Materials Literature
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Gas sensors based on semiconducting metal oxide nanostructures are expected to exhibit better sensing properties like sensitivity and selectivity, than gas sensors based on other materials. Majority of the semiconducting materials possess n-type conduction and it is due to the presence of bulk oxygen vacancies. The se…
There is an increasing trend of chemical industries toward new processes that should meet requirements such as generation of nearly zero waste chemicals, less energy, and sufficient uses of product chemicals in various applications. The reactive distillation provides an attractive alternative for reaction/separation p…
Shaped explosive charges with one dimension significantly larger than the other are called linear shaped charges. Linear shaped charges are used in various industries and are applied within specific technologies for metal cutting, such as demolition of steel structures, separating spent rocket fuel tanks, demining, cu…
Guar –gum/ Polyvinyl alcohol (GG/ PVA ) blend films were prepared by using Guar –gum , polyvinyl alcohol ( PVA ) and Citric acid ( CA ) as additive and gluteraldehyde as crosslinking agent for the mixing process . The additives , drying temperature , and the influence of crosslinker of films on the properties of the f…
The Transuranus PUREDI model calculates the plutonium redistribution across the fuel pellet due to thermal diffusion. This phenomenon is particularly significant in oxide fuels for fast breeder reactors (FBR) where temperatures and temperature gradients are extremely high. The first version of PUREDI was developed and…
The inhibition efficiency of aqueous extract of milling tonia hortensis linin.F (MTHL) on the corrosion of mild steel in ground water was investigated by weight loss measurements and electrochemical studies. The corrosion rate of mild steel and the inhibition efficiencies of the extract were calculated. The results ob…
The main goal of this dissertation is to investigate the third-order nonlinearity of organic molecules. This topic contains two aspects: two-photon absorption (2PA) and nonlinear refraction (NLR), which are associated with the imaginary and real part of the third-order nonlinearity (χ (3)) of the material, respectivel…
Dielectric properties such as dielectric constant (I’) and dielectric loss tangent were studied as a function of composition, frequency and temperature for a series of Cu1+XTixFe2-2xO4 ferrite samples prepared by using conventional ceramic technique. Initial Ti4+ ion substitution results in decrease in dielectric cons…
Layered silicate/polymer nanocomposites are materials that display rather unique properties, even at low silicate content, by comparison with more conventional particulate-filled polymers. These nanocomposites exhibit improved mechanical, thermal, optical, gas permeability resistance and fire retardancy properties whe…
The emergence of quasi-periodic tiling theories in mathematics and material science is revealing a new class of symmetry, which had never been accessible before. Because of their astounding visual and structural properties, quasi-periodic symmetries can be ideally suited for many applications in art and architecture;…
Soil organic matter (SOM) has an important role in soil fertility and agricultural productivity. Carbon (C) sequestration in soil can be an important step towards soil organic matter (SOM) stabilization and conservation. The traditional practices used to increase SOM do not sequester significant quantities of C into s…
Single crystals of a novel organic urea citric acid (UCA) were grown by slow evaporation process. The grown crystals were characterized by single crystal X-ray diffraction (XRD), Fourier Transform Infrared (FTIR), thermal analysis (TG-DTA), UV absorption and dielectric studies. The structure of UCA was confirmed by si…
Newly prepared SnO 2 -CeO 2 catalyst samples used as depollution catalysts were characterized applying low-temperature nitrogen adsorption (BET), X-ray diffraction (XRD), thermo-gravimetry (TG-dTG) and temperature-programmed reduction (TPR) methods.Pure SnO 2 has higher surface area (17 m 2 /g) than the pure CeO 2 (8…
We consider the asymptotic behavior of nematic states of liquid crys-tals under non-constant applied external fields. We treat the Landau-de Gennes functional with the Dirichlet boundary condition for the direc-tor field. We show that in the special case where all elastic coefficients are equal, strong field does not…
Membrane technology has been realized as a useful tool in a variety of applications, such as health sector, food industry, sustainable water treatment and energy conversion and storage. However, the widespread use of this technology has been impeded by many issues including cost, performance, durability and etc. These…
Tradicijski kameni stupovi, izvedeni spajanjem baze, tijela i kapitela trnom u osi stupa, cesto su prožeti karakteristicnim pukotinama u okolici spojeva koje kontinuirano propagiraju. Brojnim sanacijama kroz povijest ne uspijeva se zaustaviti raspucavanje sto upucuje na neku sustinsku manjkavost. Radi utvrđivanja uzro…
Chemically oxidative polymerization of aniline and o-anisidine with 5 molar rations was performed using ammonium persulphate as an oxidant in HCl medium at 0-4 0C.It was observed that the copolymers were not regularly dependent on the monomer ration for yield and intrinsic viscosity.The resulting copolymers were chara…
Polymer-derived ceramics (PDCs) are a unique class of multifunctional materials synthesized by thermal decomposition of polymeric precursors. Due to their unique and excellent properties and flexible manufacturing capability, PDC is a promising technology to prepare ceramic fibers, coatings, composites and micro-senso…
Chiral mixed ligand (CML) metal complexes are synthesized by using isonitrosopropiophenone (HINPP) as a primary ligand and saccharides such as (+)-glucose and/or (-)-fructose as a chiral secondary ligand. The metal complexes have been characterized by elemental analysis and various physico-chemical techniques such as…
Mn(II) complex with orthohydroxypropiophenoneisonicotinoylhydrazone has been synthesized. The structural features and other properties were deduced from the IR, Electronic, EPR spectra and powder X-ray diffraction (XRD) techniques. The Electronic spectrum exhibits various bands which were characteristic of Mn(II) in d…