Materials Literature
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(1984). Surface-stabilized ferroelectric liquid crystal electro-optics: New multistate structures and devices. Ferroelectrics: Vol. 59, No. 1, pp. 25-67.
The most recently developed diagnostic technique in metal-electrolyte and metal-gas interfaces adapts spontaneous Raman scattering and nonlinear optical generation, techniques normally applied to bulk media, to surface science investigation. For certain metallic surfaces, an enormous increase exists in the Raman (as m…
Meso-tetra(2,6-dichlorophenyl)porphinatoiron(III)chloride and meso-tetra(pentachlorophenyl)porphinatioiron(III)chloride, which resist µ-oxo dimmer formation and oxidative destruction, are found to be unusually efficient catalysts for high-turnover, high-yield alkene epoxidation and alkane hydroxylation.
Colloidal particles of CdS are produced by adding H2S to aqueous solutions of Cd(NO3)2(method 1) or rapid mixing of Na2S and Cd(NO3)2 solutions (method 2). Single crystals with cubic structure are obtained, their size being 50 and 20 Å, respectively. Type 1 particles are associated as dimers or trimers while type 2 pa…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComplexes of aluminum(III) with hydroxy carboxylic acidsRamunas J. Motekaitis and Arthur E. MartellCite this: Inorg. Chem. 1984, 23, 1, 18–23Publication Date (Print):January 1, 1984Publication History Published online1 May 2002Published inissue 1 January 1984https://pubs.acs…
"Directionally Solidified Materials for High Temperature Service." British Corrosion Journal, 19(4), pp. 154–155
Introduction. Glossary. Theory of structures and theory of probability. Part 1: Analytical methods. Random quantities and structural reliability. Models of external actions. Elastic structures. Plastic structures. Structural reliability and structural design. Part 2: Operative methods. Data statistics. Statistical ana…
Sonoluminescence (SL) is the name given to the light emitted when a liquid is cavitated in a particular (rather violent) manner. The appropriate cavitation conditions can be realized by using high intensity ultrasound, a spark discharge, a laser pulse, or by flowing the liquid through a Venturi tube. SL occurs in a wi…
Revue portant sur les applications de ces alliages a solidification rapide a partir des feuilles metalliques amorphes pour dispositifs magnetiques jusqu'aux composants consolides par metallurgie des poudres pour applications structurales; on passe aussi en revue les modeles mathematiques appropries au processus de sol…
A comprehensive summary is provided on the subject of heavy metal fluoride glasses. This includes discussions on glass compositions, preparation, structure, fiber drawing characteristics, and intrinsic and extrinsic optical properties. Other relevant glass and fiber characteristics such as strength, durability, and th…
XPS techniques have been used to characterize electrically conducting films of polypyrrole and polybithiophenes as grown electrochemically. These techniques have yielded information not only on the nature of the polymeric cation and its counter anion but also on the structural disorder in these polymers. In particular…
Abstract The structure and chemistry of thin solid films are best studied by transmission electron microscopy (TEM) when they are viewed in cross‐section—that is, when the surface normal of the film is made perpendicular to the electron beam. In this orientation, the substrate, the thin film layers, and the interfaces…
Hitherto unobtainable Raman solution data for [Ru3(CO)12], [Os3(CO)12], and [Ru4H4(CO)12] in the carbonyl stretching region are presented. The results were obtained by careful choice of solvent and specialist instrumentation. They are shown to confirm previous assignments, by examining the special vibrational properti…
We consider a lattice dynamics model of a straight screw dislocation moving in a simple cubic lattice with nearest-neighbour « snapping bonds ». The effect on the lattice of the dislocation motion is described by a dynamic source-force, or Kanzaki-force, and the lattice response by the phonon Green's function. A rando…
The first molecular weight determination for a pyrrole based conducting polymer indicates that poly(β,β′-dimethylpyrrole) consists of chains of up to ca. 1000 pyrrole units.
Soluble conducting poly(acetylene)–poly(isoprene) block copolymers have been synthesized by using the polymeric catalyst formed by the reaction of poly(isoprenyl-lithium) with tetrabutoxytitanium in toluene at room temperature; an instantaneous polymerization of acetylene is observed leading to the formation of a bloc…
Novel heterocyclic systems in which a porphyrin pyrrole has been ring-expanded to a morpholine derivative (5), ring-contracted to an azetine derivative (6), and converted into the oxazolone derivatives (4) and (9) result from selective oxidation of 2-amino-5,10,15,20-tetraphenylporphyrin (1).
Germs of cholesteric liquids were studied in classical mixtures of nematic compounds (MBBA, PAA) with a twisting substance (cholesterol benzoate). These germs were also studied with different polymers of biological interest : synthetic polypeptides (PBLG), nucleic acids (DNA) and polysaccharides (xanthan). Germs are e…
Nickel oxides characterised by electron microscopy and with different defect concentrations have been studied by X-ray photoelectron spectroscopy. Oxides preannealed in air at 700, 1100 and 1450 °C were examined after heating in vacuo in the spectrometer between 20 and 500 °C. High-binding-energy components of O(1s) s…
We propose and investigate the properties of a model of pattern formation in crystal growth. The principal dynamical variables in this model are the curvature of the solidification front and the thickness (or heat content) of a thermal boundary layer, both taken to be functions of position along the interface. This mo…