Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAlkali metal catalyzed carbon dioxide gasification of carbonToshimitsu Suzuki, Hiroyuki Ohme, and Yoshihisa WatanabeCite this: Energy Fuels 1992, 6, 4, 343–351Publication Date (Print):July 1, 1992Publication History Published online1 May 2002Published inissue 1 July 1992http…
The anodic polarization behavior of copper was studied in the pH range 9.4 to 10.8, where pH was controlled (buffered) by additions of either borate, bicarbonate/carbonate, ammonia, or sodium hydroxide. Several solutions contained either 1 M sulfate, 1 M chloride, or 5 M chloride. Passivation effects were observed in…
We measured the Raman spectrum associated with the E 2 ‐TO quasi and LO quasi modes of 6H‐SiC particles as a function of hydrostatic pressure using a diamond anvil cell. The results of this calibration experiment were used to analyze the residual stress in 6H‐SiC particles within Al 2 O 3 /SiC composites with 12%, 20%…
Before conducting polymers can be employed in many applications, some of the intrinsic properties of these materials need to be better understood. An overview of the research and development of conducting polymers being undertaken at UTS is presented. Because conducting polymers are difficult to process once fabricate…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of poly(ethylene oxide) with heterobifunctional reactive groups at its terminals by an anionic initiatorMasayuki Yokoyama, Teruo Okano, Yasuhisa Sakurai, Akira Kikuchi, Nobuyuki Ohsako, Yukio Nagasaki, and Kazunori KataokaCite this: Bioconjugate Chem. 1992, 3, 4, 2…
Deterioration in the insulation performance of extra-high voltage XLPE (cross-linked polyethylene) cables is believed to be attributable to the deterioration caused by partial discharges. After using an XLPE cable to investigate the behavior of partial discharges under various adverse conditions, the authors succeeded…
Molecular‐based magnetic materials have been shown to order both as bulk ferro‐ and ferrimagnets. Here, the effect of anisotropy of the magnetic interaction between interacting centers on the transition temperature to magnetic order is investigated and it is shown that molecular materials containing rare‐earth element…
Rietveld analysis and intermolecular energy minimization were used to refine the crystal structure parameters of one of the polymorphs of titanylphthalocyanine (TiOPc), which is a highly photosensitive pigment used in electrophotography. The most probable crystal structure is proposed to be a monoclinic unit cell, spa…
Greenhouse and laboratory experiments were carried out to determine the effectiveness of a wood‐derived ash as a lime replacement. Treatments included wood ash, wood ash and lime admixtures, and lime amendments (ash amendment ranged from 0 to 20.17 and lime amendment from 0 to 4.06 g/kg soil on a dry weight basis). Tr…
A new method of incorporating TiO2 into zeolite cavities through ion exchange of zeolites Y with an aqueous solution of ammonium titanyl oxalate oxalate monohydrate, (NH4)2TiO(C2O4)2H2O, has been developed. Characterization of the products clearly demonstrates that (1) ion exchange between the Ti species present in th…
Abstract Nanostructured materials are polycrystals with a crystal size of a few (typically 20 or less) nm and hence consist of about equal volume fractions of grain (interphase) boundary cores and crystals. Due to the large volume fractions of incherent interfaces, the diffusional processes in these materials seem to…
We present a calculation of the hydrodynamic self-diffusion coefficient of a tagged particle in a dilute mono-dispersed suspension of small neutrally buoyant spheres undergoing a steady simple shearing motion. The displacement of the tagged particle parallel to the longitudinal or streamwise direction resulting from a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and characterization of the paramagnetic [Ag13Fe8(CO)32]4- tetraanion: a cuboctahedral Ag13 cluster stabilized by Fe(CO)4 groups behaving as 4-electron donorsVincenzo G. Albano, Loris Grossi, Giuliano Longoni, Magda Monari, Suzanne Mulley, and Angelo SironiCite thi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTridecavanadate, [V13O34]3-, a new high-potential isopolyvanadateDong Hou, Karl S. Hagen, and Craig L. HillCite this: J. Am. Chem. Soc. 1992, 114, 14, 5864–5866Publication Date (Print):July 1, 1992Publication History Published online1 May 2002Published inissue 1 July 1992htt…
Tungstic oxide/polyaniline composite films were prepared by a double‐pulse electrodeposition technique, and their properties were investigated by in situ optical and electrochemical techniques. Such composite films are more conducting than pure films. The films have an electrochromic window between the anodic colorati…
Magnesium is known to be a perspective fuel for engines which could use CO2 from the atmospheres of Mars and Venus as an oxidizer. Combustion of magnesium samples introduced into a high temperature CO2/CO mixture is experimentally studied. Measurements of the burning time as well as visual observations and spectral an…
N-Oxaloglycine (3) is an alpha-ketoglutarate (1) analogue that is a competitive inhibitor of prolyl 4-hydroxylase (EC 1.14.11.2). A study of the structure-activity relationships of some other oxalo derivatives shows that substitution on the glycine moiety modulates activity stereoselectively and that if the omega-carb…
Platinum-tin on alumina catalysts appear to have potential for use during naphtha reforming in processes utilising continuous catalyst regeneration, and without the need for complex activation procedures. To gain a better understanding of the properties that contribute to their effectiveness, the surface and bulk char…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMicromechanics of crack growth into a craze in a polymer glassC. Y. Hui, A. Ruina, C. Creton, and E. J. KramerCite this: Macromolecules 1992, 25, 15, 3948–3955Publication Date (Print):July 1, 1992Publication History Published online1 May 2002Published inissue 1 July 1992http…
In unusually high yields of 75 and 70% respectively, the macrocycles with six (1) and twelve arene units have been efficiently synthesized by cyclization of α-iodo-ω-ethynylphenyl-acetylene oligomers. The success is probably due to the preassembly of these difunctional building blocks. Molecular models indicate an inn…