Crystallography for study of concrete
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Polymorphism of Ga2O3 and the System Ga2O3—H2O
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolymorphism of Ga2O3 and the System Ga2O3—H2ORustum Roy, V. G. Hill, and E. F. OsbornCite this: J. Am. Chem. Soc. 1952, 74, 3, 719–722Publication Date (Print):February 1, 1952Publication History Published online1 May 2002Published inissue 1 February 1952https://pubs.acs.org…
XIV. The distribution of electrons round impurities in monovalent metals
Summary A theoretical investigation is made of the distribution of electrons round a positively charged impurity dissolved in a monovalent metal. Applications are made to dissolved hydrogen, where the impurity is a proton, and to atoms such as zinc, gallium, etc., which are usually considered to contribute their elect…
Theory of Conductivity of Semiconductors
The author's older theory of conduction in polarizable media is generalized in such a way as to include rectification. An electronic component (positive holes or electrons) and an ionic component (negative or positive ions) are taken into account. The former are subjected to the boundary conditions of the MottSchottky…
High Capacity Magnesium Dry Cells
Magnesium dry cells patterned after the conventional Leclanché cell now appear to be worthy of acceptance in many applications. The cell contains a magnesium alloy anode, , magnesium bromide electrolyte inhibited with lithium chromate, and a paper separator. The cell is characterized chiefly by very high capacity, par…
Binding energies for electrons of different types
The binding e nergy of an electro n of given type in any state of a neutral or ionized atom ~a.~ b~ defi,ned as that required to remove it a long successive terms of a spectral series to Its I1l11It. 'I he data regardll1g e lectron configurations and limits collected in Atom ic Energy Leve!s, Vo lumes I and II! permit…
La structure du borure de nickel Ni b
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857. The potassium thorium fluorides
W. J. Asker, E. R. Segnit and A. W. Wylie, J. Chem. Soc., 1952, 4470 DOI: 10.1039/JR9520004470
Time‐dependence of boundary tensions of solutions. II. Experimental determination of the kinetics and equilibrium of adsorption at liquid‐liquid interfaces
Abstract Boundary tensions have been measured by the method of pendent drops for the interfaces between water and solutions of long‐chain fatty acids in hexane over a wide range of concentrations. At low concentrations the interfacial tensions were independent of the age of the surface. But above what appeared to be a…
Ozonization Studies of Coal Constitution
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOzonization Studies of Coal ConstitutionC. R. Kinney and L. D. FriedmanCite this: J. Am. Chem. Soc. 1952, 74, 1, 57–61Publication Date (Print):January 1, 1952Publication History Published online1 May 2002Published inissue 1 January 1952https://pubs.acs.org/doi/10.1021/ja0112…
The Thermal Dependence of the Elastic Moduli of Polycrystalline Graphite
Young's modulus and the shear modulus of grade SA-25 molded graphite and grade AUF extruded graphite were measured as functions of temperature in the range from 25°C to 2000°C. In the case of the extruded material, variations of the two moduli with position and direction relative to the axis of extrusion were also inv…
908. Compounds of curcumin and boric acid. Part III. Infra-red studies of rosocyanin and allied compounds
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The Temperature Dependence of the Solubility of Solid Nonelectrolytes
The solubilities of nonelectrolytes in solutions from which chemical interactions are absent, when plotted as logarithm of mole fraction vs logarithm of absolute temperature, yield practically straight lines except near the melting point of the solute. This offers a superior method of smoothing out solubility data and…
THE MECHANICAL CHARACTERISTICS OF PNEUMATIC TIRES
AN EXPOSITION OF EXISTING KNOWLEDGE OF MECHANICAL PROPERTIES, CHARACTERISTICS AND BEHAVIOR OF PNEUMATIC TIRES IS PRESENTED. QUESTIONS OF TIRE TECHNOLOGY ARE NOT DISCUSSED. THE ROLLING PROCESS, VERTICAL AND HORIZONTAL LOAD-DEFLECTION CHARACTERISTICS, BEHAVIOR DURING BRAKING AND SIDEWAYS MOTION, ROLLING RESISTANCE AND H…
Column Behavior Under Conditions of Impact
The magnitude of the stress introduced into a long slender bar t>y velocity impact depends only upon the conditions of impact. Thus, buckling of this bar under impact loading can only take place after the compressive stress wave has propagated over a critical'' length of the bar. Column behavior under impact is studie…
The calcination of dolomite. Part II.—The thermal decomposition of dolomite
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The Diffraction of X-Rays by Distorted-Crystal Aggregates III: Remarks on the Interpretation of the Fourier Coefficients
The line profile of the h th order reflection from a set of lattice planes is known to be given by a Fourier series with coefficients A(h,m)=N(m)J(h,m) . The function N(m) depends on the particle shapes and sizes, and J(h,m) depends on the state of strain Neither can be completely determined from the experimental Four…
The Uranium-Carbon System
An investigation of the uranium‐carbon system has been made and a constitutional diagram drawn on the basis of melting point, x‐ray, and metallographic data. Three carbides of uranium have been detected and identified: , , and . No compounds have been found containing a carbon content higher than that of . and are com…
Kinetics of Decomposition of Nitric Oxide at Elevated Temperatures. I. Rate Measurements in a Quartz Vessel
The rate of thermal decomposition of nitric oxide has been measured in a quartz vessel from 872 to 1275°K. The reaction follows a second-order rate law over the range of temperatures studied. Variations in the surface-to-volume ratio of the reaction vessel indicate the predominance of a heterogeneous mechanism at temp…
A Method for Determining Young's Modulus of Glass at Elevated Temperatures
Because of the experimental difficulties imposed by the prominence of delayed elastic and viscous effects, little investigation has been made of the instantaneous elastic modulus of soda‐lime‐silica glasses above approximately 500°C. The method described in this paper provides a means of measuring the Young's modulus…