Materials Literature
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The structure of the Eu 2+ and Sr 2+ DOTA 4- (1,4,7,10-tetraazacyclododecane-1,4,7,10-tertraacetate), DTPA 5- (diethylenetriamine- N, N, N ‘, N ‘ ‘, N ‘ ‘-pentaacetate), and ODDA 2- (1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-7,16-diacetate) complexes were characterized using XAFS in the solid state and in aqueous s…
A nuclear desalination system has been developed through a thermal coupling of the MED–TVC process and SMART – an integral type of advanced reactor producing rated thermal power of 330 MW. The integrated SMART desalination plant is consists of four units of the MED–TVC process to produce 40,000 m³/day of potable water…
The relative alteration in micelle size and micelle shape brought about by two sets of specific solutes have been investigated by mass density measurements at constant composition and temperature. The mass density of the first set of solutes, phenol, benzene, cyclohexanol and cyclohexane, was measured in the same host…
In order to understand the role of TiO2 in the deactivation mechanism of an active RuO2?TiO2 coating, an additional TiO2 layer was introduced in the support coating interphase of regular Ti//[RuO2?TiO2 anode in one case and on the surface of the coating in the other. The electrochemical behavior of these, with TiO2 en…
A novel triple decker uranium complex has been prepared by refluxing tetraphenylporphyrin and uranyl acetate in phenol or benzonitrile, and its chemical transformations have been studied.
The isotropic to nematic(IN), nematic to cholesteric(NCh), cholesteric to smectic-A (ChA) and smectic-A to smectic-C* (AC*) phase transition temperatures exhibited by a room temperature ferroelectric liquid crystal RTFLC, viz., 2Cl.BAAP.180-BBP are determined by the observed anomaly in differential permittivity, d l '…
Oxidation kinetics of hexagonal boron nitride powder in 8% O2-20% H2O/balance argon was investigated at 900-1100°C. Paralinear weight change curves were observed. The rate constant of BN oxidation in 8% O2-20% H2O/balance argon was almost the same as that in 20% H2O/balance argon at the temperature below 1000°C, while…
Increasing demands on the quality and specific properties of polymers imply increasing demands on the mineral fillers used in composite materials. They are expected not only to reduce the cost of production but also improve the mechanical properties of the composites or endow them with new features, e.g. thermostabili…
Chitosan (CHI) has been complexed with polyacrylic acid (PAA) in the presence of hydroxyapatite (HAP) to prepare composites intended for bone substitute applications. Thermogravimetric analysis of the composite showed that the presence of HAP had little effect on the degradation profile of the polyelectrolyte complex…
Yttria stabilized zirconia (YSZ) electrolytes, subjected to high current densities, develop significant damage. This paper characterizes the damage that develops from the anode side, in YSZ used in an oxygen pump configuration. The damage is in the form of vacancy loops, precipitates formed on dislocations, pore devel…
Effect of B addition on the Si and Mn selective surface oxidation behavior of low carbon steels was investigated, by glow discharged spectroscopy, secondary electron microscopy, transmission electron microscopy, and auger electron spectroscopy, after recrystallization annealing. The oxides composed mainly of Si and Mn…
Grain boundary resistivity in zirconia systems can significantly affect total conductivity below 800°C, The influence of starting powders on the total conductivity is investigated for the 8 mol% yttria-stabilized zirconia polycrystals prepared from powders synthesized by three different methods and from two commercial…
The photophysical properties of polymer-dispersed liquid crystal systems, containing naphthalimide dye as fluorescent units are reported. Investigations have been carried out on some 1,8- naphtalimide derivatives both in isotropic and anisotropic media, and their photophysal properties have been described. The orienta…
Reduction of Mercury Loss in Fluorescent Lamps Coated with Thin Metal-Oxide Films , Hildenbrand, V. D., Denissen, C. J. M., van der Pol, A. J. H. P., Hendriks, A. H. C., van der Marel, C., Snijders, J. H. M., Tamminga, Y., Brongersma, H. H., Viitanen, M. M.
In this study, tensile and abrasive wear performances of two different quality as-cast ductile irons have been examined at various temperatures between 25 and 600°C. Tensile tests were carried out with a strain rate of 3×10−4/s. Wear tests were performed under a compression stress of 5.7 N/mm2, by rubbing samples on 1…
In this research, the spheroidal graphite cast iron melt was produced by using 7 kinds of steel scraps, the shredder scrap, the surface treated steel sheets, the magnetic steel sheets, the high strength steel and others. The influences of the steel scraps on microstructures and mechanical properties were studied. Zinc…
In order to understand the role of TiO2 in the deactivation mechanism of an active RuO2–TiO2 coating, an additional TiO2 layer was introduced in the support coating interphase of regular Ti//[RuO2–TiO2 anode in one case and on the surface of the coating in the other. The electrochemical behavior of these, with TiO2 en…
The X-type dimer of lithium phthalocyanine adopts a significantly different electronic structure from those of the α- and β-type dimers, which leads to a different absorption spectrum and magnetic properties for the X-polymorph compared to those of the α- and β-polymorphs.
This book discusses the fundamentals and recent advances in fatigue analysis. It contains special emphasis on crack mechanics and fatigue design of structural details. The book is intended for engineers, research staff, professors and graduates engaged in fatigue-preventing design and survey, fatigue studies of materi…
unctionalization of polyethylene has been performed by means of homogeneous grafting reactions of maleic anhydride initiated by free radicals. Benzoyl peroxide, azobisisobutyronitrile, and dicumylperoxide have been used as free radical sources and their efficiency has been compared. The effects of the solvent, time an…