Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIntroduction to Nuclear Engineering.W. R. KanneCite this: J. Am. Chem. Soc. 1955, 77, 5, 1394Publication Date (Print):March 1, 1955Publication History Published online1 May 2002Published inissue 1 March 1955https://pubs.acs.org/doi/10.1021/ja01610a108https://doi.org/10.1021/…
The system BaO‐TiO 2 was investigated using quenching, strip‐furnace, and thermal techniques. Five compounds were found to exist in the system: Ba 2 TiO 4 , BaTiO 3 , BaTi 2 O 5 , BaTi 3 O 7 , and BaTi 4 O 9 . Of these, only barium metatitanate (BaTiO 3 ) melts congruently (at 1618°C.). The dititanate melts incongruen…
Los autores presntan los resultados do sus estudios sobro las dimensiones apropiadas que se han de dar a los hornos rotatorios, en relación al transporte del material y a las condiciones de transmisión del calor; dichos resultados prueban la existencia de una regularidad perfecta. Estudian, especielmente, la influenci…
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El propósito fundamental de asta investigación ha sido el determinar cómo influyen sobre el color de los productos cocidos los constituyentes de la arcilla, y, si es posible, determinar la naturaleza de loa compuestos y soluciones sólidas que dan lugar a las diversas coloraciones. También se realizaron ensayos con el…
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ADVERTISEMENT RETURN TO ISSUEPREVArticleDielectric Materials and Applications.Charles P. SmythCite this: J. Am. Chem. Soc. 1955, 77, 6, 1714Publication Date (Print):March 1, 1955Publication History Published online1 May 2002Published inissue 1 March 1955https://pubs.acs.org/doi/10.1021/ja01611a117https://doi.org/10.10…
The dielectric and thermal properties and lattice dimensions of lead·strontium titanate were investigated, the solid solution being realized in the whole range of molar percentage. It was found that, lead·strontium titanate is also ferroelectric as lead·barium titanate and barium·strontium titanate. As the content of…
The techniques and results of a previous paper are applied to the calculation of the second Born approximation of the one-photon radiative corrections to the scattering of electrons by nuclei. Nonrelativistic and high-energy approximations are calculated explicitly for pure Coulomb scattering. Modifications due to the…
Abstract Man hat eine Anzahl von Daten zur Verfügung, die sowohl auf Laboratoriumsmessungen als auch auf praktischer Erfahrung beruhen und die eine grobe Materialauswahl für eine mit Schwefelsäure arbeitende Apparatur ermöglichen. Was die Laboratoriumsmessungen anbetrifft, so wurden diese früher meistens mit Schwefels…
Abstract While investigating the absorption of carbon dioxide in sodium carbonate–bicarbonate solutions, apparently erratic variations of absorption coefficients were observed in earlier work. In an attempt to find an explanation for these variations, density, relative viscosity, pH and relative surface tension were d…
Ceramic coatings were prepared from materials having low absorption coefficients for thermal neutrons. They were specifically designed for application to typical high‐temperature alloy parts for use in nuclear reactors. Best results were obtained with boron‐free coatings of the frit‐refractory type, in which a high‐ba…
The reflectivity of an ideal metal is calculated for infra-red light by a quantum-mechanical method. It is assumed that the conduction electrons in the metal absorb light by a photoelectric process which takes place near the surface, that these electrons behave as if they are free and that the light within the metal d…
Abstract The structural formulas were determined of very pure specimens of montmorillonite, bei-dellite, saponite, nontronite, hectorite, wolchonskoite, vermiculite, and batavite. The lattice perfection of these minerals and the nature and variation of their crystalline swelling depend significantly on the surface den…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIllumination of cis- and trans-Stilbenes in Dilute SolutionsRobert E. BucklesCite this: J. Am. Chem. Soc. 1955, 77, 4, 1040–1041Publication Date (Print):February 1, 1955Publication History Published online1 May 2002Published inissue 1 February 1955https://pubs.acs.org/doi/10…
Abstract The ethylenediamine‐cellulose complex, previously described by Trogus and Hess, has been reinvestigated with regard to its stability toward a series of solvents and to the differences in the fine structure of the cellulose remaining after its decomposition. It is shown that nonpolar solvents which do not cont…
The concentrations of imperfections in silver halides grown from the melt were investigated by comparing the measured densities with the ideal densities computed from the lattice dimensions. The density defect of the most perfect specimen of silver bromide was $\frac{\ensuremath{\Delta}\ensuremath{\rho}}{\ensuremath{\…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE PREPARATION OF POLYMERIZABLE SILANES CONTAINING ORGANOMETALLIC SUBSTITUENTS IN THE SIDE-CHAINSDIETMAR SEYFERTH and EUGENE G. ROCHOWCite this: J. Org. Chem. 1955, 20, 2, 250–256Publication Date (Print):February 1, 1955Publication History Published online1 May 2002Publishe…
A decrease in the y-ray radiation yield of ferric ions, GFe+++, from 15.6 to 0.66 occurs on the addition of cupric sulfate to aqueous air-saturated ferrous sulfate solutions (1). This yield of 0.66 is attributed to an oxidation of the ferrous ion by hydrogen peroxide formed in the y-ray hot spot and is not due to oxid…
Abstract The various proposed structures for polymers derived from benzyl type compounds have been discussed and the likelihood of these structures considered in the light of a study of their preparation and properties. Both the para substituted structure of Shriner and Berger and the pendant structure of Henne and Le…