Über Zweistoffsysteme mit Germanium. II. Germanium/Arsen, Germanium/Antimon, Germanium/Wismut
Abstract Die Zustandsdiagramme der Zweistoffsysteme Germanium/Arsen, Germanium/Antimon und Germanium/Wismut wurden untersucht.
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THE RELATION OF DEFECTS IN ENAMEL COATINGS TO HYDROGEN IN STEEL*
A bstract The effects of hydrogen as functions of time, temperature, and impurities in steel are described and experimentally demonstrated. Experimental evidence is presented to show that the blistering and boiling action over carbide areas in steel are due principally to hydrogen that associates with the carbon. Stee…
The Moisture Relations of Textile Fibres at Elevated Temperatures
The moisture contents of ten kinds of textile fibres in the form of specially prepared yarns were determined when the fibres were in equilibrium with air for a series of relative humidities and tem peratures. Data were obtained for both "desorption." and "ad sorption," the yarns being brought to equilibrium from a wet…
Flow of a Gas Through Porous Media
Kozeny's approximate solution to the problem of fluid flow through porous media is developed and the result is checked by experimental data on air flow through plugs of cotton, wool, rayon, and glass wool fibers. The solution gives WA=kγ02μ(τσ)(1−c)32c2(−δp2δx)for the isothermal linear flow of a gas. W/A is the macros…
Phase‐relations in the system tellurium—silver
The melting‐point diagram of the system tellurium—silver may be regarded as composed of two adjoining systems, (1) the system Te‐Ag 2 Te, and (2) Ag 2 Te‐Ag. In the first part of the system the liquidus curve first drops from the melting point of Te at 451°C to a eutectic located at 351°C, 33 atomic per cent Ag. From…
Multiple Scattering of Electrons. II
The series developed in a previous paper representing the distribution for the multiple scattering of electrons has been evaluated numerically for a large number of cases; the results are given in Table I. An approximate expression is found for the value of $sin \ensuremath{\theta}$ averaged over the distribution per…
6—THE DENSITY AND SWELLING OF SILK FILAMENTS IN RELATION TO MOISTURE CONTENT
(1940). 6—THE DENSITY AND SWELLING OF SILK FILAMENTS IN RELATION TO MOISTURE CONTENT. Journal of the Textile Institute Transactions: Vol. 31, No. 6, pp. T69-T80.
Hydration Mechanism of the Clay Mineral Montmorillonite Saturated with Various Cations1
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydration Mechanism of the Clay Mineral Montmorillonite Saturated with Various Cations1S. B. Hendricks, R. A. Nelson, and L. T. AlexanderCite this: J. Am. Chem. Soc. 1940, 62, 6, 1457–1464Publication Date (Print):June 1, 1940Publication History Published online1 May 2002Publ…
Galvano- and Thermomagnetic Phenomena in Iron and Nickel
The four transverse galvano- and thermomagnetic effects (Hall, Ettingshausen, Nernst, and Righi-Leduc), the Thomson coefficient, and the thermal and electrical conductivities have been measured in bars of nickel and electrolytic iron. Three independent relations between the effects, derived by Sommerfeld on the basis…
Properties of Rochelle Salt
In a qualitative way the anomalous properties of Rochelle salt can be explained on the basis of four different theories: ($a$) on the dipole theory, ($b$) by assuming polymorphic transitions at the Curie points, ($c$) by postulating an anomalous piezoelectric effect, and ($d$) with an inter-action theory which assumes…
Viscosities of Linear Polyesters. An Exact Relationship between Viscosity and Chain Length
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTViscosities of Linear Polyesters. An Exact Relationship between Viscosity and Chain LengthPaul J. FloryCite this: J. Am. Chem. Soc. 1940, 62, 5, 1057–1070Publication Date (Print):May 1, 1940Publication History Published online1 May 2002Published inissue 1 May 1940https://pub…
An X-Ray Method of Determining Rates of Diffusion in the Solid State
Gold and copper were simultaneously deposited in vacuum by vaporization on a plate of glass, the copper being deposited at a uniform rate while the gold was deposited in one hundred stratified layers in the copper by alternately raising and lowering the temperature of the molybdenum vaporizing trough containing the bo…
Evaluation of Nitrocellulose Lacquer Solvents
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEvaluation of Nitrocellulose Lacquer SolventsV. W. Ware and W. M. BrunerCite this: Ind. Eng. Chem. 1940, 32, 4, 519–524Publication Date (Print):April 1, 1940Publication History Published online1 May 2002Published inissue 1 April 1940https://pubs.acs.org/doi/10.1021/ie50364a0…
The Specific Heats at Low Temperatures of Tantalum Oxide and Tantalum Carbide1
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Specific Heats at Low Temperatures of Tantalum Oxide and Tantalum Carbide1K. K. KelleyCite this: J. Am. Chem. Soc. 1940, 62, 4, 818–819Publication Date (Print):April 1, 1940Publication History Published online1 May 2002Published inissue 1 April 1940https://pubs.acs.org/d…
X-ray Studies of Crystallite Orientation in Cellulose Fibers. III. Fiber Structures from Coagulated Cellulose.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTX-ray Studies of Crystallite Orientation in Cellulose Fibers. III. Fiber Structures from Coagulated Cellulose.Wayne A. SissonCite this: J. Phys. Chem. 1940, 44, 4, 513–529Publication Date (Print):April 1, 1940Publication History Published online1 May 2002Published inissue 1…
X-ray Diffraction Study of the Structure of Glass.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTX-ray Diffraction Study of the Structure of Glass.B. E. WarrenCite this: Chem. Rev. 1940, 26, 2, 237–255Publication Date (Print):April 1, 1940Publication History Published online1 May 2002Published inissue 1 April 1940https://pubs.acs.org/doi/10.1021/cr60084a007https://doi.o…
Some Relations Between Molecular Structure and Plasticizing Effect
The inter-relation between the chemical constitution and structure of plasticizers and plastics is discussed. The results obtained with sulfonamide, phthalate and phosphate plasticizers in cellulose acetate compositions are used as examples and the author speculates on the possibility of formulating general rules from…
Note on the method of molecular orbitals
It is shown that the usual molecular orbital treatment for the mobile electrons in unsaturated hydrocarbon molecules is not always satisfactory, since it does not yield a self-consistent field. The conditions under which the field is self-consistent are analysed, and are shown to be satisfied in many cases.
Multiple Scattering of Electrons
A theoretical treatment of multiple Rutherford scattering is given which is exact if one considers electrons with the same total path length in the scatterer. The approximations necessary for the actual solution of the problem for a thin scatterer can be shown to have little effect on the results for small angle scatt…
The equilibrium and lattice-spacing relations in the system magnesium-cadmium
Abstract The alloys of magnesium and cadmium are of great interest, since both metals have the same valency, and almost the same atomic volume, but the axial ratios of their close-packed hexagonal structures differ markedly, being 1.885(2) for cadmium, and 1.6237 for magnesium. The equilibrium diagram of the system ha…