Materials Literature
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K for 60 min. in vacuum (≈10 -5 torr). The X-ray diffraction analysis confirmed that these annealed films are polycrystalline corresponding to the rock salt (NaCl) FCC structure. From the XRD profiles, the grain size, dislocation density, micro strain and lattice constants were calculated. Resistivity of the virgin an…
Ultrasonic velocity and density measurements in WO 3 – Na 2O – P2O5 and WO 3-CaO-P2O5 composition glasses have been made at the room temperature by making use of pulse echo overlap method. These values are used to evaluate elastic moduli such as longitudinal, Young’s, bulk and shear moduli, Poisson’s ratio, acoustic i…
One of the methods of protecting steel against corrosion is by alloying addition as found in stainless steel. Corrosion resistance of Austenitic Stainless Steel is investigated in cassava fluid, maize pulp, and seawater. The rate of corrosion of stainless steel was highest in seawater (0.00179 mm/y) than in maize pulp…
A B ST R A C T Modern polymer chemistry is highly progressive in tailoring polymers to specific requirements such as mechanical, thermal and chemical stability, with better performance with wide range of pore size. Composite materials combine and maintain two or more distinct phases to produce a material that has prop…
Chemical composition and fiber characteristics of Iranian kenaf whole talk were determined. Then Soda and Soda-anthraquinone (Soda-AQ) cooking of kenaf core, bark and whole stalk from Iran was carried out under different conditions and pulps with good to very good yields and mechanical properties were obtained. The So…
Bird impact generally occurs during taking off or landing of flights. It is termed as soft body impact and assumed to be a hydrodynamic body. Shape Memory Alloy is a smart material which gets its original shape by heating. The impact on plastic kinematic materials are analyzed for kinetic energy, internal energy and c…
4 Abstract: The feasibility of heat engines, coupled with an internal combustion engine and designed to increase the coefficient of efficiency of hydrocarbon or other chemical fuels, was considered. The prospects of the use of osmotic phenomena in aqueous solutions of thermosensitive polymers in order to improve the o…
A thorough study on the aqueous solubility of 1,1/1,2-diphenylethane using different hydrotropes such as diethylnicotinamide, sodium pseudocumene sulfonate and sodium thiocyanate at various concentrations (0-3.0 mol/L) and at different system temperatures (303K to 333K). Consequent to the increase in solubility, the p…
The aim of this study was to develop a statistical model for the effect of RS (Rotor Speed), YT (Yarn Twist) and YLD (Yarn Linear Density) on production and quality characteristics of rotor spun yarn. Cotton yarns of 30, 35 and 40 tex were produced on rotor spinning machine at different rotor speeds (i.e. 70000, 80000…
Bacterial adhesion is the initial step towards the establishment of a biofilm and the process can be influenced by a number of environmental factors, including salt concentration of the bulk solution. This study investigated the influence of ionic strength on the elasticity of bacteria cell surface appendages by Quant…
The interaction of a solid with its surroundings is through the available surface area for adsorption of gas or vapour molecules. This also allows probing of materials surface including irregularities and pores. One of the most successful methods is based on the BET method for gas adsorption onto a solid surface. The…
Drug administration via mucosal membranes, including the vaginal, has the advantage of by passing the hepatogastrointestinal first pass metabolism associated with oral administration. Metronidazole suppositories were prepared using different suppository bases viz., water soluble bases ( PEGs and gelatin ) emulsion and…
The University of Missouri Research Reactor (MURR ® ) is one of five U.S. high performance research and test reactors that are actively collaborating with the Global Threat Reduction Initiative (GTRI) Reduced Enrichment for Research and Test Reactors (RERTR) Program to find a suitable low-enriched uranium (LEU) fuel r…
Continuous casting machines produce dozens of various steels that are divided into classes according to norms or standards and further sorted into groups with respect to the carbon content. In steel classes, the chemical composition and its allowed range are prescribed and they significantly affect thermophysical prop…
At the Electron Stretcher Facility ELSA, a new synchrotron light diagnostic beamline has been installed in order to perform high resolution, transversal and longitudinal beam profile measurements by analyzing the emitted synchrotron light. For this purpose, the main deflecting Al mirror selects a wide range of wavelen…
Titanium dioxide nano layers of same thicknesses, and near normal deposition angle, and same deposition rate were deposited on glass substrates, at room temperature, under UHV conditions. Silver nano particles of different thicknesses also near normal deposition angle and same deposition rates were post deposited on T…
This study investigates the properties and cutting performance with thin layers applied by two PVD technologies. PVD methods ARC and LARC were used for the deposition of thin coatings onto tools prepared by powder metallurgy (PM). Advanced types of layers - multilayer AlTiCrN and nanocomposite type of nc-AlTiN/Si3N4 l…
Waste plastics are creating environmental problems and occupying large amount of landfill. PVC waste is generating ~10 % and PET ~8% from total waste plastics. Catalytic degradation of polyvinyl chloride and polyethylene terephthalate mixture to petrochemical recovery at temperature ranges from 120-420 oC using alumin…
Composite materials, especially, fibre reinforced plastics (FRP) are widely used in different fields such as aerospace, automobile, electrical and electronics, domestic, building and construction. It is also need of the hour in developing countries like India that low cost housing / building is to be provided within s…
The combination of photoactivity and semiconductivity of TiO2-solids is an important factor to find application in entire new generations of light-induced electrochemical devices, able to produce electricity or/and green combustibles, such as hydrogen. The present paper is an attempt to describe the possibilities to a…