An Electrochromic Window Based on Li x WO 3 / ( PEO ) 8LiClO4 / NiO
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Structure and reactivity of oxovanadate anions in layered lithium aluminate materials
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure and reactivity of oxovanadate anions in layered lithium aluminate materialsJen Twu and Prabir K. DuttaCite this: J. Phys. Chem. 1989, 93, 23, 7863–7868Publication Date (Print):November 1, 1989Publication History Published online1 May 2002Published inissue 1 Novembe…
Morphology of the lingual apparatus of the domestic chicken, Gallus gallus, with special attention to the structure of the fasciae
A detailed redescription of the mechanically interacting structural elements of the lingual apparatus of the domestic chicken, Gallus gallus, revealed the functional and constructional role of organized connective tissue (i.e., ligaments and fasciae) as structural elements that ensure the proper biomechanical interact…
Non‐destructive depth profiling through quantitative analysis of surface electron spectra
Abstract A theory is presented that allows detailed quantitative information on in‐depth concentration profiles to be extracted through analysis of surface electron spectra. The depth profile is determined from analysis of a single spectrum and the method is therefore fast and non‐destructive. The validity of the meth…
Thermodynamic theory of the lead zirconate-titanate solid solution system, part IV: Tilting of the oxygen octahedra
Values of coefficients related to the tilting of the oxygen octahedra in the low-temperature rhombohedral phase of the lead zirconate-titanate (PZT) solid solution system are needed in the development of a thermodynamic theory of the PZT system. In this paper these coefficients will be determined from experimental spo…
Hydration and Amorphization of Active Mass PbO2 Particles and Their Influence on the Electrical Properties of the Lead‐Acid Battery Positive Plate
Through TEM observations it was established that particles of the positive active mass are heterogeneous in mass distribution. Using electron micro‐micro‐diffraction it was found that particles are built up of zones of crystal structure with various orientation, and of amorphous zones. The latter are more transparent…
Corrosion Behavior of Silicon Carbide in 290°C Water
The fundamental corrosion behavior of silicon carbide (SiC) ceramics was investigated after immersion in 290°C water solutions with different pH and dissolved‐oxygen concentrations. The weight loss in the oxygenated solution was more than that in the deoxygenated solution and was accelerated by increasing pH. Preferen…
Comparative studies of the photophysical properties of copper phenanthrolines: from Cu(dmp)2+ to the copper(I) catenates
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComparative studies of the photophysical properties of copper phenanthrolines: from Cu(dmp)2+ to the copper(I) catenatesAnn K. I. Gushurst, David R. McMillin, Christiane O. Dietrich-Buchecker, and Jean Pierre SauvageCite this: Inorg. Chem. 1989, 28, 22, 4070–4072Publication…
The effect of Bi2O3 content on the microstructure and electrical properties of ZnO varistor materials
The microstructures of three ZnO varistor materials with different Bi2O3 contents have been evaluated by analytical electron microscopy in combination with x-ray diffractometry. The results have been correlated to microelectrode measurements, where breakdown voltages of individual ZnO junctions were measured, and also…
Modeling of stress effects in silicon oxidation
A new set of models for the stress effects in silicon oxidation is proposed. The most essential feature is the nonlinear shear-stress-dependent oxide viscosity which models a high-stress relaxation phenomenon similar to plastic deformation. The models are shown to agree well with the most comprehensive and quantitativ…
Catalyst particle sizes from Rutherford scattered intensities
SUMMARY We show that the number of atoms in a small supported catalyst cluster can be estimated from the strength of electron scattering into a high angle annular detector in the STEM. The technique is related to the Z contrast methods developed by Crewe, Wall, Langmore and Isaacson. It works best for high atomic numb…
Electric-field-induced association of colloidal particles
Dilute suspensions of micron diameter dielectric spheres confined to two dimensions are induced to aggregate linearly by application of an electric field. The growth of the average cluster size agrees well with the Smoluchowski equation, but the evolution of the measured cluster size distribution exhibits significant…
Thermodynamic theory of the lead zirconate-titanate solid solution system, part II: Tricritical behavior
Two tricritical points, where a phase transition changes from first to second order, were found to occur in the lead zirconate-titanate (PZT) solid solution system. High-temperature x-ray diffraction data on sol-gel derived PZT powders were used to calculate the cell parameters and spontaneous strain in the ferroelect…
Influence of deviations from ideal stoichiometry on the anisotropy parameters of magnetiteFe3(1−δ)O4
Magnetization measurements are reported for ${\mathrm{Fe}}_{3(1\mathrm{\ensuremath{-}}\mathrm{\ensuremath{\delta}})}$${\mathrm{O}}_{4}$ in the range 0\ensuremath{\le}\ensuremath{\delta}<0.010. Anisotropy parameters consistent with these measurements were determined as a function of \ensuremath{\delta} and of temper…
Domain-wall dynamics in organic charge-transfer compounds with one-dimensional ferroelectricity
It has been widely observed in ionic donor-acceptor charge-transfer (CT) compounds that kink-type domain walls between one-dimensional ferroelectric molecular domains show strong dielectric response with a thermally activated relaxation frequency over a wide temperature range. The domain walls can carry spin and elect…
Barrier Properties and Surface Characteristics of Edible, Bilayer Films
ABSTRACT Various formulations and methods of fabricating a film consisting of edible hydrocolloids and lipids were investigated. Two formulations consisting of a methylcellulose base layer and a beeswax layer, deposited either from a molten state (Wax‐M film) or from an ethanolic solution (Wax‐S film), were examined f…
Aryl-bridged polysilsesquioxanes--new microporous materials
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAryl-bridged polysilsesquioxanes--new microporous materialsKenneth J. Shea, Douglas A. Loy, and Owen W. WebsterCite this: Chem. Mater. 1989, 1, 6, 572–574Publication Date (Print):November 1, 1989Publication History Published online1 May 2002Published inissue 1 November 1989h…
Mode-coupling theory of the dynamics of polymer liquids: Qualitative predictions for flexible chain and ring melts
The qualitative predictions of the mode–mode-coupling (MMC) theory developed in the preceding paper are determined for various transport properties and time correlation functions. The degree of polymerization N dependence of the self-diffusion constant D of long flexible chain and rigid rod melts are found to be in ag…
Dynamics of glassy and liquid selenium
Inelastic-neutron-scattering studies of glassy, liquid, and polycrystalline selenium have been performed at temperatures between 100 and 600 K. A self-consistent data evaluation, taking careful account of multiple and multiphonon scattering, shows that a complete interpretation is possible in terms of a temperature-de…
Electrical and magnetic properties of liquid crystalline molecular materials: lithium and lutetium phthalocyanine derivatives
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrical and magnetic properties of liquid crystalline molecular materials: lithium and lutetium phthalocyanine derivativesZ. Belarbi, C. Sirlin, J. Simon, and Jean Jacques AndreCite this: J. Phys. Chem. 1989, 93, 24, 8105–8110Publication Date (Print):November 1, 1989Publi…