Materials Literature
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In this study kenaf fibre was blended with recycled polyethylene terephthalate (rPET) from a municipal solid waste (MSW) landfill to produce a moulded composite material. Due to difficulties in rPET processing and low impact properties, ABS was introduced as impact modifier and stabilizes the rPET processing and impro…
Particle mixing and sedimentation, related to corium debris bed formation and coolability in severe accidents, is investigated using a new computational fluid dynamics tool: the Analysis of Debris Dynamics and Agglomeration (ADDA) code. ADDA was developed based on an enhanced numerical method combining the moving part…
Release of core melt from failed reactor vessel into a pool of water is adopted in several existing designs of light water reactors (LWRs) as an element of severe accident mitigation strategy. When vessel breach is large and water pool is shallow, released corium melt can reach containment floor in liquid form and spr…
To ameliorate the large volume expansion/contraction during lithiation/delithiation process of metallic tin anode for high-performance lithium-ion batteries (LIBs), a unique sandwich-typed threedimensional nanoporous copper-supported tin (3D-NPC/Sn) thin-film anode was prepared by partly chemical dealloying of as-cast…
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A phase stability diagram of ruthenium–zirconium oxide (Ru–Sn–O) was constructed by a combination of ab initio density functional theory and thermodynamic calculations. Results suggest that the phase separation/segregation that has been reported in the literature for the RuO2–SnO2 system is through a typical spinodal…
The processing techniques, microstructures, and mechanical properties of directionally solidified eutectic ceramics are reviewed. It is considered the main methods for preparing of eutectic ceramics and the relationships between thermal gradient, growth rate, and microstructure parameters. Some principles of coupled e…
In recent years, there have been a tremendous increase in interest, research and development in the natural fiber, biopolymers and polymers materials for their use in bio-composite, packaging, agriculture, medicine etc. Many scientists are modifying traditional materials to more user-friendly and novel polymer composi…
Synthesis of non-doped and Ni (0.5% and 1% atom) doped perovskite type SrTiO3 (STO) was carryout by solidstate reaction route. The influence of doping amount of Ni on STO was investigated. The phase transformation was confirmed by X-ray diffraction (XRD) analysis. All the compositions synthesized have cubic structure…
Sulfur oxides (SO x ) in the diesel engine exhaust are one of the major factors contributing toward deactivation of emissions aftertreatment catalysts. Interactions of SO x with the catalyst metals and supports can result in sulfate formation. Here, we review various experimental and computational studies regarding SO…
The IV and V group transition metals borides, carbides, and nitrides are widely known as ultra-high temperature ceramics (UHTCs), owing to their high melting point above 2500°C. These ceramics possess outstanding physical and engineering properties, such as high hardness and strength, low electrical resistivity and go…
Archaeological and chemical evidence associated with ancient dye vats used for purple dyeings have provided new scientific perceptions regarding the various stages of the process of dyeing with the pigments extracted from Muricidae sea snails. These steps were described two millennia ago by Pliny the Elder in his ency…
Abstract — Glass fiber reinforced polymer composites are one of the most widely used composite materials. The addition of Coal ash to polymer matrix dramatically increases the overall mechanical strength of the composite material as compared to the polymer composite. In view of this, a method is proposed for mixing co…
Variable cross-section split Hopkinson pressure bar(SHPB) with a diameter of 50 mm is adopted to implement radial loading to the mine sandstone Brazilian disc,which has a thickness-diameter ratio of 0.5.Dynamic tensile tests at various loading rates are obtained by altering impact loading pressures.Through investigati…
Increasing attention has been shown in recent years on natural antimicrobial compounds. In particular, chitosan (a natural biodegradable, biocompatible and nontoxic biopolysaccharide derived from chitin) is one to the most abundant and promising biopolymers. Its unique chemical structure, involving high positive charg…
Breast cancer is the most common type of cancer in women worldwide and it is the second cause of cancer death after lung cancer. There have been many efforts in producing various pharmaceuticals for breast cancer treatment and among them Nanopharmaceutical Sciences have been extremely of high importance. All the drugs…
High-pressure hydrogen gas seal is one of key technologies for realization of hydrogen energy system. It is important to understand the durability of high-pressure gas seal. Ethylene-propylene rubber (EPDM) and acrylonitrile-butadiene rubber (NBR) composites filled with carbon black, silica, and unfilled composites we…
Composites of modified halloysite and polyamide 6 (PA 6) have been synthesized by the thermoplastic processing method and their mechanical and thermal properties as well as structure studied. The layered mineral samples modified with ultrasound and then with gelatin (codenamed HUŻ) were found to have a positive influe…
Growth of ZnO nano and microstructures were carried out by low temperature hydrothermal method on glass and silicon substrates without seed layer. Crystallographic orientation and morphology of the samples were studied by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The transmittance measurements we…
on zirconium dioxide under hydrothermal conditions is the chemical prehistory of the starting materials. The possibility of varying the synthetic parameters to obtain a zirconia-based material with high porosity and specic surface area was shown.