Materials Literature
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A new type of vanadium oxide ( V 2 O 5 ‐ n H 2 O ) with a structure intermediate between the amorphous and the crystalline state is synthesized by a reaction of metallic vanadium with hydrogen peroxide. Its electrochemical properties in relation to lithium intercalation have been investigated in a 1 M LiClO 4 / propyl…
Results from a plasma chemistry model provide predictions of spatially and temporally averaged plasma properties. Application of the model to chlorine-etch process conditions, typical of a high plasma-density transformer coupled plasma reactor, provides plasma composition dependence on reactor operating parameter such…
Abstract Verglichen werden die kristallographischen Eigenschaften der Auride M 3 AuO und der Alkalimetallhalogenidoxide M 3 XO (M = K, Rb, Cs; × = Br, I). Rb 3 BrO, Rb 3 IO, Cs 3 BrO und Cs 3 IO werden erstmals dargestellt und strukturell charakterisiert: Rb 3 BrO (a = 5,465(1) Å) kristallisiert als kubischer anti‐Per…
Abstract Composites of wheat straw fibers with polypropylene (iPP) and maleic anhydride modified polypropylene (iPPMA) were prepared. Before being mixed with polypropylene matrices, the wheat straw fibers were subjected to a steam explosion process that induces morphological and structural changes in lignocellulosic m…
Scalar order parameter measurements of the liquid crystal blue phase II (BPII), taken using the Kossel diagram technique, are presented. The temperature dependence of the order parameter is found to follow a curve predicted by the Landau theory. The order parameter data, derived from the diffracted light intensity, ar…
An investigation was carried out concerning the effect of mullite seed particles on phase development, densification behavior, and microstructure evolution in powder compacts prepared with silica/alumina microcomposite particles. The incorporation of ∼2 wt% seed particles in the microcomposite powder compacts had rela…
Mechanical testing of controlled-purity Ni-x% Cr-9% Fe-y% C alloys at 360°C revealed an environmental enhancement in intergranular (IG) cracking and time-dependent deformation in high-purity (HP) and primary water (PW) over that exhibited in argon. Dimples on the IG facets indicated a creep void nucleation and growth…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSol-Gel Preparation and Characterization of Magnesium Peroxide, Magnesium Hydroxide Methoxide, and Randomly and (111) Oriented MgO Thin FilmsAnthony A. Rywak, James M. Burlitch, and Thomas M. LoehrCite this: Chem. Mater. 1995, 7, 11, 2028–2038Publication Date (Print):Novembe…
Diamondlike carbon (DLC) films were deposited using unbalanced planar circular magnetron sputtering of a graphite target with argon as the support gas. The properties of the DLC films were studied as functions of the applied negative substrate bias voltage, 50–200 V, and argon gas pressure, 2–6 mTorr. The hydrogen con…
Part 1: Nuclear Physics 1. The atomic nucleus. 2. Experimental techniques. 3. General properties of nuclei. 4. Nuclear models. 5. Decay of unstable nuclei. 6. Nuclear reactions. Part 2: Particle Physics 7. Sub-nuclear physics - an overview. 8. Symmetry transformations and conservation laws. 9. Hadron spectroscopy. 10.…
Opephora parva, O. pacifica and O. perminuta are commonly reported from brackish and marine sediments worldwide, but their true identity is unclear. Therefore, isotype material of these three taxa was examined using light microscopy. In addition, several populations from different localities in Europe, Africa, South A…
An Oligocene through early Miocene diatom zonation is proposed for the North Pacific based on the stratigraphic documentation and illustration of diatom taxa from Hole 884B on the eastern flank of Detroit Seamount in the northwest Pacific. The Hole 884B section is unique in the North Pacific because it contains a near…
Controlled amounts of GaP and P were added to a Si0.8Ge0.2 matrix by a powder-metallurgical technique in order to evaluate the optimum composition for thermoelectric applications. Bulk determination of the gallium and phosphorus content in fully dense, hot pressed compacts was performed by inductively coupled plasma a…
Complex hydrodynamics near the moving contact line control spreading of a fluid across a solid surface. In the confined region near the contact line, velocity gradients in the fluid are large and viscous forces control the shape of the fluid/fluid interface. The present model for liquid spreading describes the viscous…
The solubility of paracetamol was determined as a function of temperature in mixtures of wide polarity range (ethyl acetate:ethanol and ethanol:water) to compare the solvation effects of amphiprotic and amphiprotic-aprotic solvent systems. The mole fraction solubility of the drug showed solubility maxima at δ1 = 14·53…
A divalent metal ion-stimulated protein-serine/threonine phosphatase, PP1-arch, was purified approximately 1,000-fold from the extreme acidothermophilic archaeon Sulfolobus solfataricus (ATCC 35091). Purified preparations contained 40 to 70% of total protein as PP1-arch, as determined by assay-ing sodium dodecyl sulfa…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpectroscopic and Magnetostructural Correlations in Oxo-Bridged Dinuclear Vanadium(III) Complexes of Potential Biological SignificanceMarcus R. Bond, Roman S. Czernuszewicz, Bakul C. Dave, Qing Yan, Madan Mohan, Ruben Verastegue, and Carl J. CarranoCite this: Inorg. Chem. 19…
The objective of the work reported here was to characterize the tarnish products formed on copper during the early stages of exposure to moist air with trace levels of pollutant gas, in particular, sulfur dioxide and sulfur dioxide/nitrogen dioxide. A mixed‐flowing‐gas chamber was used to control part per billion (ppb…
Chain molecules formed from m tangent hard-sphere segments are of particular interest in studies of liquid crystalline phases because they represent one of the simplest models which can account for molecular flexibility. In this paper we obtain analytical expressions for the excluded volume for a pair of linear homonu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of NO Pressure on the Reaction of NO and CO over Rh(111)Haryani Permana, K. Y. Simon Ng, Charles H. F. Peden, Steven J. Schmieg, and David N. BeltonCite this: J. Phys. Chem. 1995, 99, 44, 16344–16350Publication Date (Print):November 1, 1995Publication History Publishe…