Materials Literature
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This paper discusses the main factors that play an important role in the formation and stabilization of emulsions containing finely divided solids. The influence of contact angle, particle size, particle interactions, and surfactants on emulsion behavior is discussed, and the state of the art in experimental technique…
A thermodynamic model of the ferroelectric SmC* phase, based on an extended Landau expansion of the free-energy density, is presented. We discuss how the signs of the parameters entering the model are depending on whether the pitch of the helix is right-handed or left-handed and whether the compound is of the (+) or (…
The Stoner model of ferromagnetism in metals is generalized to reproduce the results of spin-polarized total-energy band calculations with the fixed-spin-moment procedure. The Stoner parameter for the exchange field is made a function of both volume and magnetic moment and evaluated from the band calculations. A gener…
The deformation characteristics of Ti–6Al–4V have been established by torsion testing in the temperature range 800–1150°C. Constitutive equations are proposed for both the β-region and the α+β-region which, it is suggested, may have some practical applications. Extensive optical and electron microscopy have establishe…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation of solid thianthrene cation radical tetrafluoroborateBogdan Boduszek and Henry J. ShineCite this: J. Org. Chem. 1988, 53, 21, 5142–5143Publication Date (Print):October 1, 1988Publication History Published online1 May 2002Published inissue 1 October 1988https://pu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAbsorption spectra, luminescence properties, and electrochemical behavior of tris-heteroleptic ruthenium(II) polypyridine complexesAlberto Juris, Sebastiano Campagna, Vincenzo Balzani, Gabriel Gremaud, and Alex Von ZelewskyCite this: Inorg. Chem. 1988, 27, 20, 3652–3655Publi…
The electrochemistry of pure aluminum and six alloys containing elements such as Ga, In, Tl, Mg, and Mn in at temperatures of 25°, 50°, and 80°C is reported. Alloy electrodissolution and hydrogen evolution were explored separately by delineating the current/voltage curves for the anodic and cathodic partial reactions…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactive and kinetic properties of carbon monoxide and carbon dioxide on a graphite surfaceB. Marchon, W. T. Tysoe, J. Carrazza, H. Heinemann, and G. A. SomorjaiCite this: J. Phys. Chem. 1988, 92, 20, 5744–5749Publication Date (Print):October 1, 1988Publication History Publi…
A 13.6-kilobase (kb) Sau3AI restriction endonuclease fragment of Clostridium acetobutylicum DNA cloned into pBR322 enabled Escherichia coli ato mutants to grow on butyrate as a sole carbon source (But+). Complementation of the ato defect by the recombinant plasmid pJC6 was due to expression of the genes for phosphotra…
Five DTPA-amide and ester derivatives have been synthesized and their Gd3+ stability constants have been measured using a simple spectrophotometric method. These results are compared to stability constants measured for Gd3+ binding to two different DTPA-conjugated proteins. Although the thermodynamic constants for Gd3…
Abstract The Kelvin impulse is a particularly valuable dynamical concept in unsteady fluid mechanics, with Benjamin and Ellis [2] appearing to be the first to have realised its value in cavitation bubble dynamics. The Kelvin impulse corresponds to the apparent inertia of the cavitation bubble and, like the linear mome…
A fine‐sized (∼0.1 μm), agglomerate‐free Al 2 O 3 dispersion was used to prepare homogeneous green bodies with ∼69% relative density and ∼10‐nm median pore radius. Samples could be sintered at 1150°C to a relative density >99.5% and an average grain size of 0.25 μm.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAchieving high quantum yield charge separation in porphyrin-containing donor-acceptor molecules at 10 KMichael R. Wasielewski, Douglas G. Johnson, Walter A. Svec, Kristin M. Kersey, and David W. MinsekCite this: J. Am. Chem. Soc. 1988, 110, 21, 7219–7221Publication Date (Pri…
An electrochemical impedance analysis of pure aluminum in at 25°C is reported. Impedance spectra have been obtained at 30–80 mV intervals extending from the hydrogen evolution region at −1.96V ( vs. , ) to the transpassive dissolution region at −1.35V. The impedance spectra are found to consist of two intersecting cap…
The pair structure and the thermodynamics of isotropic fluids composed of hard particles of different shapes and concentrations are considered by a new approach which (i) unifies the diagramatic Percus–Yevick theory and the geometric scaled particle theory, and (ii) leads to analytic accurate approximations for the di…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAnalysis of the glass transition temperature of miscible polymer blendsMadeleine Aubin and Robert E. Prud'hommeCite this: Macromolecules 1988, 21, 10, 2945–2949Publication Date (Print):October 1, 1988Publication History Published online1 May 2002Published inissue 1 October 1…
Reaction curves were obtained at various temperatures and concentrations for the formation of BaTiO 3 from particulate titania in Ba(OH) 2 solution. Kinetic analyses were performed by constructing mathematical models which took into account the particle size distribution of the reactant titania for both the topochemic…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTemperature dependence of the luminescence of cyclometalated palladium(II), rhodium(III), platinum(II), and platinum(IV) complexesFrancesco Barigelletti, Diana Sandrini, Mauro Maestri, Vincenzo Balzani, Alex Von Zelewsky, Laurent Chassot, Philippe Jolliet, and Urs MaederCite…
Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More
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