Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
We have designed and constructed a sealed, temperature-controlled Couette-type shear cell which allows us to carry out in situ synchrotron x-ray scattering studies of the nonequilibrium structures of complex fluids under flow, probing lengths ranging from the nanometer to the semimacroscopic micron scale. The sealed d…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCellulose acetate propionate and poly(tetramethylene glutarate) blendsCharles M. Buchanan, Steve C. Gedon, Alan W. White, and Matthew D. WoodCite this: Macromolecules 1993, 26, 11, 2963–2967Publication Date (Print):May 1, 1993Publication History Published online1 May 2002Pub…
The Cooperative Research and Development Agreement (CRADA), established to study the production and mitigation of S/sub 2/F/sub 10/ (disulfur decafluoride), one of a number of toxic by-products formed in electric discharges in the insulating gas SF/sub 6/, is described. The particular concern about S/sub 2/F/sub 10/ i…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBis(dimethylviolurato)(phenanthroline)cobalt(II), a low-spin octahedral cobalt(II) complex. Crystal structure of [Co(dmvi)2phen].2CHCl3Juan Faus, Miguel Julve, Francisco Lloret, and M. Carmen MunozCite this: Inorg. Chem. 1993, 32, 10, 2013–2017Publication Date (Print):May 1,…
Summary The determination of lattice orientations from electron back‐scattering patterns (EBSPs) in a scanning electron microscope (SEM) requires accurate knowledge of the position of the pattern centre and the source point to screen distance. This paper outlines a new procedure that enables the determination of these…
Etching of thick copper foil masked except for a single rectangular opening having an aspect ratio (width:depth) of 5:1 or 1:1 was investigated in the presence of controlled laminar flow across the width of the pattern opening. In a solution of , copper was found to form a surface film spontaneously at the "corrosion…
A thermionic transient analysis model is developed to simulate transient and steady-state operations of a fully integrated, single-cell thermionic fuel element (TFE). The responses of the TFE to a step input in reactivity and changes in the cesium pressure or in the size of the interelectrode gap, the coolant temperat…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and structural characterization of the [AuTe7]3- anion: a planar species with an unprecedented coordination modeMohammad A. Ansari, John C. Bollinger, and James A. IbersCite this: J. Am. Chem. Soc. 1993, 115, 9, 3838–3839Publication Date (Print):May 1, 1993Publicat…
Abstract The state of the art of photosensitive polyimides is reviewed with respect to the incorporation of photosensitivity into both polyimide precursors and soluble polyimides, for patterning in positive and negative modes. This paper emphasizes, in particular, the discussion of the performance of commercially avai…
High-resolution electron energy loss spectroscopy has been used to investigate the effect of atomic hydrogen and oxygen on diamond growth. For a totally desorbed diamond (100) surface, atomic hydrogen corrodes carbon atoms on the surface first, then saturates the dangling bonds of sp3 hybridized carbon atoms on the ne…
The three-dimensional integration of the Biot-Savart law for conductors in annular sector shape, in which only a constant-density theta -directed current flows, is reported. The expressions obtained allow a quick and accurate evaluation of the components of the vector potential of the stationary magnetic field and of…
The spectral and electrochemical properties of tetrabenzo[5,10,15]triazaporphine (TBTAP) and its magnesium derivatives having a long alkyl chain attached to the meso carbon have been studied. Both metal-free and metallated species show typical metal-free phthalocyanine-like spectra. Two reduction and two oxidation red…
Abstract Oxidation of ethyl lactate to pyruvate was carried out in vapor-phase over various oxides. MoO3 showed a higher selectivity than that of the other single oxide examined. Binary oxides containing molybdenum such as Fe2O3–MoO3 and TeO2–MoO3 showed high selectivities to pyruvate over 90% at 300 °C with high lact…
The surfaces of normal liquid alkanes (chain lengths between 15 and 18 carbon atoms) have been studied by light scattering from thermally excited capillary waves. These fluids have recently been reported to exhibit a surface-induced phase transition at temperatures (${\mathit{T}}_{\mathit{k}}$) near, but distinct from…
Abstract A reactive rubber obtained by isocyanation of hydroxyl‐terminated polybutadiene was used as toughening agent for an unsaturated polyester resin. Both the isocyanation and the successive reaction between the modified rubber and the polyester were investigated by Fourier‐transform infrared spectroscopy (FTIR).…
Luminescence emission, including decay kinetics, has been investigated for CsI: Tl excited in the A absorption band of Tl+, in the temperature range 4–300 K. Three emission bands have been identified and ascribed to transitions from non-equivalent minima on the adiabatic potential surface of the excited state of isola…
A numerical solution is obtained for the generalized Onsager problem for the isotropic-nematic interface of rigid rods, which accounts for the biaxial effect that was ignored in previous calculations. It is found that the biaxial effect on interfacial tension is indeed weak, as previously expected. The biaxiality beco…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and electrochemical properties of 1,4-dithiafulvenyl-substituted bianthrone molecules with potential application as molecular switchesMikkel Joergensen, Knud Lerstrup, Peter Frederiksen, Thomas Bjoernholm, Peter Sommer-Larsen, Kjeld Schaumburg, Kay Brunfeldt, and K…
The aim of this paper is to show that different assumptions for the interaction cross sections of low-energy electrons in polycrystalline aluminum targets lead to very different calculated values of secondary-electron yields, either in backscattering or in transmission. We emphasize the importance of the description o…
Diamond has been grown on single-crystal beryllium oxide by hot-filament chemical-vapor deposition. The diamond particles were characterized by Raman spectroscopy, and the morphology and microstructure investigated by scanning electron microscopy and plan-view and cross-sectional transmission electron microscopy. Diam…