminum-sulfur mixtures in cylindrical ampoules under explosive loading. The experimental results show that the use of a mixture capable of ultrafast exothermic reactions leads to the destruction of…
The phosphor Dy3+ doped M type gadolinium orthotantalate GdTaO4 was prepared successfully by traditional solid state reaction and the photoluminescence of GdTaO4: xDy3+ (0.01 ≤ x ≤ 0.10) has been investigated under ultraviolet and vacuum ultraviolet excitation. In the excitation spectra of GdTaO4: Dy3+, the overlap ap…
This research is relevant, because the bulk of the mined amber comes in amber chips. Therefore, we have decided to review the current ways of melting amber chips to develop the most technologically efficient algorithm and to use it further for producing decorative items. The purpose of the work is to perfect the techn…
The new engineering technique for the experimental investigation of physical and mechanical characteristics of thermal protective intumescent coatings is offered. A mathematical model is proposed for predicting the thermal behavior of structures protected by coatings; the model is closed by the studied material charac…
Se evalu la interaccin de un biomaterial polimrico con medio de cultivo y clulas osteoblsticas, electrodepositado sobre Ti6Al4V. El compuesto est integrado por cido polilctico-cido poligliclicohidroxiapatita, modificado con quitosano y colgeno. Se calcul la permitividad relativa con los datos de impedancia plasmada en…
For the fabrication of low-temperature solution-processed metal-oxide thin-film transistors (TFTs), alternative annealing processes have recently been studied for reduced fabrication cost and applications to flexible devices. Indium nitrate solution has been proposed as a precursor for the low-temperature solution-pro…
The paper discusses preparation and luminescent properties of Sr5SiO4Cl6:Eu2+ blue phosphor, which was synthesized by sol-gel method. The emission and excitation spectra, SEM, XRD and diffuse reflection of the fluorescent powder were measured. It was shown that the samples were single phase of Sr5SiO4Cl6 by the XRD pa…
The article presents the results of the analysis of the elemental and phase composition, defect substructures. It demonstrates strength and tribological characteristics of the aluminium-silicon alloy of the hypereutectic composition in the cast state and after irradiation with a high-intensity pulsed electron beam of…
A novel magnetic-assisted noncontact triboelectric nanogenerator (TENG) is proposed by J. H. Hao and co-workers on page 2744. By combining a magnetic-responsive layer, the TENG is remotely operated and controlled with noncontact mechanical motions that can be converted into electricity and light emissions. This work h…
Introduction Evidence on longitudinal associations between smoking and frailty is scarce. The objective of this study was to systematically review the literature on smoking as a predictor of frailty changes among community-dwelling middle-aged and older population. Methods A systematic search was performed using three…
Fibers and fibrous structures are used extensively in various fields due to their many advantages. Microfibers, as well as nanofibers, are considered to be some of the most valuable forms of advanced materials. Accordingly, various methods for fabricating microfibers have been developed. Electrospinning is a useful fa…
Abstract By micromagnetic simulation, we investigated the effect of the Dzyaloshinskii–Moriya interaction (DMI) on the static and dynamic characteristics of a 360° domain wall. Simulation results show that both the energy and the size of a 360° domain wall decrease with the increase of DMI intensity. In the presence o…
Electronic and emission properties of photocathodes fabricated on the basis of multilayered structures of oxidized Gd atoms deposited on the Si(100) surface and additionally covered with fresh layers of Gd atoms have been studied as functions of the structure holding time under vacuum, by using the methods of photoele…
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On page 2511, X.-F. Yu, P. K. Chu, and co-workers demonstrate the successful fabrication of millimeter-scale three-dimensional superlattice arrays consisting of dense, regular, and vertically aligned gold nanorods by the evaporative self-assembly method. The excellent performance in surface-enhanced Raman scattering i…