Materials Literature
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Etching of indium tin oxide (ITO) thin films in high density chlorine plasmas is studied, with the goal of increasing the etching selectivity to photoresist. The ITO etching rate increases with ethylene addition, but is not affected by BCl3 addition. ITO exhibits a threshold energy for ion etching, whereas the photore…
In power system, the consistent power supply plays a vital role in generation, transmission and distribution. It is necessary to aid uninterrupted power supply by continuous monitoring of power apparatus. Mainly insulators are the integral part of the power system. Among them composite insulators are essential for the…
The basic possibility is studied for producing biocompatible oxide coatings on periosteal osteofixation devices from stainless steel using the air-thermal oxidation method. The properties of the coatings are studied at different temperature modes of oxidation. Steel osteofixation devices with air-thermal oxide coating…
Thermodynamics of (001) epitaxial ferroelectric films completely relaxed due to the formation of elastic domains with a three-domain architecture is presented. The polydomain structure and electromechanical response of such films are analyzed for two cases corresponding to immobile and mobile elastic domain walls. It…
Some indole derivatives are investigated as corrosion inhibitors for nickel in 0.5 M HCl solution using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. A significant decrease in the corrosion rate of nickel was observed in the presence of investigated indole derivatives. Poten…
In this paper, Ag-Zn alloy are dealloyed in 0.1M H2SO4 at a low temperature (2°C) to fabricate nanoporous silver and the dealloying kinetics has been systematically investigated. Comparison of the polarization curve of Ag-Zn alloy in 0.1M H2SO4 at room temperature and 2°C shows that lowering temperature can significan…
In the present work, we have synthesized ZnO nanostructures by sol-gel method in air at different selected sintering temperatures ranging from room temperature to 400 0 C and studied their structural, optical and ferroelectric properties. The synthesized samples are characterized by X-ray diffractrometer for structura…
In this study, a tempered martensitic matrix was obtained in a low carbon steel, by applying austenization, quenching and tempering heat treatments. After austenization at 1000°C for 30 minutes, steel samples were quenched in water and then tempered at 200, 540 and 600°C for 30 minutes. Hardness measurements were done…
Undoped and Ga-doped In 2 O 3 nanowires (NWs) were synthesized by using vapor-liquid-solid (VLS) growth and were characterized as transparent conductive oxides for future generations of optoelectronic devices. A low amount of Ga was obtained due to the low solubility of Ga 2 O 3 in In 2 O 3 . The incorporation of Ga i…
Non-monotonous thickness-dependent ferroelectric and ferroelectric-ferroelastic domain size scaling behaviors were revealed in ferroelectric films, including three distinct regions: (I) a classical ½ power law relationship for thick films, (II) a deviation from the ½ scaling relationship for an intermediate thickness…
Abstract The process of design of building composites, like concrete is a complex one and involves many aspects like physical and mechanical properties, durability, shielding efficiency, costs of production and dismantlement etc. There are plenty of parameters to optimize and computer tools can help to choose the best…
Recent research have shown that the Wavelet Transform (WT) can potentially be used to extract Partial Discharge (PD) signals from severe noise like White noise, Random noise and Discrete Spectral Interferences (DSI). It is important to define that noise is a significant problem in PD detection. Accordingly, the paper…
Abstract The synthesis of [Bi 38 O 45 (OMc) 22 (C 8 H 7 SO 3 ) 2 (DMSO) 6 (H 2 O) 1.5 ]·2.5H 2 O ( 1 ·2.5H 2 O) (OMc—methacrylate) and [Bi 38 O 45 (HSal) 22 (OMc) 2 (DMSO) 15 (H 2 O)]·DMSO·2H 2 O( 2 ·DMSO·2H 2 O) (Hsal—salicylate) starting from [Bi 38 O 45 (OMc) 24 (DMSO) 9 ]·2DMSO·7H 2 O and sodium 4-vinylbenzenesulf…
The complexing of polycation chitosan and polyanion sulphoethyl cellulose during the formation of polyelectrolyte simplex membranes using the layer-by-layer deposition of a solution of one polyion on a gel-like film of another one has been studied. The structural characteristics of the multilayer composites and their…
Temperature dependences of the heat capacity of G-3(D4) and G-6(D4) carbosilanecyclosiloxane dendrimers are studied for the first time by precision adiabatic vacuum and differential scanning calorimetry in the range of 6 to 350–450 K. Physical transformations in the investigated temperature range are observed and thei…
The reaction behavior of CuAlO 2 during the annealing at high temperatures was investigated. The relationship between thermoelectric properties including electrical resistivity, excess oxygen doping and decomposition of CuAlO 2 was discussed. The evolution of CuAlO 2 compact during the annealing mainly included excess…
The ability to site‐selectively modify micro‐ and nanosized particles has allowed for directed self‐assembly in two and three dimensions. Site‐selective modification of particles can be a complicated task requiring the pre‐organization of particles or enhanced particle fabrication methods. The aluminum silicate, zeoli…
With the appliance of the development of modern technologies in the areas of surface engineering and related applications, the definition of the term hard coatings can be extended by the Plasma Assisted Chemical Vapor Deposition (PACVD) method. This is a cost-effective plasma deposition process, which can be used to i…
In the present investigation, novel poly(amide-imide) (PAI)/titanium dioxide (TiO2) bionanocomposites were prepared via ultrasonic irradiation process using TiO2 nanoparticles modified by γ-aminopropyltriethoxyl silane. Optically active PAI containing L-isoleucine natural amino acid was synthesized in tetrabutyl ammon…
Iron oxalate hydrate (FeC2O4·2H2O) microrods and microtubes are successfully synthesized under room temperature by a co-precipitation method. We also explore the formation mechanism of the microstructure. Interestingly, after electrochemical measurements of iron oxalate hydrate micromaterials, it indicates that FeC2O4…