Materials Literature
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Using scanning electron microscopy and x-ray phase analysis techniques, it is shown that the C14-type Laves phase with a wide homogeneity reaching the AB2.3 stoichiometry is the main phase in the Zr0.5Ti0.5NiyV0.5Mn x alloys, where y = 0.8–1.4 and x = 0.1–1.7. With the increase in the nickel and manganese contents and…
Erbium polyphosphate Er(PO 3 ) 3 is synthesized at a temperature of 270°C from a polyphosphoric acid melt containing cerium, erbium, and phosphorus in the atomic ratio Cs: Er: P = 5: 1: 15. The crystal structure of the Er(PO 3 ) 3 polyphosphate synthesized is determined. The framework structure of the Er(PO 3 ) 3 poly…
Abstract Soil clay minerals in recent natural polders react on a human timescale in response to local environmental conditions. With increasing age, the mineral reaction leads to the dissolution of the chlorite component and a composition change of the different illite-smectite mixed-layer minerals (I-S MLMs): i.e. sm…
It is shown that in the paper by S. Hrabar, J. Bartolic, and Z. Sipus (2005), the negative permeability of the modified split ring resonators, which are used to obtain the miniaturized waveguide, is not excited, and there is no negative permeability metamaterial
The unique electronic, mechanical and chemical properties of carbon nanotubes make them most promising candidates for the building blocks of molecular-scale machines, and nanoelectronic devices. On the other hand, highly hydrophobic films are being actively considered in silicon based micro-electromechanical systems,…
Options for fuel cycle technology improvement have strongly regained attention lately with the revival of nuclear energy production interests and plans for next generation nuclear systems. Various fuel forms, geometries and production paths are being looked at. Within the FUJI collaboration program among Japan Atomic…
The engineering issues of plastisol preparation, composition, properties, and application are considered. Special attention has been paid to the adhesion characteristics of plastisol coatings.
Abstract Data analysis relating to a fabric’s compression properties can only be carried out when the limits of compression are known. The study of the compressibility of woven fabrics was initiated with Peirce, Kemp & Hamilton’s approach to circular yarns and flattened yarns of a fabric under pressure. The fit of…
Ga doped ZnO (GZO) thin films were deposited on polymer polyethylene terephthalate (PET) substrates with a ZnO buffer layer using a radio frequency (RF) magnetron sputtering technique and the effects of the buffer layer thickness on the microstructure, and electrical and optical properties of the GZO films were invest…
Abstract Atomic scale simulation techniques have been employed to study the intrinsic defect processes of a range of bixbyite sesquioxides using a transferable set of interatomic potentials. The efficacy of the approach is demonstrated through comparison of the predictions to previous experimental and theoretical (den…
Individual carbon nanorod was fabricated on a tungsten needle tip by electron beam induced deposition. Precursor was phenanthrene (C 4 H 10 ) and deposition experiment was done using a scanning electron microscope at room temperature. Tungsten needle tip together with the as-deposited nanorod was mounted inside a spec…
BACKGROUND: The lysine, threonine, and methionine biosynthetic pathways share the three initial enzymatic steps, which are referred to as the Common Pathway (CP). In Escherichia coli three different aspartokinases (AKI, AKII, AKIII, the products of thrA, metL and lysC, respectively) can perform the first step of the C…
Abstract To confirm the observation that [Gd(ttda)] derivatives have a significantly shorter residence time τ M of the coordinated H 2 O molecule than [Gd(dtpa)], four new C‐functionalized [Gd(ttda)] complexes, [Gd(4‐Me‐ttda)] ( 1 ), [Gd(4‐Ph‐ttda)] ( 2 ), [Gd(9‐Me‐ttda)] ( 3 ), and [Gd(9‐Ph‐ttda)] ( 4 ), were prepare…
The positive temperature coefficient resistance (PTCR) effects of Sm-doped BaTiO 3 have been studied in terms of annealing temperature, annealing time, and additive content. (Ba 0.85- x Ca 0.15 Sm x ) 0.997 TiO 3 samples were prepared by a liquid mix method developed by Pechini. The specimen was sintered in a reducing…
The Oxide Electrowinning method has been studied as one of the candidate dry reprocessing concepts of the future fuel cycle systems. On the MOX co-deposition process, the main process of that method, some fundamental experiments have been performed to confirm its feasibility. In the experiments, several parameters wer…
Previously we have proposed a model for the acetate-enhanced corrosion of carbon steel in oilfield brines based on acetic acid (C2H4O2, HOAc) as the dominant reactant in the cathodic reactions leading to corrosion and suggested that corrosion rates may be predicted from a knowledge of the equilibrium composition of th…
The use of alternate cathode materials with improved performance and without any chemical reaction with adjoining electrolyte is required for a reduction in operating temperature of SOFC from 1273 K to about 1073 K (lTSOFC). Cobalt containing perovskite oxides such as LaCoOJ tend to exhibit a higher ionic conductivity…
Flame synthesis of carbon nanostructures including nanotubes on galvanized steel was investigated utilizing laminar diffusion flames of different types of fuel. Methane (CH4), propane (C3H8) and acetylene (C2H2) were used as fuels. Distinctive carbon nanostructures were produced depending on fuel types and fuel flow r…
Isotropic giant negative magnetoresistance (from −42 to −52%) in magnetic fields of 6–9 kOe is revealed for the first time when studying kinetic phenomena and the magnetoresistive effect in silver sulfoselenide ( n -Ag 4 SSe) in the vicinity of a first-order phase transition. The electron transport and the magnetoresi…
Abstract Initial surface oxidation and nanoscale morphology on Cu{100}, Cu(Ag) and Ag/Cu{100} have been investigated in situ by X‐ray photoelectron spectroscopy (XPS), X‐ray induced Auger electron spectroscopy (XAES) and the inelastic electron background analysis as a function of oxygen exposure at 3.7 × 10 −2 and 213…