Materials Literature
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Cadmium oxide (CdO) thin films of thickness 50 to 200 nm were deposited on glass substrates maintained at 400°C using spray pyrolysis technique. CdO thin films were deposited by varying the molar concentrations of cadmium acetate solution such as 0.01, 0.05, 0.1, 0.15 and 0.2 M. X-ray diffraction studies reveal that t…
Thin Silver films of thickness 15nm were prepared by thermal evaporation on well cleaned glass substrates at room temperature at a pressure of 2×10−5 mbar with the deposition rate of 0.01À/sec and annealed in air for an hour at temperatures between 300°c and 400°c. The prepared films were characterized by X-ray diffra…
In the present work we have grown InSb thin films on brass substrates, using the electrodeposition technique. The electrochemical baths used in the growth were made up of aqueous solutions of InCl3 and SbCl3 mixed together in various proportions. The films grown were characterized by X-Ray diffraction (XRD), Scanning…
A systematic study of electronic, and thermal properties such as the Density of states, Fermi energy, Debye temperature and specific heat coefficient, has been carried out using the results of electronic bandstructure and related characteristics of the Laves phase compound, TiFe2. Computation of electronic bandstructu…
The increasing demand for fossil fuels and the need to reduce greenhouse gases require clean energy sources and more efficient utilization of energy. Thermoelectric materials provide a means toward achieving these goals since they convert heat, including waste heat, directly into an electric potential difference. Meta…
AFM pictures of nanocrystalline cellulose prepared from sulphuric acid with two different starting materials, microcrystalline cellulose and cellulose extracted from barley husk.
Image of the simple concrete specimen treated in this Master's Thesis project, seen with parts from a DIC-image, the FE-model and a fluorescence image respectively.
Mg0.25Cu0.25Zn0.5Fe2O4 is synthesized by sol gel auto combustion technique. The obtained ferrite powder is finally sintered in a microwave furnace at 850°C. Multilayer chip inductor (MLCI) of two layers is prepared by screen printing technique. The sintered ferrite is characterized by X-ray diffraction. The frequency…
Binary alloys comprising of the rare earth metals along with ruthenium, RE-Ru, have been noted to display superconductivity at low temperatures. Furthermore the alloys display interesting magnetic properties such as anomalies in magnetization measurements below the magnetic ordering temperature. In order to understand…
ZnTeO is a promising material for next generation photovoltaics and X-ray scintillators. ZnTeO is a highly mismatched alloy (HMA) where O is much more electronegative than the host Te. O and HMA effects between O and the CB of ZnTe have been predicted to form a sub-bandgap band[1]. When the oxygen concentration is hig…
The band structure calculations are performed on the intermetallic compounds Rh3V and Rh3Vx(Al)1-x by Full Potential Linearized Augmented Plane Wave(FP-LAPW) method. Total energies are calculated as a function of volume and fitted to Birch-Murnaughan equation of state to find the lattice parameter and the other ground…
Container-crops horticultural industries rely almost exclusively on petroleum-based plastic containers for modern production systems. Containers made of these materials fulfill all of the functions required during crop production, and perform better than containers made of clay, peat, and other natural materials, but…
Solid polymer electrolytes (SPEs) based on Polyethylene oxide (PEO) doped with potassium chloride (KCl) were prepared by the solution cast technique. The conductivity increases from 10−10 to 10−6 Scm−1 at 303K with dopant. Optical absorption study shows that the direct & indirect optical band gaps were found decreased…
Electromigration is a process in which a metallic contact line is thinned by passing a current through it; which occurs due to a gradual displacement of atoms, ultimately leading to destruction of the wire. Despite the active investigations on electromigration for over fifty years, until now there is no general theory…
This thesis aims at developing a method of chemical aftertreatment for reduction of free formaldehyde release of a tetrakis (hydroxymethyl) phosphonium chloride (THPC) urea precondensate, ammonia cured durable flame retardant finished cotton fabric, by preventing the formation of free formaldehyde. Formaldehyde is tox…
Dodecanethiol-capped gold nanoparticles (AuNPs) are self-organized in two different amphiphilic monolayers one of which is a single-tailed fatty acid Stearic acid (StA) and the other a double-tailed lipid 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC). In the StA-AuNP film the AuNPs self-organize to form an interc…
Synthesis of styrene, acetate, and acrylate derivatives bearing the 1,2,3-triazole-4,5-dicarboxylate moiety through Cu-free Huisgen 1,3-dipolar cycloadditions are presented.Following synthesis, the monomers were copolymerized with styrene and n-butylacrylate via nitroxide mediated radical polymerization (NMP) methodol…
An experimental investigation of surface flashover characteristics of PMMA and POM is studied in compressed nitrogen gas environment with nitrogen as the background gas. The operating pressure range is from 1kg/cm2 to 4kg/cm2. It is observed that the breakdown voltage of PMMA is higher than POM owing to a higher permi…
Temperature dependent ionic conductivity (σ), ionic mobility (µ), and mobile ion concentration (n) of the hot-pressed Solid Polymer Electrolytes (SPEs): (1-x) PEO: x NaBr, where 0 < x < 50 in wt. %, has been reported. SPE films have been casted using a hot-press technique in place of the traditional solution cast meth…
1 FAMN Department, Faculty of Physics, University of Seville, Seville, Spain 2 Max Planck Institut fur Plasmaphysik, Garching, Germany 3 General Atomics, PO Box 85608, San Diego, CA 92186-5608, USA 4 Culham Center for Fusion Energy, Culham Science Center, Abingdon, Oxfordshire, UK 5 FOM-Institute DIFFER, Nieuwegein, T…