Materials Literature
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Hexagonal boron nitride (h-BN) based ceramics have been fabricated by hot-pressing in a nitrogen atmosphere at 1900°C for 60 min. under a pressure of 50 MPa with B2O3 as sintering additive. The phase composition was confirmed by XRD. The microstructural properties of h-BN powders and hot-pressed surfaces were evaluate…
Size-dependent elastic properties of Ni nanofilms are investigated by molecular dynamics (MD) simulations with embedded atom method (EAM). The surface effects are considered by calculating the surface relaxation, surface energy, and surface stress. The Young's modulus and yield stress are obtained as functions of thic…
Abstract Water‐induced crystallization of polycarbonate (PC) was investigated in water‐saturated supercritical CO 2 (scCO 2 ) in the range of 80–160°C and 12–20 MPa, with the help of differential scanning calorimetry and wide‐angle X‐ray diffraction. Compared with pure scCO 2 , the enhanced plasticizing effect of wate…
Open Circuit Potential (OCP) is one of the electrochemical methods to evaluate the corrosion performance of organic coatings. Some authors have used OCP measurement data to confirm their results obtained with Electrochemical Impedance Spectroscopy (EIS). In this investigation, there is an attempt to utilize OCP measur…
The intrinsically conducting polymer (ICP), polyaniline (PANI) has been synthesized by chemical polymerization process with the help of water soluble support polymer poly (vinyl pyrrolidone) (PVP). The X-ray diffraction of synthesized PANI-PVP polymer reveals that the polymeric nanocomposites are partially crystalline…
We propose a model for non-isothermal phase transitions with non-con-served order parameter driven by a spatially non-local free energy with respect to both the temperature and the order parameter. The resulting system of equations is shown to be thermodynamically consistent and to admit a strong solution.
In this work vinylester—matrix composites reinforced with woven jute fabrics were investigated. The effect of a simple fiber treatment with silicone on the mechanical and viscoelastic response in comparison to traditional treatments was analyzed. Unless the composite with acetylated fibers, all composites exhibited hi…
The genes of the oligodendrocyte lineage (Golli) encode a family of developmentally regulated isoforms of myelin basic protein. The "classic" MBP isoforms arise from transcription start site 3, whereas Golli-specific isoforms arise from transcription start site 1, and comprise both Golli-specific and classic MBP seque…
A set of novel left-handed LH) basic block monolithic-microwave integrated-circuit (MMIC) components (transmission line, open and short stubs) are presented with applications to the RF/microwave filter and power divider. These new open and short LH MMIC resonators have compact sizes of 0.11 and 0.22${\hbox {mm}}^{2}$,…
Recent experiments in ASDEX Upgrade (AUG) have experienced surprisingly high He plasma impurity concentrations. Such high He concentrations have not been observed with C walls, they were only observed since the increase in the W first-wall coverage of ASDEX Upgrade to 85%. The high He plasma concentration appears to b…
We report the epitaxial film growth, by pulsed laser deposition, of c-axis-oriented Nb-doped SrO(SrTiO3)1 films having a K2NiF4-type structure and their thermoelectric properties over a wide temperature range, from 20 to 800 K. High-resolution x-ray diffraction and reflection high energy electron diffraction patterns…
The morphologies of 1-octene-based linear low-density polyethylenes (LLDPEs) prepared with single-site (ss) or Ziegler−Natta (ZN) catalysts were investigated using solid-state 13 C NMR spectroscopy. For each type of LLDPE, two samples, containing either approximately 10 or approximately 30 hexyl branches per 1000 back…
Abstract The influence of UV absorber (Chimassorb81) on the photodegradation mechanism of different average degrees of polymerization ( DP ) of poly (vinyl chloride) (PVC) with UV‐irradiation time was investigated by viscosity‐average molecular weight determination, UV‐vis spectroscopy, FTIR, contact angle measurement…
The photobehavior of carbon nanotubes (CNTs) has attracted great attention because of their unique cylinder structure and outstanding electrical properties. Much experimental progress toward nanotubes based photodetector has been reported. But it is still unclear whether the photoinduced conductivity change is caused…
Theoretical and experimental investigation is performed into the relation between plastic strain localizations of different scale in solids and the respective stress concentrators arising in the surface layer and at internal interfaces. It is found that localized plastic flow of any kind may form and propagate only un…
Dielectric surface flashover along insulators in atmospheric conditions has only been empirically characterized over the years. The underlying physics involved in atmospheric flashover has yet to be understood, where parameters such as background gas, humidity, surface roughness, and temporal characteristics of the ap…
Extended abstract of a paper presented at Microscopy and Microanalysis 2007 in Ft. Lauderdale, Florida, USA, August 5 – August 9, 2007
Abstract Co‐precipitation of proteins from whole cell extracts is a valuable approach to test for physical interactions between proteins of interest. It may be the method of choice, or may be used in conjunction with other procedures to detect protein‐protein interactions, such as two‐hybrid analyis and co‐purificatio…
Polycrystalline Si1−xMnx films codoped with boron have been prepared by radio-frequency magnetron sputtering deposition followed by post-thermal processing for crystallization. The polycrystalline thin films were treated by hydrogen plasma excited with approach of radio-frequency plasma-enhanced chemical vapor deposit…
This study examines the resistance change in conductive polypyrrole-coated PET fabrics under the AS 2001.4.15 – 1994 laundering test conditions. The effects of individual detergent components of a standard detergent, including auxiliary chemicals, at four different temperatures were studied. When the coated fabric was…