Materials Literature
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The authors present the use of electron beam induced deposition (EBID) for direct wiring of carbon nanotubes (CNTs). Since this technique is a maskless, direct patterning method, EBID is applicable to suspended nanotubes potentially integrated in predefined nanoelectromechanical systems (NEMS). The authors developed a…
The results of both experimental studies and molecular dynamics simulations indicate that crystals exhibit strong size effects at the sub-micron scale: smaller is stronger. Until recently, experimental aspects of nano-scale deformation involved the effects of strain gradients, constraints of neighboring layers, grain…
Electrical breakdown of short (∼50nm) multiwalled carbon nanotubes (MWNTs) is studied utilizing mechanically controllable break junction technique with gold electrodes. Measurements of the conductance-bias characteristics near the breakdown point revealed two different types of breakdown behavior for the short MWNTs.…
The ethylene–propylene–diene terpolymer (EPDM) foam article was prepared by mixing a compound in a two roll mill, extruding the compound through a cold feed extruder and finally vulcanising the extrudate in a circulating hot air oven. The blowing kinetics of EPDM compounds was studied using a moving die rheometer, and…
Abstract Dynamically vulcanized nanocomposite thermoplastic vulcanizates (NC‐TPVs) based on ethylene‐propylene‐diene rubber (EPDM) and melt intercalated hybrid of poly(propylene) (PP)/maleic anhydride grafted poly(propylene) (PP‐g‐MA) with organo‐modified montmorillonite (org‐MMT) were prepared. X‐ray diffraction (XRD…
Fisher model of intercrystalline diffusion is refined based on an analysis of previously obtained results of emission Mössbauer studies of grain boundaries. It is shown that under conditions of dominating intercrystalline diffusion, the existence of monatomic near-boundary layers of equilibrium composition should be t…
The index of refraction in the isotropic phase, n, and in the mesophase, n o , for pure 5CB and 8CB liquid crystals, as well as their binary mixtures, were measured as a function of temperature. The related parameters, namely the orientational order parameter (S), relative polarizability anisotropy (ζ), and molecular…
The ordering in nanocrystalline Fe100−xPtx (x=40, 45, 50, and 55) alloys prepared by mechanical ball milling was studied by neutron powder diffraction during in situ heat treatment and differential scanning calorimetry. Independent of milling time and stoichiometry the onset of ordering is at around 300°C. For alloys…
We describe a new UV-Vis absorption setup designed to measure with improved sensitivity the absorption spectra of size-selected small metal clusters embedded in rare gas matrices. We aim at studying the electronic structure of clusters of different materials and their interaction with the matrix. The design, construct…
Au nanoparticles supported on Al2O3 were prepared by deposition-precipitation of HAuCl4 with different precipitation agents NaOH and urea. The samples were investigated by means of different characterization techniques such as X-ray photoelectron spectroscopy (XPS), X-ray absorption spectroscopy (XAS), and transmissio…
The homologous series of (S)-4″[6-(alkanoyloxy)hexyl-1-oxy]-4-(1-metylheptyloxycarbonyl)terphenyl, (S)-4″[6-(perfluoroalkanoyloxy)hexyl-1-oxy]-4-(1-metylheptyloxycarbonyl)terphenyl and (S)-4″[6-(perfluoroalkanoyloxy)hexyl-1-oxy]-2,3-difluoro-4-(1-metylheptyloxycarbonyl)terphenyls have been recently synthesised. Their…
The aim of this work is to investigate electronic structure, magnetic properties and electrical resistivity of Fe(2)V(1-x)Ti(x)Al Heusler alloys. Numerical calculations give a pseudogap at the Fermi level for the majority-spin band of Fe(2)TiAl and a magnetic moment larger than 0.9 μ(B), whereas the ground state of Fe…
Ferrite process has been established to be of a powerful method for treating heavy metal wastewater. Although the process can be used extensively, its application is limited by its high cost. This work explores the performance of a catalyst for CO conversion, which is generated from the sludge of the ferrite process.…
Compact polymers are self-avoiding random walks that visit every site on a lattice. This polymer model is used widely for studying statistical problems inspired by protein folding. One difficulty with using compact polymers to perform numerical calculations is generating a sufficiently large number of randomly sampled…
The mechanisms of silicon nanocrystal structure formation in amorphous Si films have been studied for a relative Ni impurity content varying between 0.1 and 10at.%, i.e., from a Ni doping range to the Si–Ni alloy phase. The films, deposited by the cosputtering technique at 200°C, were submitted to isochronal (15min) a…
Abstract The thermodynamic properties of the Al–Na and Na–Al–H systems have been assessed by combining the “calculation of phase diagram” approach with first-principles predictions. The Gibbs energies of the individual phases were thermodynamically modeled, where the model parameters were obtained from best fit optimi…
Vladimir F. Petrova* a LC Works , Camberwell, Australia * LC Works, 6/68 Brinsley Road, Camberwell, VIC, 3124, Australia E-mail: lcworks@hotmail.com The effect on the physicochemical and electro-optical properties of introducing the pyrimidine ring into the molecular structure of calamitic liquid crystals is discussed…
Highly oriented Al-doped ZnO ceramics were prepared by a high magnetic field method and their anisotropic thermoelectric properties were examined. The c -axis oriented specimen along the ab -plane showed a higher electrical conductivity compared to the a -axis and non-oriented specimens as a result of high electron mo…
Effects of Postdeposition Annealing on Electrical Properties of Mo-Doped Indium Oxide (IMO) Thin Films Deposited by RF Magnetron Cosputtering, Yamada, Naoomi, Tatejima, Tsukasa, Ishizaki, Hiroki, Nakada, Tokio
Quantitative polymerase chain reaction (qPCR) assays were developed to detect and quantify bacteria and some critical sub-populations related to gas and oil pipeline corrosion. The 16S rRNA, dissimilatory sulfite reductase, nitrite reductase, and methyl-coenzyme M reductase genes were targeted for the quantification o…