Materials Literature
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Capacitance and gravimetric measurements are used to study the diffusion of water into high temperature vulcanized (HTV) silicone rubber. Silicone rubber with different Alumina Tri-hydrate (ATH) filler contents was used in this research, and deviations from the classical Fickian diffusion were observed. A model is pre…
A liquid crystal network whose chromophores are functionalized by photochromic dye exhibits light-induced mechanical behaviour. As a result, the micro-scaled thermotropic traits of the network and the macroscopic phase behaviour are both influenced as light alternates the shape of the dyes. In this paper, we present a…
The leather industry (tanneries) generates high amounts of toxic wastes, including solid and liquid effluents that are rich in organic matter and mineral content. Vermicomposting was studied as an alternative method of treating the wastes from tanneries. Vermicompost was produced from the following tannery residues: t…
Processes of e-beam and holographic recording of surface-relief structures using Ge5As37S58–Se multilayer nanostructures as registering media were studied in this paper. Optical properties of Ge5As37S58, Se layers and Ge5As37S58–Se multilayer nanostructures were investigated. Spectral dependencies of refractive index…
We have investigated the attachment of azobenzene photochromic switches on the modified surface of cadmium sulfide (CdS) quantum dots (QDs). The modification of CdS QDs is done by varying the concentration of the capping agent (mercaptoacetic acid) and NH 3 in order to control the size of the QDs. The X-ray diffractio…
Silver nanowires (Ag NWs) have been attracted much attention in recent years .view of the extensive its use in various fields. Ag NWs were successfully prepared by two steps firstly electrochemical method and heating secondly silver nanoparticles colloidal solution at different temperature. The optical results show th…
The phase separation of a thin film of the binary composite of Ni and C60 has been studied using laser illumination of the sample through an array of pinholes (with a diameter of 10-µm and 60-µm × 80-µm spacing). The mesh with pinholes enabled splitting of the probing beam into an array of close-spaced laser micro-bea…
Fractal i 0w(1b) (in author’s notation) of five-pointed stars is considered. The initiator of the fractal is a five-pointed star. When building the fractal, the prefractals of previous step are situated so as their centers coincide with the vertices of a five-pointed star. This star is called a “generalized star.” The…
A light weight and heat-resistant composite material was successfully fabricated by impregnation-filtration process in which Al2O3-SiO2 fiber mat was used as the skeleton and silica was applied as reinforcing filler. The effects of both concentration of silica sol and sintering temperature on SiO2/Al2O3-SiO2 fiber com…
A Chalconyl homologous series: RO-C6H4-CH=CH-CO-C6H4-OC14H29(n) (meta) is synthesized and studied with a view to understand and establish the effect of molecular structure on Liquid crystal behaviour by reducing molecular rigidity through diminishing of a phenyl ring and a central carboxy or vinyl carboxy group from a…
A heat-resistant phosphate adhesive was developed for joining and repairing of C/C composites. The high-temperature bonding effect for both cured adhesive and 1300°C-calcined adhesive had been evaluated through testing high-temperature shear strength of corresponding joints. The results showed that the bonding strengt…
The present paper is devoted to the influence of the support surface roughness on adhesion of a film-support system (a stainless steel (St3) support + a copper film). The film was deposited using a magnetron. The film was 7 μm thick. Prior to coating with the copper film the sample surface was treated with Low-Energry…
Ho 3+ -doped bismuth(III) fluoride was suggested for upconversion of 2-μm laser radiation (1.9–2.1 µm) into visible emission. The process is possible owing to direct excitation of the 5 I 7 level, followed by the excitation of the 5 F 5 level with the emission threshold of 1.4 W.
Submicron thin layers of BaZr x Ti1–x O3 are grown in-situ by RF magnetron sputtering of a ceramic target (x = 0.50) on a substrate of Pt/r-cut leucosapphire Al2O3. It is shown that the composition of the ferroelectric layer is not identical to the composition of the sputtered target and is shifted toward barium zirco…
The [Fe(acen)pic 2 ]BPh 4 · n H 2 O compound has been synthesized and studied in the temperature interval of 5–300 K by the methods of EPR and magnetic susceptibility. The existence of ferromagnetic interactions between Fe(III) complexes in this compound has been revealed, in contrast to unhydrated [Fe(acen)pic 2 ]BPh…
The migration of wall material or seeding impurities plays an important role in the formation of mixed materials, the impurity contamination of the plasma and tritium retention. First, this work presents an improved model for the sputtering from mixed material surfaces in WallDYN. Second, we present dynamic SDTrimSP a…
We study the contribution of surface strain gradient elasticity to the anti-plane deformations of an elastically isotropic bimaterial containing a mode~III interface crack. The surface strain gradient elasticity is incorporated using an enriched version of the continuum-based surface/interface model of Gurtin and Murd…
A novel electrochromo-supercapacitor based on a stable hybrid transparent conductive electrode is demonstrated by Pooi See Lee and co-workers in article number 1501882. The bifunctional device performs as a regular energy storage device and simultaneously monitors the level of stored energy with a rapid and reversible…
By inkjet-printing silver-nanoparticle ink into a liquid substrate, Y. Song and co-workers fabricate conductive microcables that are embedded in a transparent film, in work described on page 1420. By controlling the spreading of the ink droplet and the rheological properties of the liquid substrate, transparent multil…
Abstract 1, 1, 3, 3, 5, 5‐Hexavinyl‐1, 3, 5‐trisilacylohexane [Si(CH=CH2)2CH2]3 was synthesized and hydrosilylated with trichlorosilane to afford the first generation of a dendrimer. Conversion of this molecule with 18 Si–Cl functions on its surface with an excess of vinylmagnesium bromide yielded the 18‐fold vinylate…