Materials Literature
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Codoped (Al-W and Mg-W) Ba0.5Sr0.5TiO3 (BST-0.5) thin films are deposited on ceramic alumina (Al2O3) substrate by pulsed laser deposition (PLD). Al-W and Mg-W doped target are prepared by using a piece of material (Al2O3 and MgO respectively) placed on a 10%wt WO3 doped BST-0.5 target, undoped BST-0.5 thin films are f…
The properties of thin thermoelectric layers (about 60 nm in thickness) prepared by pulsed laser deposition are presented. Hot pressed targets were made from “middle” temperature range thermoelectric bulk materials with the potential high figure of merit ZT. P-type and N-type layers were prepared from Yb0.19Co4Sb12 an…
In this brief communication, we report on the modification of polyurethane (PU) foams based on bifunctional soy bean oil-based polyol by nanoclay. Presence of clay at small loading has been observed to make the foam system more rigid. Modification has been analyzed by measurements on density and compressive strength.…
Aluminum-doped zinc oxide films were deposited by dc and rf magnetron sputtering from ZnO(98%)Al2O3(2%) target at room temperature on silicon and glass substrates under a variety of process conditions with the goal of attaining the highest transmittance and lowest resistivity for photovoltaic applications. The magnetr…
The vast majority of mollusks grow a hard shell for protection. Typical seashells are composed of two distinct layers, with an outer layer made of calcite, which is a hard but brittle material, and an inner layer made of a tough and ductile material called nacre. Nacre is a biocomposite material that consists of more…
This study reports on the high yield synthesis of new Si-containing polyimides which exhibit melting points between 140 and 400°C and degradation temperatures between 279 and 460°C. As a result of their meltability without decomposition, some of these materials have enormous potential in the production of complex shap…
Dense polycrystalline ceramics of lead-free perovskite solid solution (1−x)BaTiO3−xBi(Li1/3Ti2/3)O3 (0.05≤x≤0.20) have been synthesized via the conventional solid state reaction method. A morphotropic phase boundary separating the tetragonal and orthorhombic phases was observed between the compositions x=0.07 and 0.10…
Small molecule inhibitors always exhibit poor water solubility due to the inherent hydrophobic property. It is an important challenge when they are developed as a real drug. S1, a structure-specific Bcl-2 inhibitor encountered this issue when moved forward in preclinical development. Herein, we prepared a 1:1 type of…
We have theoretically investigated surface properties of the (001) surface in cubic barium manganese (BaMnO3) by the full-potential linear augmented plane wave methods within the local spin-density approximation. We present and discuss the electronic properties of the (001) surface of cubic BaMnO3 with BaO- and MnO2-t…
Jute fabrics/gelatin biocomposites were fabricated using compression molding. The fiber content in the composite varied from 20–60 wt%. Composites were subjected to mechanical, thermal, water uptake and scanning electron microscopic (SEM) analysis. Composite contained 50 wt% jute showed the best mechanical properties.…
Selective noncatalytic reduction technology (SNCR) is an effective and economical method of reducing NO x emissions from a wide range of industrial combustion systems. It is widely known that the SNCR process is primarily effective in a narrow temperature window, around 900−1000 °C, and that high CO concentrations can…
Abstract Benzoporphyrin monoacid derivatives, here named B3A and B3B, are promising new drugs for photodynamic therapy. Although both isomers show interesting characteristics as photosensitizing compounds, they have some distinct physicochemical properties such as the tendency to self‐aggregate in water‐rich media. Be…
Here we demonstrate the designing of new optical-based materials having nanotubular γ-CD aggregates linked by coumarin 480 dyes: Au nanoparticles for light harvesting system. It is found that the fluorescence quenching of the coumarin 480 dye increases from 79 to 99% due to confinement of the dye inside γ-CD. The form…
Ni–Mn–Ga ferromagnetic shape memory wires (Ni2.10Mn0.98Ga0.92, mean diameter 170 μm) are obtained by the rotating water bath melt spinning technique. The compositional heterogeneity linked to its dendritelike structure gives rise to a complex and broad martensitic transformation (MT). The reduced value of magnetizatio…
The current work focuses on predicting the fracture toughness of Al2O3 ceramic matrix composites using a modified Mandelbrot’s fractal approach. The first step confirms that the experimental fracture toughness values fluctuate within the fracture toughness range predicted as per the modified fractal approach. Addition…
Polymers are often used in fields of application with high mechanical loads. Thereby, micro-cracks, which can exist in every component, may grow up to overcritical lengths. Thus, components may fail even far below the maximum critical load. Equipping these components with self-healing capabilities is a smart way of pr…
We show how pressure fundamentally alters the repulsive nature of the nonreactive Li-Cs mixture, converting it from strongly phase separating at ambient pressure to strongly long-range ordering at high pressures. The ordered phases found via a global space group optimization within the density-functional theory are Li…
The effect of epoxidized natural rubber (ENR-50) as a compatibilizer on properties of high density polyethylene (HDPE)/soya powder (SP) blends was studied. The ENR-50 was used at 2.5, 5.0, 7.5 and 10 parts per hundred resins (phr). 2.5 phr of ENR-50 was the optimum content to increase the tensile properties of HDPE/SP…
Octahedral tilt transitions in epitaxial AgTa0.5Nb0.5O3 (ATN) films grown on (001)p (where p=pseudocubic) oriented SrRuO3/LaAlO3 and LaAlO3 substrates were characterized by electron diffraction and high resolution x-ray diffraction. It was found that the ATN films exhibited octahedral rotations characteristic of the P…
The activity of a biological photosynthetic community promotes the seasonal precipitation of hydrozincite, Zn(5)(CO(3))(2)(OH)(6), from heavy-metal contaminated waters of the Rio Naracauli stream, Sardinia. The precipitation removes from waters not only zinc, but also other heavy metals, such as Cd, Cu, Pb. The phenom…