Materials Literature
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In this research, Co-doped SnO2 thin films were prepared by chemical spray pyrolysis technique using SnCl4.5H2O and CoCl2.6H2O, with impurity percentage are (0%-3%-6%-9%) on glass substrates preheated at (450oC) with spray rate 5sec./1min, and thickness (400nm). The investigation of (XRD) indicates that the (SnO2) fil…
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This work investigates the dehydrogenation of TiH2 powder during isothermal heating at 600°C using the static x-ray scans of high temperature x-ray diffraction (XRD). As-received TiH2 powder with a particle size of 5 μm and purity of 99.1% was used for this measurement. With increasing temperature, phase transformatio…
The luminescence of rare earth composite micelles was measured in different polarity. The polarity of complexes was changed with the molar ratios of block copolymers, trivalent europium (Eu (III)) ions and 1,10-phenanthroline (Phen). When 4-vinyl pyridine (4VP) coordinated with central ions Eu (III), the improved asym…
Bei der Alzheimer-Krankheit kann das am Amyloid-beta-Peptid gebundene, redoxaktive Kupfer reaktive Sauerstoffspezies über einen wenig bevölkerten redoxkompetenten Zustand produzieren. In ihrer Zuschrift auf S. 11316 ff. geben P. Faller, F. Collin et al. einen Einblick in die Koordinationssphäre dieses Zustands. Kupfer…
The electrochemical behavior of 304SS stainless steels has been investigated in acidic and neutral media at 22 oC as a function of molybdate ions concentration. Corrosion techniques that have been used include potentiostatic polarization, polarization resistance, and cyclic polarization measurements. Measurements indi…
Starre und gut wasserlösliche Dinitroxide (AMUPol und PyPol) wurden als Polarisationsreagentien für die dynamische Kernpolarisation (DNP) entwickelt. O. Ouari, P. Tordo et al. beschreiben in ihrer Zuschrift auf S. 11058 ff., wie die Verwendung dieser Reagentien zu einer bisher unerreichten Empfindlichkeit in der Festk…
Procedures for welding duplex stainless steel conventional arc welding methods were studied by several authors and nowadays and recently they are well handled. Todays practice requires application of processes providing excellent weld joint quality, quick production and possibility of automation. Therefore the applica…
Controlled impact may be done if the source of additional force is placed on one of the impact bodies and this force is acting during the impact time. The use of Industrial Rocket Engine (IRE), produced in Bulgaria, enables the controlled impact technology. A laboratory set up was created in order to explore the contr…
Silicon carbide reinforced copper matrix (Cu-SiCp) composites fabricated via the conventional powder metallurgy methods have inferior thermophysical properties due to the weak bonding between the copper matrix and the SiCp reinforcement. In order to improve the bonding between the two constituents, the SiCp were coppe…
The stress and lattice constants in zinc oxide (ZnO) nanoparticles play a major role in determining the distortions that occur in the crystal during the preparation of the sample as a result of exposure to several factors, such as external strain, temperature, pressing, and structural defects (oxygen vacancies and zin…
Since the discovery of ferrocene, many one-dimensional metallic sandwich molecular wires have been identified. However, most of the known systems are assembled from organic molecules. Suffering from many drawbacks has, however, hampered their widespread applications. With the goal of breaking this logjam, we provide a…
The self-organized hollow TiO2 hemisphere with a height of 130 nm and a diameter of 200 nm was formed. Highly ordered TiO2 nanotube arrays of 200-nm pore diameter and 700-nm length were grown perpendicular to a FTO substrate by infiltrating the alumina pores with Ti (OC3H7)4 which was subsequently converted into anata…
The development of precipitate during ageing treatment of A319 alloy contributed significantly to the alloy strengthening mechanism. Two solution treatment temperatures which were set at 510°C and 525°C were subjected onto the different groups of A319 alloy samples and followed by artificial ageing process at 180°C. S…
Polyurethane (PU)/montmorillonite (MMT) composite foam were synthesized with reaction of diisocyanate with polyester polyol by a batch process. In this research, water was used as the blowing agent with TEGOSTAB B8407 and TEGOAMIN PMDETA as the surfactant and catalyst, respectively. Clay was used as filler for composi…
This paper mainly represent the simple and effective method to design the chrome mask for patterning the platform for zinc oxide nanowire growth. The most essential aspect that need to be considered in designing the chrome mask is the critical dimension of the mask. Hence, the mask is design by using AutoCAD software…
Stone Wales (SW) defect is one type of topological defect on the CNT, in this study we performed first principles calculations of SW defects in armchair edge (5,5) carbon nanotube (CNT) by the density functional theory (DFT). Two different defects were studied such as longitudinal and circumference types. Our calculat…
This paper focused in details about dielectric properties of BT with different stoichiometry. In this research, BT was synthesis by solid state reaction between TiO2 and BaCO3 at constant sintering temperature of 1350 °C. Five different ratio of BT was characterized by using SEM, XRD, and IS. There have production of…
The presence of carbon dioxide (CO2) and water in the fluid can cause severe internal corrosion in the pipelines. This study aims to observe corrosion behavior during the changes in flow rate and acidity conditions in order to obtain the relationship between the parameters by the measured corrosion rate. Corrosion rat…
Nanotechnology is one of the key technology had been developed since in all fields including textile industries for medical, hygienic, and technical textiles. Particle size with nanohad been indicated in particular for the application of controlled release material for functional textiles. TiO2 nanopowder has remarkab…