Materials Literature
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Zn Ga 2 O 4 nanowires were grown via a low-pressure chemical vapor deposition method, and the electrical transport properties of these nanowires were investigated. It was found that the current across individual nanowires was several picoamperes at a bias of 30V, and the current was insensitive to oxygen and temperatu…
The synthesis of silicone polyesteramides was successfully performed in bulk at 70 °C via a biocatalytic route. Immobilized Candida antartica Lipase B (Novozym 435, N435) was used as catalyst under mild conditions to perform the polycondensation reaction using various feed mole ratios of diethyl adipate (DEA), 1,8-oct…
Gadolinium (Gd) has been identified as a possible causative agent of an emerging cutaneous and systemic fibrosing disorder, nephrogenic systemic fibrosis (NSF), which can cause serious disability and even death. To date, there are only two known associations with this disorder--renal insufficiency and Gd enhanced magn…
The identity and reversibility of the elementary steps required for catalytic combustion of dimethyl ether (DME) on Pt clusters were determined by combining isotopic and kinetic analyses with density functional theory estimates of reaction energies and activation barriers to probe the lowest energy paths. Reaction rat…
The electrochemistry of a poly(anilineboronic acid)/carbon nanotube composite was studied in the presence of dopamine and ascorbic acid. To understand the binding affinity of dopamine and ascorbic acid to the boronic acid functional groups in the composite, the association constants between the diol groups in dopamine…
We investigated polymer-binding 7-mer peptides that recognize differences in the polymer stereoregularity of all-purpose poly(methyl methacrylate)s (PMMAs) with simple chemical structures. Quantitative surface plasmon resonance measurements detected association/dissociation processes of the peptides against PMMA film…
The adsorption and reaction of NO 2 on a thick (>30 ML), pure BaO film deposited onto an Al 2 O 3 /NiAl(110) substrate were investigated using temperature-programmed desorption, infrared reflection absorption spectroscopy, and X-ray photoelectron spectroscopy techniques. For the first time, it was clearly demonstrated…
Abstract Four intercluster compounds constituted of different gold clusters and polyoxometalates have been crystallized and their crystal structures been determined. Two crystal structures comprise the new gold cluster [Au 9 (dpph) 4 ] 3+ (dpph = 1,6‐ bis(diphenylphosphino)hexane) and an octamolybdate anion, but diffe…
Magnetic properties and magnetic entropy change of the NaZn13-type La0.5Pr0.5Fe11.5Si1.5Cx compounds have been investigated. Both the lattice parameter and the Curie temperature increase linearly with increasing carbon concentration. The maximum hysteresis loss at TC reduces remarkably from 94.8J∕kg for x=0to23.1J∕kg…
Effects of blending sequence on properties of a ternary polyolefin blend based on isotactic polypropylene (PP) have been studied. The ternary blend was composed of three components: PP, metallocene ethylene–octene copolymer (mPE) and high density polyethylene (HDPE), with PP as matrix, mPE and HDPE as toughened filler…
The drawing textures of aluminum, copper, gold, silver, and Cu-7.3% Al bronze wires are approximated by major <111>+minor <100>, except silver wire, which can have the <100> texture at extremely high reductions. The <111> component in the drawing textures of aluminum, copper, gold, and silver transform to the <100> co…
Abstract Although the understanding that corrosion is an electrochemical process has been known for almost a century, the exploitation of electrochemical techniques for corrosion testing has largely occurred in the past four decades. The development of standard conventions in ASTM G 3 and calculation procedures in AST…
In this study, we show that colour centres can be produced by irradiating calcium oxide with soft X-rays from a synchrotron radiation source. Using the X-ray excited optical luminescence (XEOL) technique, two colour centres, F-centre, and F + -centre can be identified. These colour centres emit photons at characterist…
A three-layer optical model is proposed for the IR radiator based on SiC with the help of which the SiC emissivity is calculated at a temperature 1650 K and the bands in the 9–25-μm region are interpreted.
Pb(Zr x Ti 1- x )O 3 (PZT) thin films with different thicknesses and compositions near the morphotropic phase boundary (MPB) were deposited on a pseudocubic LaNiO 3 (LNO) thin film electrode by chemical solution deposition (CSD) in order to elucidate effect of film thickness on the electrical properties of the resulta…
The focus of this article is on the plasma-etching behavior of films of composite materials consisting of two randomly distributed phases with different etch rates. Two etching modes are examined as follows: 1) with anisotropic flux of ions (sputtering) and 2) with isotropic flux of etchants (chemical etching). First,…
By means of numerical simulation in the framework of the 2D axisymmetric problem of continuum mechanics, the penetration of elongated porous strikers into a steel obstacle under hydrodynamic conditions (the velocity of the striker at collision is several kilometers per second) is studied. It is found that the penetrat…
Polyoxymethylene (POM)/carbon nanotubes (CNTs) (2 : 1 by weight) composite powders were prepared by a solid mechanochemical method with a self-designed pan type mill equipment. Photos of SEM and TEM show that the average size of composite powder is several micrometres, and the CNTs adhered to the surface of POM powder…
Conducting transparent polymer materials were made by applying boron-doped single-walled carbon nanotubes to the surfaces of glass and flexible polyethylene terephthalate film substrates. Optical transmission and sheet resistance measurements showed that the boron-doped coated samples had sheet resistances of ∼7kΩ∕◻ a…
The number of various existing fabric materials for different usages is unlimited. Therefore it is important to judge each textile material regarding quality and suitability before any manufacturing process. Related fabric characteristics can be subjectively assessed or objectively measured. A new field of research tr…