Materials Literature
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Structure, microhardness and fracture features of coatings produced by atmospheric electron-beam cladding of amorphous boron were investigated. The coatings were produced by cladding of one, two and three layers of powder. Produced coatings thickness is 550, 750 and 900 μm respectively. The peak level of microhardness…
"Quat-primer" polymers bearing cationic groups were investigated as a surface modifier for Tb-doped cerium phosphate green-emitting fluorescent nanorods (NRs). The NRs were synthesized by a microwave process without using any complex agents or ligands and were characterized with different analytical tools such as X-ra…
There is an increasing interest in the application of photocatalytic properties for disinfection of surfaces, air, and water. Titanium dioxide is widely used as a photocatalyst, and the addition of silver reportedly enhances its bactericidal action. However, the synergy of silver nanoparticles and TiO(2) is not well u…
Abstract Reverse‐micelle‐like CAMs derived from HPEI, which exist as either aggregates or unimolecular micelles, show selectivity upon the encapsulation of water‐soluble and ionic dyes. For rigid dyes, the encapsulating ability is very weak, while for less rigid ones, the encapsulation is dependent on their electronic…
Superfine Ag 2 WO 4 antibacterial powders, which are prepared by supersonic assisted homogeneous precipitation method, is added 1.0-1.5wt.% to sanitary ceramics, having 90% antimicrobial action, and achieve good bactericidal effects. The antibacterial ceramics with Ag 2 WO 4 were soaked into acid and alkali for 3 mont…
Combined in situ spectroscopic ellipsometry and electrochemistry have been employed to monitor, in real-time, the formation of trivalent Cr conversion coatings on polished Al substrates at applied sample potentials. It is found that the formation kinetics and chemical composition of the film can be controlled by adjus…
We demonstrate a quantum Hall effect (QHE) graphene-based infrared photodetector that functions at 70K—a temperature achievable using liquid Nitrogen in vapor evacuation regime. This result opens up the possibility of wider use of QHE photodetectors if graphene is utilized instead of “classical” materials with two-dim…
We report two types of surface plasmon (SP) modes guided by a Ga-doped ZnO (ZnO:Ga) layer bounded between air and glass. A symmetric SP (s-) mode having leaky waves was found at an air-ZnO interface by attenuated total reflection measurements and showed a cutoff thickness region from 141 to 107 nm. Consequently, only…
In this study, it was intended to study the useability of miscanthus, an energy plant in the production of concrete as a plant fiber in the city of Konya which is an agricultural city. It was thought that the concrete that is used in the production of structural elements can be strengthened and produced lighter by the…
Some full-Heusler alloys, such as Co(2)MnSi and Co(2)MnGe, are expected to be half-metallic ferromagnetic material, which has complete spin polarization. They are the most promising materials for realizing half-metallicity at room temperature owing to their high Curie temperature. We demonstrate a huge tunnel magnetor…
A facile strategy to perform the boron coordination reaction on a template of nanofibers is developed. Peptides with phenylboronic acid tails (peptidyl boronic acids) are designed and prepared as building blocks that can self-assemble into nanofibers. After the addition of vicinal diol structural motifs to the self-as…
Nanoassemblies formed by host/guest interactions between two polymers in aqueous media are studied. Two types of polymers with the same dextran backbone are modified with adamantyl or βCD groups. The sizes of the spontaneously formed nanoassemblies depend on the βCD:Ada ratio and on the total concentration and composi…
AIMS: Nanomagnets with metal cores have recently been shown to be promising candidates for magnetic drug delivery due to higher magnetic moments compared with commonly used metal oxides. Successful application strongly relies on a safe implementation that goes along with detailed knowledge of interactions and effects…
Diatoms are good indicators of water quality in lotic systems. The purpose of this study was to provide information about the effects of natural and artificial substrates on diatom-based water quality assessment. Two artificial substrates (bricks and glass) were placed at 6 sampling sites and left for a month during s…
Abstract Ferroelastic (90°) domain wall motion occurs readily in bulk samples of displacive ferroelectrics such as Pb(Zr,Ti)O 3 (PZT), dictating critical piezoelectric, dielectric, and polarization switching properties. Many prior studies have used converse piezoelectric measurements to probe the dynamics of ferroelas…
We study the effect of twist on the electronic structure of H-terminated armchair graphene nanoribbons, for both relaxed and unrelaxed unit cell size. We investigate the band gap change as a function of the twist angle for different ribbon widths. In the case of unrelaxed unit cell size, the band gap closes for smalle…
In the donor–bridge–acceptor [NH 2 –graphene quantum dot (GQD)–NO 2 ] system, we found that, for GQDs with the same number of carbon atoms, changing the shape of the GQDs not only effectively enhances the first hyperpolarizability (β 0 ) but also changes the spin multiplicity of the systems, which is useful to designi…
The magnesium slag is discarded from production of magnesium metal from dolomite. However the magnesium slag is slaked in some factories by means of sprinkling water to prevent from dust pollution. The possibility of slaked magnesium slag (SMS) to play a role of mineral admixture for concrete was investigated by exper…
The research on ceramic matrix composites and their applications in aerospace field were discussed in terms of their advantages and features, fabrication methods, domestic and foreign research progress, difficulties and key technologies to be solved, and future development trends and directions.
Abstract Guanidimium‐4,4‐azo‐1‐hydro‐1,2,4‐triazol‐5‐one (GZTO·H 2 O) was synthesized from 4‐amino‐1,2,4‐triazol‐5‐one as a starting material by two‐step including oxidation coupling using acid KMnO 4 and reaction with (NH 2 ) 2 CNH·HNO 3 (GN) in KOH solution. The single crystal of the title compound was obtained by…