Materials Literature
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In this paper, we report on the oxidation behavior of Ti 3 GeC 2 and Ti 3 ͑Ge 0.5 ,Si 0.5 ͒C 2 .The oxidation kinetics were studied thermogravimetrically in air in the 700-1000°C temperature range.The oxidation layers formed on Ti 3 GeC 2 at 700°C were protective; at 800°C and higher, they were not.The addition of Si…
First-principle calculations based on the plane-wave pseudopotential method have been used to study the surface energy and structure of anatase TiO2(101) surface.There are six different structures of the anatase TiO2(101) crystal surface because different atoms are terminated on the surface layers. The calculation res…
Working in tight protective clothing made from coated fabrics, which are not permeable to water vapour, causes considerable discomfort, among other reasons because it is impossible to expel high quantities of intensively secreted sweat from the garment [1]. The sweat accumulates on the skin and on the internal surface…
The impact of surface finish on rotary beam fatigue life of 0.323 mm Nitinol (Ni 56wt%-Ti) wire is studied. In preparation of the wire samples, processing parameters such as cold work reduction and annealing were held constant for all surface conditions investigated. Various Niti wire surfaces such as light oxide, dar…
This project deals with the prediction of knitted fabric weight per unit area using appropriate software called proKNIT. This software has been designed according to the existing literature, and can determine the weight of knitted fabrics in different relaxing conditions by entering process and material variables, suc…
A CuO nanoflower film was fabricated on copper by controlled surface oxidation in KOH aqueous solutions with an oxidant K2S2O8 and subsequent heat treatment in air. Results show that the nanoflower is formed by self-assembly of tens of CuO nanosheets. The nanosheet is about 2μm in length, 120nm in width, and 12nm in t…
The stress wave propagation and energy dissipation in jointed rocks are investigated by split Hopkinson pressure bar(SHPB)technique and fractal theory.The influence of the irregular geometrical configuration of the joint surface on the wave propagation,inelastic deformation and energy dissipation has been analyzed.It…
The primary goal of this technology assessment is to provide an initial evaluation and technology screening for the application of a Fuel Cell Energy/Power System (FCEPS) to the propulsion of an Unmanned Underwater Vehicle (UUV). The impetus for this technology assessment is the expectation that an FCEPS has the poten…
Abstract The lanthanide complexes L 2 Ln(NO 3 ) 3 ( 3 ) and L′ 3 [Ln(NO 3 ) 3 ] 2 ( 5 ) (Stewart and Siddall III. J Inorg Nucl Chem 1971, 33, 2965–2970) were obtained, where L is the tetraethyl ester of ethylenediphosphonic acid ( 2 ), L′ is the tetraisopropyl ester of ethylenediphosphonic acid ( 4 ), and Ln is La, Ce…
Cerium dioxide films were deposited on silicon substrates by chemical vapor deposition using tetrakis (3-methyl-3-pentoxy) cerium. The deposited films were found to have a columnar structure when viewed cross-sectionally with the scanning electron microscope. The lateral variation of the film thickness was measured by…
The identification of a Rh-oxidised species of a Rh(0.29)/Ce0.68Zr0.32O2 catalyst that exhibits peculiar CO-O2 kinetics [I. Manuel, J. Chaubet, C. Thomas, H. Colas, N. Matthess and G. Djéga-Mariadassou, J. Catal. 2004, 224, 269] is addressed. For this purpose, various catalysts are studied by XANES, CO- and N2-FTIR, a…
The adsorption of boron on alumina (Al2O3) and magnesia (MgO) has been investigated in aqueous solutions as a function of pH, boron concentration, amount of adsorbent, ionic strength and temperature. Analysis of the experimental data indicates that under the optimum pH conditions, the adsorption mechanism depends on t…
The aim of present paper is the investigation of relationship between inhomogeneous deformation behavior and macroscopic deformation behavior arising in SMA during cyclic loadings. Firstly, a test system was constructed on the basis of Digital Image Correlation in order to measure inhomogeneous deformation behavior. S…
Flax fibres are oftenly used for reinforcing thermoplastic to manufacture biocomposite materials exhibiting numerous advantages such as high mechanical properties, low density and biodegradability. The mechanical properties of a biocomposite material depends on the nature and orientation of the fibres, the nature of t…
We have used mixed monolayer protected gold clusters (MMPCs) to provide flavoenzyme model systems with a high affinity and ability to modulate cofactor reduction potential.
The discovery of infrared radiation two centuries ago and the theory of blackbody radiation one century later have given birth to the field of thermal imaging. Since then, researchers have devised numerous ways to detect infrared radiation. From World War II to the 1980s, semiconductor-based cooled photon detector arr…
The specific features of thermal degradation and combustion of polypropylene nanocomposites based on organically modified layered aluminosilicate were studied. On the basis of thermogravimetric analysis data, a kinetic model that takes into account the diffusive character of the thermal degradation process for the PP…
The role of in the luminescence of several activated borate phosphors was examined. The results showed that under excitation, the photoluminescence of was improved with the incorporation of in the systems of and , while in the case of and , the luminescence of was decreased when was introduced into the host lattice. A…
Polymethylsilane (PMS) modified with titanium chloride (TiCl4) or molybdenum chloride (MoCl5) was pyrolyzed at various temperatures to enable a detailed investigation of stable phases formed during pyrolysis. The existence of TiSi2 in PMS-TiCl4 precursor and β-MoSi2 in the PMS-MoCl5 precursor below 1273 K suggested a…
Abstract The evaporation kinetics of pure Romascone® (methyl 2,2‐dimethyl‐6‐methylene‐1‐cyclohexanecarboxylate) and Romascone® when mixed with vinyl acetate (VAc) nanoparticles have been determined by using thermogravimetric analysis. For pure Romascone®, the evaporation rate follows an Arrhenius dependence with tempe…