Materials Literature
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Article Crystal structures of tetrastrontium dibismuthide oxide, Sr4Bi2O, and tetrabarium dibismuthide oxide, Ba4Bi2O was published on December 1, 2011 in the journal Zeitschrift für Kristallographie - New Crystal Structures (volume 226, issue 4).
Maxwellite NaFe(3+)(AsO4)F is an arsenate mineral containing fluoride and forms a continuous series with tilasite CaMg(AsO4)F. Both maxwellite and tilasite form a continuous series with durangite NaAl(3+)(AsO4)F. We have used the combination of scanning electron microscopy with EDS and vibrational spectroscopy to chem…
Models such as the Ising and Potts systems lend themselves well to simulating the phase transitions that commonly arise in materials science. A particularly interesting variation is when the material being modelled has lattice defects, dislocations or broken bonds and the material experiences a Griffiths phase. The da…
The purpose of this study is to clarify the effect of dry and wet processes on the mechanisms of edge corrosion of hot dip 55 mass% Al–Zn alloy coated steel sheet. The corrosion tests employed were continuous salt-spray tests and cyclic corrosion tests using NaCl solution or artificial seawater. It was confirmed that…
The radio frequency (RF) inductively coupled plasma technique is a new and promising synthesis method of single-walled carbon nanotubes (SWCNTs) at large scales, for industrial and commercial applications. In this method, a mixture of carbon black and metal catalysts is directly vaporized by the RF plasma. Subsequentl…
The introduction of vacancies in palladium (Pd) was found to be effective for an increase in the initial hydrogen absorption reaction rate in a previous study. And it also has been reported that the initial hydrogen absorption reaction rate depends strongly on the surface conditions of metals. For the surface modifica…
Inorganic polyphosphate (PolyP), a bioactive polymer with multiple functions, plays a key role in biomineralizaion and phosphorus homeostasis in yeasts. After phosphate starvation, the cells of Saccharomyces cerevisiae restored their pool of PolyP during the first 30 min of incubation in the media containing phosphate…
In this paper, we investigated the effect of injection molding parameters such as melt temperature, mold temperature, injection speed and holding pressure on the mechanical properties of low density polyethylene reinforced with 2.5 wt% multi-walled carbon nanotubes. The Taguchi methodology with four factors and two le…
A coarse-grained approach with enhanced representation of amino acid (involving four components, i.e. a central alpha carbon and its side group along with C and N terminals) is used to study the multi-scale assembly of an antimicrobial peptide (KSL) in an explicit solvent (in a scale-down hierarchy of Eby et al. [Phys…
Acoustic emission is defined as the ultrasonic wave phenomenon due to rapid release of strain energy in the solid materials. This paper aims at the extension of acoustic emission method for certain and effective analysis that can adapt to material research field. The rise time of two kinds of martensitic transformatio…
Graphene is a two-dimensional, single atomic layer carbon structure with many unique physical and chemical properties. In this article, I will focus on electron transport through graphene, both incoherent and coherent, the control of the current through external electric fields, and the realization of high frequency t…
Site-directed spin-labeling with continuous wave electron paramagnetic resonance spectroscopy was used to monitor autoproteolysis of HIV-1 protease, an enzyme essential for viral maturation. Two protein constructs were examined, namely subtype F and the circulating recombinant form CRF01_A/E. As the protease undergoes…
The micro structural morphological investigations of the laser exposed samples of Platinum are presented. Q-Switched Nd: YAG laser (1064 nm, 1.1 MW, 9 - 14 ns) represented by Gaussian profile, power density 3 × 1015 Watt/m2 and focal spot size 12 μm is used to irradiate the targets (4 N, 1 × 1 × 0.3 cm3). Surface modi…
Compared with the Al84Ni10Ce6 alloy, the glass forming ability (GFA) of Al84Ni10(Ce3La3) was improved and the melt fragility was decreased through the method of La addition (similar to Ce element), which is in contrary to the conventional rules of dissimilar elements (large atomic size differences) addition. This phen…
In the 1990s, GE’s Dry Low NOx (DLN) technology helped E-class industrial gas turbines with the DLN1 combustor achieve single-digit NOx emissions. Today more than 730 DLN1 systems are installed worldwide. Recent advances in the technology achieve ultra-low single-digit NOx emissions well below 5 ppm. This paper summar…
The synthesis of rare-earth doped Lu4Hf3O12 phosphor nanopowders was achieved through the combustion of metal–organic acetate–citrate amorphous gels. Their crystalline structure and morphology have been characterized by X-ray diffraction and electron microscopy. Under UV and X-ray excitation a bright luminescence of t…
Conformational polymorphism has previously been observed in 2,2-dichloro-4,4:6,6-bis(2,2′-dimethlypropane-1,3-dioxy)-cyclotriphosphazene and the crystal structures of two forms were reported. In that study the melting points of both forms (α and β) were reported as 211–212 °C and no investigation was made on the stabi…
This paper presents a comparative study on the atmospheric corrosion of steel, at two sites, in Iran. Corrosion rate values, time of wetness and the level of pollutants, namely of SO2 and chlorides, in both atmospheres, were determined for the first year of exposure in order to establish the aggressiveness of the atmo…
The hydrolysis properties of peptide nanospheres consisting of a high-density poly(ethylene glycol) (PEG) brush layer and a poly(L-phenylalanine) (PPhe) core were evaluated in relation to their self-assembled nanostructure. To clarify the effect of the self-assembled structure of the nanospheres on their hydrolysis pr…
The corrosion resistance of three stainless steel materials, namely, stainless steel (SS), stainless steel electroplated with zinc (SS-Zn) and stainless steel electroplated with zinc followed by blue passivation (BP), has been evaluated in an aqueous solution containing 3.5% NaCl. A potentiodynamic polarization study…