Materials Literature
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Particulate reinforced thermoplastic composites are designed to improve the properties and to lower the overall cost of engineering plastics. In this study the effects of adding mica with variable particle size on the mechanical, thermal, electrical and rheological properties of nylon-6 was investigated. Composites of…
Electrolytic copper deposited on single crystals forms pyramidal crystals that grow parallel to the substrate at low current density without stirring. With stirring and higher current density, slanting platelet crystals with orientation are formed. Chloride and gelatin are typical additives for electrolytic copper foi…
A versatile peripheral-pore-nanocasting method is employed to fabricate a series of novel microcapsules with mesoporous shell of noble metal or noble metal oxides, including Pt, PdO, RuO2 and IrO2. The shell thickness of these hollow microcapsules can be adjusted by controlling the depth of 3-amino-propyltriethoxysila…
Asset management strategies are amongst the most important tools to address the economical, reliability, and operational requirements of extensive distribution networks in the environment of increasing deregulation. The key objectives are full utilization (i.e., exploitation of available network reserves), investment…
A chemical vapor deposition (CVD) route to nanosized ZnS and CdS thin films was developed. The layers were deposited on substrates in a atmosphere at temperatures between 473 and 723 K using as single-source precursors. Thermal decomposition and fragmentation of compounds were investigated by thermal analyses and mass…
The purpose of this study was to investigate the correlation between corrosion resistance and surface composition of an experimental Ti-20 mass% Cr casting alloy in a saline solution containing fluoride. The alloy had a greater resistance to corrosion in a fluoride-containing saline solution than did commercially pure…
A breakthrough technology is one that breaks through the dam of conventional wisdom and slow progress, opening up prospects for transformative change. The radical novelty of a "breakthrough technology" is thus conveyed by the old, familiar, and rather conventional image of a "breakthrough". This holds true for nanotec…
Photochemical and enzymatic synthesis of formic acid was investigated from HCO3− with formate dehydrogenase (FDH) from Saccharomyces cerevisiae and reduced methylviologen (MV2+) produced by the visible light photosensitization of zinc tetrakis(4-methylpyridyl) porphyrin (ZnTMPyP) in the presence of triethanolamine (TE…
Micro/nanoporous ZnO ∶ Al films were fabricated through the pyrolytic transformation of AlCl3-added layered hydroxide zinc acetate (LHZA) self-templates. Formation of the self-templates on glass substrates was achieved on the basis of heterogeneous nucleation and crystal growth that proceeded in a chemical bath compos…
The fabrication and evaluation of solid-state supercapacitors based on a Nafion electrolyte in aqueous and nonaqueous systems are described. The Nafion membrane in a nonaqueous system is impregnated with 30% of phosphoric acid in ethylene glycol and characterized in a supercapacitor configuration by cyclic voltammetry…
The present theory and character for antibacterial materials of silver nanoparticles and its up-to-date application on medical appliances and appliances for daily use were also described.
A hemicarcerand encapsulates, stores and releases gases in the solid state.
The existing evidence for the nature of the phase diagram for the binary system sodium nitrate-potassium nitrate is reviewed and in particular whether the system is of the continuous solid solution type, as has often been stated in the last 80 years, or whether this system is of the eutectic type as was earlier believ…
The synthesis of indaphyrins, novel meso-tetraarylsecochlorin-derived chromophores incorporating o-phenyl-to-beta-linkages, is described. Oxidative diol cleavage of meso-tetraaryl-2,3-dihydroxy-2,3-chlorins results in the formation of a secochlorin bisaldehyde. Depending on the reaction conditions during the ring clea…
One of the advantages of using natural fibers in composites is that they are biodegradable and renewable. Many applications for composites, however, require high performance and durability. While our attention is being drawn to renewable, biodegradable and sustainable resources for materials, we are faced with the con…
Pure samples of H2O (D2O) ice IV and of H2O (D2O) ice XII were prepared by isobaric heating of high-density amorphous ice at a rate of ≈0.5 K min−1 up to ≈175 K and a pressure of 0.81 GPa for ice IV, and at a heating rate of ≈12 K min−1 and a pressure of 1.21 GPa for ice XII. The crystalline phases recovered at 77 K a…
The surface energies and electronic structure of (111), (110), and (100) surfaces of CeO2 have been studied using the first-principles projector augmented-wave method within the local density approximation (LDA) and generalized gradient approximation (GGA) and are compared with molecular dynamics (MD) simulations at 1…
The effect of an applied tensile stress on the pore ordering during anodization of aluminum was studied. A regular arrangement of nanopores was observed at a relatively low external tensile stress. On the contrary, a high tensile stress completely destroys the pore arrangement on anodized surfaces. Under such conditio…
New push-pull NLO-phores based on lanthanide complexes (Ln = La, Gd, Dy, Yb) featuring an annelated dibutylaminophenyl functionalised terpyridyl ligand have been synthesised and shown to exhibit large first-order hyperpolarizability.
Exfoliated graphite (EG) is proposed as an electrode material for solid-state electrochemical capacitors. The EG-based capacitors assembled with a solid electrolyte of polyethylene oxide-ethylene carbonate-propylene carbonate- show high specific capacitance in the range of The capacitors also show excellent cyclabilit…