Materials Literature
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The thermal conductivity of glasses decreases with decreasing temperature, while the conductivity of crystalline substances increases with decreasing temperature. The behavior of glasses is interpreted in terms of an approximately constant free path for the lattice phonons, so that the conductivity decreases roughly w…
The compounds Ce2S3, La2S3, Pu2S3, Ac2S3 and Am2S3 are shown to be iso-structural. The structure is cubic with sixteen sulfur atoms and 10⅔ metal atoms per unit cube. The unit-cell constant for the prototypic compound Ce2S3 is a = 8.6173 ± 0.0005 kX. The metal atoms are randomly distributed over twelve-fold positions…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe decomposition of silver oxide—An autocatalytic reaction.George C. Hood and George W. Murphy Cite this: J. Chem. Educ. 1949, 26, 3, 169Publication Date (Print):March 1, 1949Publication History Received3 August 2009Published online1 March 1949Published inissue 1 March 1949…
Progress of Theoretical Physics Vol. 1 No. 4 (1946) pp. 109–124 On the Effect of the Field Reactions on the Interaction of Mesotrons and Nuclear Particles, II Shin-ichirô Tomonaga Progress of Theoretical Physics Vol. 2 No. 1 (1947) pp. 6–24 On the Effect of the Field Reactions on the Interaction of Mesotrons and Nucle…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCompounding Rubber with Petroleum Products - Correlation of Chemical Characteristics with Compounding Properties and Analysis of Petroleum Products Used as Compounding Ingredients in RubberFritz S. Rostler and Heinz W. SternbergCite this: Ind. Eng. Chem. 1949, 41, 3, 598–608…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDielectric Properties and Ultraviolet Absorption Spectra of Addition Compounds of Sulfur Dioxide and Sulfur Trioxide with Tertiary AminesJ. A. Moede and Columba. CurranCite this: J. Am. Chem. Soc. 1949, 71, 3, 852–858Publication Date (Print):March 1, 1949Publication History…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCONDENSATION OF AROMATIC ALDEHYDES WITH γ-PICOLINE METHIODIDEARTHUR P. PHILLIPSCite this: J. Org. Chem. 1949, 14, 2, 302–305Publication Date (Print):March 1, 1949Publication History Published online1 May 2002Published inissue 1 March 1949https://pubs.acs.org/doi/10.1021/jo01…
A study of the activation energy associated with the viscous intercrystalline slip shows that the conventional theories of grain boundary, e.g., the intercrystalline amorphous cement theory and the abrupt transitional theory, are both untenable. A grain boundary model is described in which the transition region at the…
A bstract A phase‐equilibrium diagram of the system BaO–B 2 O 3 has been constructed from data obtained essentially by the quenching method. Four congruently melting compounds were identified: BaO·4B 2 O 3 , melting at 879 ± 5°C.; BaO·2B 2 O 3 , melting at 900 · 5°C.; BaO·B 2 O 3 , melting at 1095 ± 5°C.; and 3BaO·B 2…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Photochemistry of Cellulose. Effects of Water Vapor and Oxygen in the Far and Near Ultraviolet RegionsHerbert F. Launer and William K. WilsonCite this: J. Am. Chem. Soc. 1949, 71, 3, 958–962Publication Date (Print):March 1, 1949Publication History Published online1 May 2…
Many of the methods used to study the fine structure of cellulose are tedious and not suitable for routine use. In the present work, an equilibrium moisture regain method which can be carried out on a large scale with a high degree of accuracy has been developed. The method is illustrated by a wide variety of cellulos…
Abstract This paper contains an approximate three-dimensional solution for the stress distribution around a circular cylindrical hole in an infinite plate of arbitrary thickness, which is otherwise in a uniform state of plane stress parallel to the bounding planes. The approach used rests on a modification of the Ritz…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAn Improved Laboratory Preparation of Copper-Chromium Oxide CatalystThomas W. RienerCite this: J. Am. Chem. Soc. 1949, 71, 3, 1130Publication Date (Print):March 1, 1949Publication History Published online1 May 2002Published inissue 1 March 1949https://pubs.acs.org/doi/10.102…
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