Constitution of colloidal silica
P. C. Carman, Trans. Faraday Soc., 1940, 36, 964 DOI: 10.1039/TF9403600964
Materials Literature
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The influence of elastic strain on the shape of particles segregating in an alloy
An estimate is given of the way in which the strain energy associated with a particle of precipitate depends upon the shape of the particle. It is shown that the energy can only be reduced if the precipitate forms in flat plates, and then only in the case of particles which have broken away from the lattice of the mat…
Internal friction in solids
The various causes of internal friction in solids are discussed. Internal friction depends in general on thermal currents which occur owing both to the inhomogeneous strains set up by the vibrations in the solid, and to the variations in the elastic constants from point to point in polycrystalline materials. The influ…
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…
Ferromagnetic Anisotropy of Iron and Iron-Rich Silicon Alloys
The ferromagnetic anisotropy constant ${K}_{1}$ has been accurately measured by the magnetic torque method for a group of iron alloys containing up to 13.7 atomic percent silicon. The points fall on two intersecting straight lines given by the equations: ${{K}_{1}\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5…
Refractive Indices of Textile Fibres: Double Variation Method for the Determination of
It has long been the opinion of many textile technolo gists that some precise and easily duplicated means of determining the index of refraction would be of paramount value in investigating the structure of textile fibres as well as assisting in their positive identification. Such other phenomena as the effect of mois…
La fase gamma della lega litio-piombo, Li10Pb3. Stechiometria e struttura
Article La fase gamma della lega litio-piombo, Li10Pb3. Stechiometria e struttura was published on December 1, 1939 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 101, issue 1-6).
Hydrogen Bonds Involving the C-H Link. VIII.1 The Solubilities of Completely Halogenated Methanes in Organic Solvents
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydrogen Bonds Involving the C-H Link. VIII.1 The Solubilities of Completely Halogenated Methanes in Organic SolventsM. J. Copley, G. F. Zellhoefer, and C. S. MarvelCite this: J. Am. Chem. Soc. 1939, 61, 12, 3550–3552Publication Date (Print):December 1, 1939Publication Histo…
HIGH‐TEMPERATURE VISCOSITIES OF SODA‐SILICA GLASSES*
A bstract A careful study of the viscosities of glasses composed of silica and between 22 and 40% soda shows that viscosity‐composition isotherms are smooth curves. The sharp minima at about 34% Na 2 O (and possibly at about 26% Na 2 O) observed by Preston 1 are found to be entirely absent. Neither time nor shearing s…
CRITICAL STUDY OF THE DIFFERENTIAL THERMAL METHOD FOR THE IDENTIFICATION OF THE CLAY MINERALS*
A bstract An apparatus is described for studying clay minerals by the differential thermal method, which has some advantages over previous types of apparatus. Thermal curves are given for many of the pure clay minerals for use as standards of identification. The use of this method quantitatively for the determination…
Alkylation and the Action of Aluminum Halides on Alkylbenzenes.
ADVERTISEMENT RETURN TO ISSUEArticleNEXTAlkylation and the Action of Aluminum Halides on Alkylbenzenes.Dorothy V. NightingaleCite this: Chem. Rev. 1939, 25, 3, 329–376Publication Date (Print):December 1, 1939Publication History Published online1 May 2002Published inissue 1 December 1939https://pubs.acs.org/doi/10.1021…
The Crystal Structure of TlSe, Thallous Thallic or Thallosic Selenide
Article The Crystal Structure of TlSe, Thallous Thallic or Thallosic Selenide was published on December 1, 1939 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 101, issue 1-6).
The Dielectric Constants of Polar Liquids.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Dielectric Constants of Polar Liquids.J. Norton. WilsonCite this: Chem. Rev. 1939, 25, 3, 377–406Publication Date (Print):December 1, 1939Publication History Published online1 May 2002Published inissue 1 December 1939https://pubs.acs.org/doi/10.1021/cr60082a002https://do…
Experimente zur Messung und Erklärung der sogenannten Kristallisationskraft
Article Experimente zur Messung und Erklärung der sogenannten Kristallisationskraft was published on December 1, 1939 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 101, issue 1-6).
The Density, Thermal Expansion, Vapor Pressure, and Refractive Index of Styrene, and the Density and Thermal Expansion of Polystyrene
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Density, Thermal Expansion, Vapor Pressure, and Refractive Index of Styrene, and the Density and Thermal Expansion of PolystyreneWinton. Patnode and W. J. ScheiberCite this: J. Am. Chem. Soc. 1939, 61, 12, 3449–3451Publication Date (Print):December 1, 1939Publication His…
Kinetics of Polyesterification: A Study of the Effects of Molecular Weight and Viscosity on Reaction Rate
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics of Polyesterification: A Study of the Effects of Molecular Weight and Viscosity on Reaction RatePaul J. FloryCite this: J. Am. Chem. Soc. 1939, 61, 12, 3334–3340Publication Date (Print):December 1, 1939Publication History Published online1 May 2002Published inissue…
Kinetics of Phase Change. I General Theory
The theory of the kinetics of phase change is developed with the experimentally supported assumptions that the new phase is nucleated by germ nuclei which already exist in the old phase, and whose number can be altered by previous treatment. The density of germ nuclei diminishes through activation of some of them to b…
Zur Kenntnis der Hydrosulfide und Hydroselenide der Alkalimetalle
Abstract 1. Die Hydrosulfide und Hydroselenide von Natrium, Kalium, Rubidium und Cäsium wurden analysenrein dargestellt.
Magnetic Studies of Solid Solutions. I. Methods of Observations and Preliminary Results on the Precipitation of Iron from Copper
This paper represents the first step in an extended program whose aim is the investigation of solid solutions with special reference to the structures that may be formed by heat treatment and plastic deformation. It is hoped to include eventually observations in high fields (100,000 gauss) and at low temperatures. The…
The Diffraction of X-Rays by Small Crystalline Particles
The problem of the diffraction of x-rays by small crystalline particles is discussed by the methods of Fourier analysis, and the calculation of the intensity of the x-ray scattering from a single particle is reduced to the evaluation of a simple Fourier transform. This approach leads immediately to the interference fu…