Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPlasticizers for Cellulose Acetate and Cellulose Acetate ButyrateC. R. Fordyce and I. W. A. MeyerCite this: Ind. Eng. Chem. 1940, 32, 8, 1053–1060Publication Date (Print):August 1, 1940Publication History Published online1 May 2002Published inissue 1 August 1940https://pubs.…
A bstract Samples of three purified illites, one purified montmorillonite, and one natural clay containing montmorillonite, quartz, and limonite were heated at successive temperatures up to 1400°C. X‐ray and optical determinations were made on all samples. The changes that take place in the clay minerals, illite and m…
Abstract Die Zustandsdiagramme der Zweistoffsysteme Germanium/Arsen, Germanium/Antimon und Germanium/Wismut wurden untersucht.
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 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…
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…
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…
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…
(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.
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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.