Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and characterization of iron(III)- and rhodium(III)-containing heteropolytungstates. Identification of novel oxo-bridged iron(III) dimersFrans Zonnevijlle, Claude M. Tourne, and Gilbert F. TourneCite this: Inorg. Chem. 1982, 21, 7, 2751–2757Publication Date (Prin…
Summary A simplified method to calculate CaCO3 saturation is developed using only commonly measured field parameters. The calculated saturation index, Is, and pH values are accurate at high temperatures and pressures in brines and are compared with less sophisticated and more complex calculations. The final forms of I…
During constant‐rate heating to 350°C in concentrated NaOH solutions, cubic ZrO 2 crystallized at ∼120°C from hydrated amorphous ZrO 2 ; these One cubic ZrO 2 particles abruptly changed into needlelike monoclinic ZrO 2 single crystals at 300°C. Crystallization and phase transformation were studied by XRD, TEM, and EPM…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAnalysis of the mechanism of copolymerization of styrene and acrylonitrileD. J. T. Hill, J. H. O'Donnell, and P. W. O'SullivanCite this: Macromolecules 1982, 15, 4, 960–966Publication Date (Print):July 1, 1982Publication History Published online1 May 2002Published inissue 1…
The visible and near ultraviolet absorption spectra have been measured for thin films of H2Pc [C32H18N8], MgPc, FePc, CoPc, CuPc, and ZnPc. Magnesium and iron phthalocyanine have very different absorption spectra. For most of the phthalocyanines, structure of magnitude 0.21 eV is seen on the visible and Soret bands. A…
Seven types of corrosion and precorrosion of painted metals are reviewed: blistering, early rusting, flash rusting, anodic undermining, filiform corrosion, cathodic delamination, and wet adhesion. The importance of the nature of the interfacial region between the coating and the metal is emphasized. Ten unsolved probl…
Si, Si 3 N 4 , and SiC powders which possess a unique set of characteristics were produced by a laser‐driven gas‐phase synthesis process. The powders have a fine particle size (<0.1 μm), are spherical, have a narrow range of particle sizes, are free of hard agglomerates, have a high degree of phase purity, and have…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics of ozone decomposition: a dynamic approachMirat D. Gurol and Philip C. SingerCite this: Environ. Sci. Technol. 1982, 16, 7, 377–383Publication Date (Print):July 1, 1982Publication History Published online1 May 2002Published inissue 1 July 1982https://doi.org/10.1021…
"Fouling of Heat Transfer Equipment." Nuclear Technology, 58(1), pp. 121–122
Hydrothermal investigation of the bulk compositions Ca 19 Mg 4 Al 10 Si 17 O 68 (OH) 8 and Ca 19 Mg 3 Al 10 Si 18 O 68 (OH) 10 (+ or -4SiO 2 + H 2 O) has been conducted by using conventional cold seal and internally heated pressure apparatus at 320 degrees to 900 degrees C and 1 to 2 kb P fluid . Magnesium idocrase wa…
Careful measurements of infrared spectra of synthetic diamonds bring to light two apparently contradictory observations. On the one hand, it is shown that there is an excellent correlation between the strengths of the nitrogen-induced absorption at 1130 cm−1 and of the local-mode absorption peak at 1344 cm−1. On the o…
1 The relative potency of effect of a wide range of halogenated and unsubstituted hydrocarbons on the central nervous system (CNS) and the heart of experimental animals have been determined. 2 The chemicals used caused either stimulation or depression of the rat CNS after 10 minutes' inhalation of concentrations rangi…
The Rayleigh number R, in a horizontal layer with temperature-dependent viscosity can be based on the viscosity at T 0 , the mean of the boundary temperatures. The critical Rayleigh number Roc for fluids with exponential and super-exponential viscosity variation is nearly constant at low values of the ratio of the vis…
A new type of Prussian blue modified electrode is described. The Prussian blue modified electrode is electrochemically prepared in a solution of ferric‐ferricyanide. The amount of Prussian blue on electrodes such as platinum, glassy carbon, and SnO 2 is easily controlled by changing the current density, the electrode…
A novel process is discussed for producing a wide variety of ceramic powders with unique physical and chemical characteristics. Silicon, Si 3 N 4 , and SiC powders were produced from CO 2 laser‐heated gas‐phase reactants; a detailed description of this laser‐driven process is presented. The physical, chemical, and cry…
We present a new formalism for the diffraction of an electromagnetic plane wave by a multicoated grating. Its basic feature lies in the use of a coordinate system that maps all the interfaces onto parallel planes. Using Maxwell’s equations in this new system leads to a linear system of differential equations with cons…
A ‘moth eye’ antireflection surface is a very fine array of protuberances which behaves as a gradation of refractive index, and which substantially reduces the reflectance. The reflection and transmission properties of such surfaces are described, and are shown to be equal to those of the best multilayer antireflectio…
A scheme is presented for deriving atomic force constants that is fairly accurate, yet simple enough to allow determination of the dynamical matrix of bulk solids, relaxed and reconstructed surfaces, defects, etc. For illustrative purposes, the method is applied to bulk SiC to predict the phonon dispersion curves thro…
Grafting reactions to cellulose and its derivatives began in the early 1950's. There has been intense research and development activity in the field since those early days and many hundreds of papers and patents have been published. In spite of all this effort there has been comparatively little commercialization of t…
Grafting reactions to cellulose and its derivatives began in the early 1950's. There has been intense research and development activity in the field since those early days and many hundreds of papers and patents have been published. In spite of all this effort there has been comparatively little commercialization of t…