Materials Literature
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Phosphate glasses with various compositions of lithium oxide and indium oxide were synthesized by melt quenching technique. The glass forming ability parameter K_{gl} was characterized by differential thermal analysis. The electrical measurements for all the glass samples were carried out in the frequency range of 10…
Nanotechnology demands the ability to control features at the nanoscale (10 −9 m), and a variety of techniques have been developed recently that give humanity this ability. From a fundamental science perspective, issues of physics and chemistry must be addressed at these scales. Surface and boundary effects can domina…
The Japan Atomic Energy Agency (JAEA) has started to study and develop zirconium carbide (ZrC)‐coated fuel particles for advanced high‐temperature gas‐cooled reactors. The ZrC coating layer has been fabricated at JAEA by chemical vapor deposition using a pyrolytic reaction of zirconium bromide. The microstructures of…
Nanocarbons, defined as nanometer-sized carbon clusters including fullerenes, carbon nanotubes and nano-diamonds, are one of the most fascinating materials known today. Applications for electronics and optics require controlled size and/or structure of these materials, because the physical properties are well known to…
Springs are characterised by seasonal fluctuations of the main environmental parameters (e.g., temperature and alkalinity), which are dampened if compared to those of other freshwater habitats, and they integrate direct and indirect impacts on the drainage basin in space and time. This peculiar environmental stability…
Cs Y 2 F 7 : 78% Y 3+ , 20% Yb 3+ , 2% Er 3+ nanocrystals with a mean diameter of approximately 8 nm were synthesized at 185 ° C in the high boiling organic solvent N ‐(2‐hydroxyethyl)‐ethylenediamine (HEEDA) using ammonium fluoride, the rare earth chlorides and a solution of caesium alkoxide of N ‐(2‐hydroxyethyl)‐et…
Steam reforming (SRM) and oxidative steam reforming of methanol (OSRM) were carried out over a series of coprecipitated CuO-CeO2 catalysts with varying copper content in the range of 30-80 at.% Cu (¼ 100 � Cu/(Cu þ Ce)). The effects of copper content, reaction temperature and O2 concentration on catalytic activity wer…
The aim of this research was to develop the interrelation between twist and the overfeed of the effect component and such structural and geometrical indices of fancy yarns as the linear density, the height of the effects, the width of the effects, the distances between effects, and the number of effects per unit lengt…
The crystal structures of general composition n Bi 2 O 3 - m B 2 O 3 were analyzed and systematized with the use of the structures of borate groups. Based on the CNs calculated by the bond valence method, the shapes of bismuth coordination polyhedra derived from an octahedron were suggested. A correlation was found be…
The initial corrosion of 7A04 aluminium alloy in marine atmosphere was studied.Salt fog test was used to simulate the marine atmospheric environment.Electrochemical impedance spectroscopy(EIS) and scanning Kelvin probe(SKP) were employed to investigate the electrochemical behavior of 7A04 aluminium alloy in marine atm…
Th is study was designed to determine some mechanical properties such as modulus of rupture (MOR) and modulus of elasticity (MOE) of wood treated with some environmentally-friendly fi re-retardant boron compounds. Sodium perborate (SP) boric acid, (BA), and borax (BX) were used as boron compounds. Wood specimens were…
An efficient, fast and easy method for the synthesis of new optically active and thermally stable aromatic polyamides (PAs) containing a pendant phthalimide group and L-leucine flexible side-spacer using ionic liquid (IL) by microwave irradiation, as well as conventional heating, has been investigated. ILs are outstan…
Melt sonocrystallization a novel particle engineering technique to enhance dissolution of hydrophobic drugs and to study its effect on crystal properties of drug. It forms Valdecoxib agglomerates with number of shallow circular pits on the surface leads to increase solubility. Melt sonocrystallization process was deve…
Changes in thermal and mechanical properties of polyvinylbutyral (PVB) modified phenolic resole resin were studied. The DSC and TGA studies show that an increase in PVB content results in a reduced thermal stability at temperatures above 360 °C, but causes little change in thermal properties at temperatures below 300…
NRC publication: Yes
We have reported a new approach to fabricate mesoporous silica composite nanosheets by milling the corresponding hollow spheres. The mesoporous nanosheets are amphiphilic, and can be well dispersible both in water and oil, serving as particulate emulsifiers in o/w or w/o systems. The mesoporous silica can assist other…
The aim of this study was to characterize the influence of functionalization of synthetic poly-(L-lactic acid) (PLLA) nanofibers on mechanical properties such as maximum load, elongation, and Young's modulus. Furthermore, the impact of osteoblast growth on the various nanofiber scaffolds stability was determined. Nano…
We study the thermal and electric transport of a fluid of interacting Dirac fermions as they arise in single-layer graphene. We include Coulomb interactions, a dilute density of charged impurities and the presence of a magnetic field to describe both the static and the low frequency response as a function of temperatu…
CO oxidation reaction was studied over monometallic and bimetallic palladium--platinum catalysts at 25:75, 50:50, and 75:25 Pd:Pt atomic fractions co-impregnated over a \gamma -Al_2O_3 support. The size of the metal particles, measured by modified hydrogen chemisorption, increased as the Pd fractions in the catalyst i…
Water‐soluble DNA‐wrapped single‐wall and double‐wall carbon nanotubes (DNA‐SWNTs, DNA‐DWNTs) have been well separated by length incorporating size‐exclusion high‐performance liquid chromatography (HPLC). The morphology and electronic properties of the size‐ (length‐) separated DNA‐SWNTs and ‐DWNTs are investigated by…