Materials Literature
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Reproducibility of plasma etching processes is a critical issue for metal/high-k gate stack patterning because of progressive modification of the reactor wall conditions. Periodic dry cleaning of the etching chamber in appropriate plasma chemistry allows the achievement of acceptable reproducibility. The authors have…
The polythermal (over the temperature range 20–80°C) solubility of fullerene bromo derivatives C 60 Br n ( n = 6, 8, 24) in several solvents ( o -xylene, o -dichlorobenzene, n -decanol-1, and enanthic acid) was studied. The corresponding solubility polytherms are given.
Abstract Low and limited hardenability (LH) steels are plain carbon steels characterized by a low content of alloying elements (Cr, Ni, Mo, W, V, etc.). The use of LH steels with an intensive quenching method allows full elimination of the carburization process for a variety of steel parts, such as, gear and bearing p…
A nanoscale patterning approach for ceramic oxides, based on the combination of electron beam lithography and liquid precursor (so-called soft-electron beam lithography, soft-eBL), is elaborated in the context of control over “internal microstructure”. Soft-eBL synergistically combines the traditional top-down approac…
A description of mixtures, including matter diffusion and suspensions, is analyzed from a thermodynamic viewpoint with internal variables. In order to consider dissipative effects due to thermo-diffusion we introduce a set of N independent scalar internal variables, which we denote by γ A . The behavior of the mixture…
Our recent works on the photoelectrochemistry and fabrication of the water-splitting photocatalyst for solar energy conversion were reported. The S-dope midgap states were determined by monitoring the effect of the photocurrent on the addition of several reductants. The midgap states for the S-doped anatase TiO2 has h…
Lack of energy is a major crisis of our century; the irregular increase of fossil fuel costs has forced us to search for novel, cheaper, and safer sources of energy. Pebble bed reactors - an advanced new generation of reactors with specific advantages in safety and cost - might turn out to be the desired candidate for…
Tunneling atomic force microscopy (TUNA) is used to identify leakage current characteristics in SiO2 doped ZrO2 thin films within the nanometer scale. TUNA current maps and local TUNA I-V curves provide similar tendencies such as conventional macroscopic I-V curves concerning the dependence of leakage current on thick…
We present experimental evidence of excitation of additional wave in nanorod metamaterials in ENZ regime. Analytical description of the phenomenon is developed and the effect on the optical response of the system is discussed.
Uniaxial compression of micro- and nanopillars is frequently used to elicit plastic size effects in single crystals. Uniaxial tensile experiments on nanoscale materials have the potential to enhance the understanding of the experimentally widely observed strength increase. Furthermore, these experiments allow for inve…
Oak Ridge National Laboratory (ORNL) is conducting a complete, coupled end-to-end (CETE) demonstration of advanced nuclear fuel reprocessing to support the Advanced Fuel Cycle Initiative (AFCI) Research and Development Program. The CETE project under way at ORNL is focused on (1) the demonstration of separations techn…
Efecto de fluidos hidrotermales en fitoplancton 87 ResumenEl estudio de la descarga de fluidos hidrotermales en Ensenada Mapachitos en Bahía Concepción (BCS) en el mes de octubre del 2006 incluyó la adquisición y revisión de datos geoquímicos, así como la determinación de la riqueza y abundancia del fitoplancton.Las a…
The detection of subclinical early inflammation in autoimmune diseases is an important but currently technically demanding approach to direct initial diagnosis and subsequent choice of therapy. Recent advances in imaging using NP provides the potential to detect cellular recruitment, vascular activation or leakage at…
The interactions between carbon nanotubes and important biomolecules, above all collagen molecules, have not been studied in detail. This situation is partly due to the fact that CNT are solid entities, while most of the biomolecules can be prepared in solution. We used turbidity as a means of evaluating the interacti…
The nanoscale CuO/ZnO composite photocatalysts were prepared via the wet chemical route. The detailed structural and physico-chemical properties of the obtained products were analyzed by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-Vis spectroscopy, FT-IR spectroscopy and fluorescence spectra. T…
El oxido de titanio es considerado un biomaterial multifuncional con una experimentada aplicacion en el reemplazo oseo. Sin embargo, gracias a sus propiedades, en los ultimos anos se ha demostrado la viabilidad de este oxido en nuevas areas de la biomedicina, como es la ingenieria de tejidos. En esta revision se prete…
The study presents the results of tribological tests made on Fe-C-V and Fe-C-V-Si alloys undergoing volume solidification and containing carbon in a range of 1,43-2,58%, vanadium in a range of 5,34-14,77%, and silicon in a range of 1,06-3,69%. The, crystallising in Fe-C-V alloys, eutectic is composed of ferrite and va…
Based on energy dispersion relation of the deformed single-walled carbon nanotubes （SWCNTs）, various curves of the electronic velocity and effective mass of the lowest conduction band versus deformation parameters for SWCNTs are computed. It is found that only when a deformation occurs in the special direction（s） and…
Laminate structures on a polymer base are widely used in many responsible applications. Therefore, behaviour of these structures must be predictable in different physical conditions and working loads. Behaviour of polymers can be described by an elastic rheological model only in static loading and specific thermophysi…
We investigated the influence of elastic material compressibility on parameters of the expanding spherical stress wave. The material compressibility is represented by Poisson's ratio $ \nu$. The stress wave is generated by pressure created inside the spherical cavity. The isotropic elastic material surrounds this cavi…