Materials Literature
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Heat treatment of barium iron vanadate glass, BaO‐Fe2O3‐V2O5, at temperatures higher than crystallization temperature causes a marked decrease in resistivity (ρ) from several MΩcm to several Ωcm. 57Fe Mössbauer spectrum of heat-treated vanadate glass shows a marked decrease in quadrupole splitting (Δ) of FeIII, reflec…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Radhakrishnan Srinivasan, Satish Bolloju; Optical properties of undoped and Mg doped CuCrO2 powde…
High quality single crystalline GaN nanowires with large aspect ratio (>100) are synthesized on n-type Si (111) substrate via Au-catalyzed vapor-liquid-solid process. Morphology, crystal structure, and optical property of the as-synthesized GaN nanowires are characterized by means of X-ray diffraction, scanning/transm…
The title system, composed of a highly magnetic core surrounded by a thin arsenite shell, has been synthesized and applied to the magnetically facilitated targeting of anticancer agent (sodium arsenite) at lower dose with minimal side effects and higher efficacy in a biocompatible manner.
The corrosiveness of phosphoric acid during the wet-process concentration is quite complex and dependent on several influencing factors. The factor, which has the most significant impact, is the presence of impurities. For example, at a given concentration, the presence of fluorine, calcium oxide, sodium and chlorine…
This work deals with the experimental characterization of the rheological properties of a dip solution which will be used to elaborate a new apatite/clay microfiltration membrane by deposition using slip casting process of the active layer on a tubular support based on natural clay previously prepared. So, the rheolog…
The main objectives of this study is to determine the fluid flow characteristics and cavitation phenomena during molten A356 alloys processed via high power ultrasonic treatment (UST) as well as the resulting solidification microstructure of the ultrasonically processed A356 alloys. A previously developed UST modeling…
Nowadays a lot of studies were conducted to improve electronic properties of ZnO for transparent conducting oxide materials using single-wall carbon nanotube (SWCNT). In this study, ZnO nanocomposite films containing 0.1 wt % of SWCNTs were synthesized using a sol–gel method. Variation in ball-milling time of SWCNTs u…
The effect of polyethylene glycol 1500 on physicomechanical properties of rigid polyurethane-polyisocyanurate (PUR-PIR) foams has been studied. It was found that application of polyethylene glycol 1500 for synthesis of foams in amount from 0% to 20%w/whad an effect on reduction of brittleness and softening point, whil…
SLPM and the W7-AS stellarator
Interface properties of nano-silica/thermotropic liquid crystalline polyesters (TLCP) composites were investigated by X-ray diffraction analysis and differential scanning calorimetory. The crystallinity of TLCP in the composites drastically decreased with an increase of nano-silica content, depending on the surface ar…
The optical properties of vanadyl phthalocyanine (VOPc) thin films have been studied in the spectral range 300-900 nm. Variations in the optical constants with wavelength are found to be thickness dependent of the films. The optical band gap E g and optical conductivity ? opt were determined. The analysis of the optic…
Potassium titanate, K2TiO3, with a chain structure of TiO5 polyhedra was exfoliated in an aqueous nitric acid solution of pH ≤ 1 and Tyndall scattering due to the colloid formed by the exfoliation was observed. The colloidal particle size measured by dynamic light scattering was approximately 300 nm. The stripe patter…
Silicon-centered polyoxomolybdate K4[SiMo12O40] (KSM) with the Keggin type structure was investigated as the cathode material for rechargeable lithium battery. The discharge capacity and cycle performance of KSM mainly depends on the annealing temperature. This material shows improved discharge capacity by the increas…
To better understand experimentally observed surface‐enhanced Raman Scattering (SERS) of polychlorinated biphenyls (PCBs) adsorbed on nanoscaled silver substrates, a systematic theoretical study was performed by carrying out density functional theory and time‐dependent density functional theory calculations. 2,2′,5,5′…
The stability of gaseous GeMo 2 O 7 and GeB 2 O 4 were confirmed by Knudsen effusion mass spectrometry. To get structure parameters of these gaseous salts quantum chemical investigation of molecules was undertaken.
The experimental investigation of diffusion bonding of magnesium alloy (AZ31B) to Cu in vacuum was carried out by using Sn foil as transition metal. The microstructure of the welded joints was studied by SEM, EDS, XRD and the mechanical properties of the samples were tested by tensile experiments. The results show tha…
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Age-hardenable Al–Mg–Si alloys containing additional elements of Ag, Cu, Pt or Pd were processed by high-pressure torsion (HPT) and they were subsequently aged at a temperature of 373 K for up to a total period of 5,400 ks. It was found that, in all alloys, the grain sizes after HPT were refined to 300–430 nm and ther…
The electromagnetic pulse technology (EMPT) provides non-contact processes for joining, welding, forming and cutting of metals. For EMPT processing electromagnetic coils are used, to which a short but very high-power electric current is applied from a pulse generator. The coil produces electromagnetic forces, which ca…