Materials Literature
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This study investigates the fabrication of a stable superhydrophobic surface with low contact angle (CA) hysteresis using ZnO thin films prepared by cathodic electrodeposition and subsequent gaseous oxidation. The deposition time is a crucial factor in nanostructuring and producing surface roughness of the films. Cath…
Ti-Zr binary metallic wires without toxic elements were developed by an arc-melt-type melt-extraction method for potential application as biomedical materials. The Ti-Zr binary alloy showed high wire forming capability during the melt-extraction process, independent of the Ti concentration. Therefore, it was possible…
Polyelectrolytes exhibit an enhanced solubility (compared to their uncharged counterparts) due to the dissociation of counterions into the polar medium. Polyelectrolyte solutions can nevertheless become unstable, and display microphase and macrophase separation if the solvent is bad for the polyelectrolyte backbone. I…
The influence of some arylazo indole derivatives on the corrosion rate of 70/30 -brass in 2 mol l -1 HNO 3 was investigated using weight loss and galvanostatic polarization techniques. It was found that the investigated compounds behave as inhibitors. The inhibition efficiency increases with increasing the inhibitor c…
The present work describes the anodic growth of self-organized TiO2 nanotubes (TiNT) on titanium samples in an electrolyte containing 3% NH4F and 5% H2O in glycerol. Two stages anodization were proceeded. Initially, the potential was ramped from 0V to 30, 40 and 60 V. In the second stage the potential was held at the…
The effects of zinc insert and Al content in Mg alloy on the bondability in steel/Mg alloy joints were evaluated using SEM, EDX, XRD and tensile test. A cold rolled steel plate (SPCC), a zinc coated steel (GI), Mg-3mass% Al alloy (AZ31) and Mg-6mass% Al alloy (AZ61) were used in this study. The bondability of the join…
Three competing defect configurations of Li-doping of MgO on the (100), (110) and (111) low index surfaces have been investigated using GGA + U. The three configurations investigated on each of the surfaces were: substitution of Li for Mg with the formation of a compensating oxygen hole state ([Li'Mg—O•O]), substituti…
Several ecological and morphological groups of benthic organisms, and also allochthonous algae incoming from plankton and periphyton, were found in microphytobenthos. Ecological characteristics of algae occurring in benthic algae communities are considered.
The effects of applied pressure, pouring and die temperatures on the macrostructure of a squeeze-cast Mg-2.5 mass%Nd alloy were investigated. The grain size of the Mg-2.5 mass%Nd alloy increased with increasing applied pressure from 60 to 180 MPa when the pouring and die temperatures were 725°C and 330°C. This was att…
We investigate the behaviour of randomly cross-linked (co)polymer blends using a combination of replica theory and large-scale molecular dynamics simulations. In particular, we derive the analogue of the random phase approximation for systems with quenched disorder and show how the required correlation functions can b…
Abstract As a consequence of evolutionary pressure, various organisms have developed structural fibers displaying a range of exceptional mechanical properties adapted specifically to their functions. An understanding of these properties at the molecular level requires a detailed description of local structure, orienta…
650rddJbeCdJr5720U4 Keywordsdirectedself-aSSemblyblockcopolymersreSOlutionenhancementSelf-healingSCalability 1Introduction Pattemlng fbatures with smaller critical dimensions(CDs)allows denser circuitry to be Created and reduces overallper bit production costSemiconductor devices need to be scaled approximately to 70l…
The surface of CdSe nanoparticles was functionalized with 11-hydroxyundecanoic acid (11-HUDA) during in situ preparation to afford stable and highly luminescent quantum dot (QD) solutions. The reactivity of the hydroxyl groups of 11-HUDA was then utilized in carbamate bond forming reactions with diisocyanate-bearing m…
Laser-electrospinning is a melt electrospinning process. We investigated the influence of the draw ratio, the laser power, and the applied voltage on the structure and properties of laser-electrospun poly(ethylene terephthalate) fibers, specifically, their birefringence, boil-off shrinkage, and mechanical properties.…
The boron‐nitride (BN) nanocages are synthesized by nitrogenation of amorphous boron nanoparticles at 1073 K under nitrogen and ammonia atmosphere. The BN nanocages exhibit a well‐crystallized feature with nearly pentagonal or spherical shape, depending on their size. High‐resolution transmission electron microscopy s…
A tribenzotetraazachlorin (TBTAC)-C(60) conjugate having three 15-crown-5 units as substituents, , has been synthesized, and the electronic and supramolecular structure modulations in the presence of Na(+) or K(+) have been elucidated by means of massmetric and spectroscopic techniques.
New composite materials were fabricated by the incorporation of nanodiamond into plated films. The nanodiamond content in the films was found to saturateat around 2% as the concentration in the bath was increased. It was found that a strong interaction must be induced between the nanodiamond and the deposition frontie…
Physical parameters of wurtzite Zn1-xMgxO (0 ≤ x ≤ 1) were analyzed using first-principles calculations. A plane-wave pseudopotential method was employed to a density functional theory, then the effect of Mg incorporation on its lattice parameters and spontaneous polarization in the c-axis direction was studied as a f…
A new intermetallic compound, MnGa2Sb2, has been synthesized by direct reaction from Mn and GaSb at 6 GPa and 500°C for 30 min using a belt-type high pressure apparatus. The compound crystallizes into an orthorhombic structure with the space group Iba2 (No. 45). The structure was refined by the Rietveld analysis of th…
Composite materials composed of poly(L-lactide) (PLLA) and bovine bone powder (average particle size 1.38 μm) were fabricated and the properties were investigated. Partially deproteined and defatted bovine bone was obtained by pre-treatment methods. Composite films were obtained by mixing completely dissolved PLLA wit…