Materials Literature
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We present an alternative approach to the calculation of long-time diffusion coefficients of dense suspensions. The main idea is to approximate friction coefficients rather than the diffusion coefficients. Within this scheme we derive a very simple yet accurate theory of dynamic properties of a hard-sphere suspension:…
Strontium titanate thin films have been prepared on p-type Si(100) substrates by radio frequency (rf) magnetron sputtering. The films were deposited at 400 °C and annealed at various temperatures. The thin films were polycrystalline and the crystallinity of films was increased by annealing. The SrTiO3 thin films were…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTitania coating of a microporous carbon surface by molecular adsorption-depositionAkihiko Matsumoto, Kazuo Tsutsumi, and Katsumi KanekoCite this: Langmuir 1992, 8, 10, 2515–2520Publication Date (Print):October 1, 1992Publication History Published online1 May 2002Published in…
This document is the first volume of a three-volume report to provide generic and site-specific estimates of radiation dose for exposures to residual radioactive contamination after the decommissioning of facilities licensed by the US Nuclear Regulatory Commission (NRC). Details are provided of the generic scenario an…
Abstract Transmission electron microscopy (TEM) was utilized to determine the origins of berthierine and chlorite in the core of the footwall alteration zone of the Kidd Creek massive sulfide deposit, Ontario. TEM images show lamellar intergrowths of packets of berthierine, mixed-layer chlorite/berthierine, Fe-Mg chlo…
Simple analytical functions derived from our point source Monte Carlo calculations on the combined attenuation and scatter factor, B exp(-mu r), for 60Co, 137Cs, 198Au, 192Ir, 241Am, 125I (models 6702 and 6711) brachytherapy sources and the nuclide 99Tcm, for water spherical geometries of radii R = 15 and 20 cm, are p…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSulfidation of limestone-derived calcinesEvangelos A. Efthimiadis and Stratis V. SotirchosCite this: Ind. Eng. Chem. Res. 1992, 31, 10, 2311–2321Publication Date (Print):October 1, 1992Publication History Published online1 May 2002Published inissue 1 October 1992https://pubs…
The nucleation of diamond on highly oriented pyrolytic graphite (HOPG) substrates using hot-filament-assisted chemical-vapor deposition has been studied. Significant differences were observed between the basal {0001} and prism plane {hk*0} surfaces, and for various pretreatments of these surfaces. Observed nucleation…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPartial oxidation of methane: the role of surface reactionsDaniel J. Thomas, Rene Willi, and Alfons BaikerCite this: Ind. Eng. Chem. Res. 1992, 31, 10, 2272–2278Publication Date (Print):October 1, 1992Publication History Published online1 May 2002Published inissue 1 October…
The influence of Co, Cd, and Zn ions on the voltammetric behavior of the nickel hydroxide electrode in binary and ternary metal hydroxide layers in and was investigated. The presence of Co hydroxide increases the reversibility of the Ni(II)/Ni(III) electrochemical reaction and hinders aging effects involving unstable…
Abstract The morphology of blends of styrenic polymers in a matrix of 75% Nylon‐6 prepared in a Brabender Plasti‐Corder was examined by scanning electron microscopy. Styrene/acrylonitrile copolymers (SAN) form smaller particles as the AN level increases owing to the corresponding decrease in the SAN–polyamide interfac…
A Pt single crystal of cylindrical shape (axis II [001]) whose surface exhibits all orientations of the [001] zone has been used to study coupling effects between orientations which exhibit kinetic oscillations in catalytic CO oxidation. On the clean surface, one can distinguish between an orientational range in betwe…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRelationship between birefringence and the structure of ordered block copolymer materialsN. P. Balsara, B. A. Garetz, and H. J. DaiCite this: Macromolecules 1992, 25, 22, 6072–6074Publication Date (Print):October 1, 1992Publication History Published online1 May 2002Published…
This paper discusses the third-order nonlinear optical (NLO) properties of metal-free, lead and transition metal phthalocyanines, as well as scandium, yttrium and lanthanide bisphthalocyanines measured by time-resolved degenerate four-wave mixing at 1064 nm. The study focuses on the structure-property relationships an…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrganometallic nonlinear optical polymers. 2. Synthesis of main-chain organometallic polymers and a structural study of ferrocene NLO-phoresMichael E. Wright and Edward G. ToplikarCite this: Macromolecules 1992, 25, 22, 6050–6054Publication Date (Print):October 1, 1992Public…
A new series with a chiral tolane core has been synthesized. These materials belong to the optically active series: 3-fluoro-4-[(R) or (S)-1-methylheptyloxy]4′-(4″-alkyloxy-3″-fluorobenzoyloxy)tolanes (nFBTFO1M7). For the first time, the helical SA* phase or TGBA phase is found in all of the derivatives from heptyloxy…
Abstract μ-Alkoxo-bridged dinuclear and tetranuclear manganese(III) complexes with 1,5-bis(salicylideneamino)-3-pentanol (H3L), [Mn2(L)(CH3O)Cl2(CH3OH)2] (1), [Mn2(L)(CH3O)(CH3COO)(CH3OH)2]X (X = Br (2), I (3)), [Mn2(L)(CH3O)(CH3COO)(CH3OH)Y] (Y = NCS (4), N3 (5), ClO4 (6)), [Mn2(L)(CH3O)(NCO)2(H2O)2] (7), and [Mn4(L)…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOptimized synthesis, structure, and solution dynamics of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrakis(methylenephosphonic acid) (H8DOTP)Istvan Lazar, Duane C. Hrncir, Won Dae Kim, Garry E. Kiefer, and A. Dean SherryCite this: Inorg. Chem. 1992, 31, 21, 4422–4424Publicati…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMordenite acidity: dependence on the silicon/aluminum ratio and the framework aluminum topology. 2. Acidity investigationsHelmut Stach, Jochen Jaenchen, Hans Georg Jerschkewitz, Ursula Lohse, Barbara Parlitz, and Michael HungerCite this: J. Phys. Chem. 1992, 96, 21, 8480–848…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA stable dinitrogen complex of a ruthenium cofacial diporphyrinJames P. Collman, James E. Hutchison, Michel Angel Lopez, and Roger GuilardCite this: J. Am. Chem. Soc. 1992, 114, 21, 8066–8073Publication Date (Print):October 1, 1992Publication History Published online1 May 20…