Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTValence in the Boron HydridesWilliam N. LipscombCite this: J. Phys. Chem. 1957, 61, 1, 23–27Publication Date (Print):January 1, 1957Publication History Published online1 May 2002Published inissue 1 January 1957https://pubs.acs.org/doi/10.1021/j150547a005https://doi.org/10.10…
The ratio of piezoelectric coefficients $\ensuremath{-}\frac{{d}_{33}}{{d}_{31}}$ was found to decrease from about 2.5 for polarized barium titanate ceramic of high porosity to 2.2 for porosity near zero. The ratio increases up to 2.9 for ceramic with 2% porosity containing 12 weight% calcium titanate. For single crys…
Temperature‐composition relationships have been measured in the and the systems in the areas of liquidus temperatures below 1000°C. A binary eutectic composition of and was observed to melt at 769°C. A ternary eutectic composition of , , and was observed to melt at 672°C.
D. Hadži and M. Škrbljak, J. Chem. Soc., 1957, 843 DOI: 10.1039/JR9570000843
B. Boggiano and E. Clar, J. Chem. Soc., 1957, 2681 DOI: 10.1039/JR9570002681
G. N. Richards and H. H. Sephton, J. Chem. Soc., 1957, 4492 DOI: 10.1039/JR9570004492
Corrosion studies, largely in 0.2M citric acid at 20°C and the boiling point, were made on polycrystalline disks and monocrystalline spheres and disks of Armco iron and type L steel. Preliminary experiments indicated that the (100) face corroded at the slowest rate and the minor faces, of which the (321) is an example…
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G. Machell and G. N. Richards, J. Chem. Soc., 1957, 4500 DOI: 10.1039/JR9570004500
J. A. Elvidge and J. H. Golden, J. Chem. Soc., 1957, 700 DOI: 10.1039/JR9570000700
H. A. Potts and G. F. Smith, J. Chem. Soc., 1957, 4018 DOI: 10.1039/JR9570004018
Current flow, weight loss, and polarization measurements have been carried out on the aluminum‐mild steel and zinc‐mild steel couples in normal NaCl solution at 25°C. Under a wide variety of experimental conditions both aluminum and zinc are anodic to mild steel and completely protect it against corrosion. In both gal…
Abstract Seventeen Ohio surface soils, 25 New York surface soils, and 21 New York subsoils were investigated. Potassium release characteristics were determined by continuous cropping and by four different chemical methods. A continuous leaching method employing the use of 0.01 N HCl gave the highest correlations with…
<I>Marine Algae of the Northeastern Coast of North America</I> by William Randolph Taylor, illustrated by Chin-Chih Jao, is a comprehensive guide on the diverse marine algae found along the northeastern coast of North America. This revised edition updates descriptions and nomenclature, providing an illustrated catalog…
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The fluorescence and phase diagrams of the following Pb‐activated ternary systems were investigated: ; ; ; . Eleven new ternary silicates were identified, some of which proved to be very good base materials for Pb‐activated phosphors with peak emissions ranging from 3000 to 4000Aå.
The lattice constants of primary solid solutions of indium, aluminum, and cadmium in magnesium have been determined as a function of composition. A sharp change in ($\frac{c}{a}$) has been found only for magnesium-indium. The linearity of the ($\frac{c}{a}$) vs concentration curve for magnesium-aluminum has suggested…
The growth of single crystals corresponding to x=0 (high-purity magnetite), x = 0.01 and x = 0.04 in the composition series CoxFe3-xO4 is described. First- and second-order anisotropy constants of these crystals are determined by the torque method over the temperature range 120–450°K. The substitution of small amounts…
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Tensile specimens of oxygen-free polycrystalline copper (99.9911%) were annealed for various periods in vacuo, in the range 500–700°C so as to obtain variations in the grain sizes and yield points. The initial rate of work hardening of all specimens was linear up to strains of about 1.5%, and independent of the magnit…