Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHigh-Temperature Heat Contents of the Metatitanates of Calcium, Iron and Magnesium1B. F. Naylor and O. A. CookCite this: J. Am. Chem. Soc. 1946, 68, 6, 1003–1005Publication Date (Print):June 1, 1946Publication History Published online1 May 2002Published inissue 1 June 1946ht…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Configuration of Sulfoxides. Mixed Crystals of Sulfoxides with SulfonesHeinrich Rheinboldt and Ernesto GiesbrechtCite this: J. Am. Chem. Soc. 1946, 68, 6, 973–978Publication Date (Print):June 1, 1946Publication History Published online1 May 2002Published inissue 1 June 1…
This paper presents the melting relations for the entire system sulfursilver, together with a study of the transition behavior of silver sulfide. Silver sulfide melts at 838±2°C and undergoes two transitions in the solid state, each of which occurs at variable temperatures over a limited range of composition. The mean…
A method has been established for the measurement of the viscosity of high polymers at low rates of shear in the range 104 to 109 poises using a parallel plate plastometer. This is based on a mathematical criterion for separating the viscous portion of the deformation from the ``elastic'' and ``delayed elastic'' compo…
Abstract It is well known that calcium sulphate plaster products deteriorate under persistent damp conditions. This paper deals with the quantitative measurement or the effect of water on strength when present in amounts varying from the small amounts picked up from a damp atmosphere to full saturation. The effects ar…
Abstract A micromethod is described for density determinations of artificial cellulose fibers by the floating method, in carbon tetrachloride in a dry and air‐free atmosphere, permitting an accuracy of one part per thousand. The density is derived from the temperature at which the samples neither sink nor float. This…
The crystallization and melting of unvulcanized natural rubber in the unstretched state have been investigated at different temperatures. Change of volume has been used as a quantitative measure of the extent of crystallization, and mercury-filled dilatometers containing the rubber have been used for the volume measur…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTQuaternary Ammonium Salts as Germicides. I. Non-acylated Quaternary Ammonium Salts Derived from Aliphatic Amines1R. S. Shelton, M. G. van Campen, C. H. Tilford, H. C. Lang, L. Nisonger, F. J. Bandelin, and H. L. RubenkoenigCite this: J. Am. Chem. Soc. 1946, 68, 5, 753–755Pub…
A molecular theory is developed to describe quantitatively the permanent set taking place in thin samples of vulcanized natural and synthetic rubbers held at constant extension at elevated temperatures. Permanent set is considered to be the result of the formation, through the action of molecular scission and cross-li…
Abstract In order to establish the conditions under which the buffering of insoluble substance may most usefully be studied, suspensions of fibre cellulose, hemicellulose and xylan have been examined to determine the relationship between pH and the degree of dissociation of their carboxyl groups. The materials were su…
Article Zur Kenntnis des Aufbaus und der Kristallchemie einiger Edelmetallsysteme (Palladium-Blei, Palladium-Zinn, Iridium-Zinn, Rhodium-Zinn, Platin-Blei) was published on April 1, 1946 in the journal International Journal of Materials Research (volume 37, issue 4-5).
(1946). 8—SOME OBSERVATIONS UPON THE EFFECT OF COLOUR ON THE ABSORPTION AND EMISSION OF RADIATION BY A TEXTILE FABRIC. Journal of the Textile Institute Transactions: Vol. 37, No. 4, pp. T113-T120.
(1946). XXV. Crystal habit and internal structure.—II. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 37, No. 267, pp. 217-236.
The principal features and mechanisms responsible for the transfer of free electrical charge to aircraft, as it flies through various types of precipitation, are examined. The charging characteristics of a typical airplane flying through dry snow are given and correlated with reliable quantitative data secured on the…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEnergy Additivity in Oxygen-containing Crystals and Glasses.Maurice L. Huggins and Kuan-Han SunCite this: J. Phys. Chem. 1946, 50, 4, 319–328Publication Date (Print):April 1, 1946Publication History Published online1 May 2002Published inissue 1 April 1946https://doi.org/10.1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrgano-Silicon Polymers. The Cyclic Dimethyl Siloxanes*M. J. Hunter, J. F. Hyde, E. L. Warrick, and H. J. FletcherCite this: J. Am. Chem. Soc. 1946, 68, 4, 667–672Publication Date (Print):April 1, 1946Publication History Published online1 May 2002Published inissue 1 April 19…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffects of Molecular Structure on Physical Properties of Butyl Rubber.Paul J. FloryCite this: Ind. Eng. Chem. 1946, 38, 4, 417–436Publication Date (Print):April 1, 1946Publication History Published online1 May 2002Published inissue 1 April 1946https://pubs.acs.org/doi/10.102…
Measurements have been made of the change of resistance of ferromagnetic alloys of high coercivity when exposed to longitudinal and transverse magnetic fields. The changes in the cases of the permanent magnet materials alni, alnico (cast and sintered) and alcomax II are in marked contrast to those of pure ferromagneti…
Abstract Based on the work of Eyring and others relating to the creep problem, a velocity-modified temperature is developed for representing by means of a single variable the combined effects of strain rate and temperature on the stress reaction in a tension specimen. Available data are analyzed, indicating that the v…
Abstract Natural and synthetic rubber can be vulcanized with several vulcanizing agents other than sulfur, though sulfur and sulfur compounds are the only agents of practical value. A combination of rubber and synthetic resin can be successful only when chemical bonds are formed. It has been found that this is the cas…