Nuclear and Radiochemistry
"Nuclear and Radiochemistry." Nuclear Science and Engineering, 81(3), pp. 483–484
Materials Literature
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A Model of Crack Electrochemistry for Steels in the Active State Based on Mass Transport by Diffusion and Ion Migration
A model of the electrochemical conditions in a static crack has been developed for steel in the active state based on the steady‐state mass transport of species by diffusion and ion migration. The main reactions considered were anodic dissolution, hydrolysis of ferrous ions, and cathodic reduction of hydrogen ions and…
Mechanical properties of blends containing HDPE and PP
Abstract The mechanical properties of binary blends of high‐density polyethylene and polypropylene are quite good compared to those for blends of some other immiscible pairs. The property relationships observed depend strongly on the process used to fabricate the blends as shown by comparisons of specimens made by inj…
Investigation of the cellulose/LiCl/dimethylacetamide and cellulose/LiCl/N‐methyl‐2‐pyrrolidinone solutions by 13C NMR spectroscopy
Abstract The cellulose/lithium chloride/dimethylacetamide (DMAc) and cellulose/lithium chloride/ N ‐methyl‐2‐pyrroilidinone (NMP) solutions were investigated by 13 C NMR spectroscopy. Well‐resolved spectra were obtained for both solutions and indicated that cellulose was present in these systems in the form of underiv…
Preparation and characterization of iron(III)- and rhodium(III)-containing heteropolytungstates. Identification of novel oxo-bridged iron(III) dimers
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…
Simplified Calculation of CACO3 Saturation at High Temperatures and Pressures in Brine Solutions
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…
Crystallization and Transformation of Zirconia Under Hydrothermal Conditions
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…
Analysis of the mechanism of copolymerization of styrene and acrylonitrile
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 effect of the metal atom on the absorption spectra of phthalocyanine films
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…
Corrosion of Painted Metals—A Review
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…
Sinterable Ceramic Powders from Laser‐Driven Reactions: II, Powder Characteristics and Process Variables
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…
Kinetics of ozone decomposition: a dynamic approach
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
"Fouling of Heat Transfer Equipment." Nuclear Technology, 58(1), pp. 121–122
Synthesis and stability relations of magnesium idocrase
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…
An anomaly in the infrared absorption spectrum of synthetic diamond
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…
Acute Inhalation Toxicity of Some Halogenated and Non-halogenated Hydrocarbons
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…
Onset of convection in a variable-viscosity fluid
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…
Electrochemistry of Prussian Blue Modified Electrodes: An Electrochemical Preparation Method
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…
Sinterable Ceramic Powders from Laser‐Driven Reactions: I, Process Description and Modeling
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…
Multicoated gratings: a differential formalism applicable in the entire optical region
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…