Materials Literature
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The nature of internal discharges in actual insulation and also on model circuits exposed to alternating voltages is studied by means of a special oscillographic bridge equipment. A theory of the occurrence of these discharges is developed and is shown to agree with the oscillographic observations and to give correctl…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystallization of Vulcanized RubberNorman Bekkedahl and Lawrence A. WoodCite this: Ind. Eng. Chem. 1941, 33, 3, 381–384Publication Date (Print):March 1, 1941Publication History Published online1 May 2002Published inissue 1 March 1941https://pubs.acs.org/doi/10.1021/ie50375a…
This paper describes theoretical and experimental work on the dielectric loss of films of insulating liquids so thin that the motion of ions under an alternating field is limited by the boundaries of the film. Films of this thickness normally occur in porous, impregnated insulation, and lead to a dielectric loss angle…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolymeric Methyl Silicon Oxides1E. G. Rochow and W. F. GilliamCite this: J. Am. Chem. Soc. 1941, 63, 3, 798–800Publication Date (Print):March 1, 1941Publication History Published online1 May 2002Published inissue 1 March 1941https://pubs.acs.org/doi/10.1021/ja01848a046https:…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Solubilization of Water-insoluble Dye in Dilute Solutions of Aqueous Detergents*J. W. McBain, R. C. Merrill Jr., and J. R. VinogradCite this: J. Am. Chem. Soc. 1941, 63, 3, 670–676Publication Date (Print):March 1, 1941Publication History Published online1 May 2002Publish…
When wool fibres (or hairs) are rubbed together, the sign of the tribo-electric charges produced depends upon the sense of the rubbing. This effect is due to the cuticle cells of the fibre, which are piezo- and pyro-electric. Pyro-electricity is absent or weak in the cortical cells.
An important mechanism involved in the variation of the magnetization of ferromagnets near saturation is the rotation of the magnetization vector under the combined influence of the magnetic field and crystalline anisotropy torques. The effect of this mechanism in polycrystalline specimens has been calculated by Akulo…
Some relations between stress, strain, and time in high mole cular weight organic materials are discussed. In the light of these relations a better interpretation can be given to the conventional stress-strain test than is possible in terms of the mechanical proper ties of metals. The properties of primary creep, seco…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Densities, Surface Tensions and Parachors of Diborane, Boron Triethyl and Boron Tribromide. The Atomic Parachor of BoronA. W. Laubengayer, R. P. Ferguson, and A. E. NewkirkCite this: J. Am. Chem. Soc. 1941, 63, 2, 559–561Publication Date (Print):February 1, 1941Publicati…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDielectric Properties of Plasticized Polyvinyl ChlorideJ. M. Davies, R. F. Miller, and W. F. BusseCite this: J. Am. Chem. Soc. 1941, 63, 2, 361–369Publication Date (Print):February 1, 1941Publication History Published online1 May 2002Published inissue 1 February 1941https://…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrical Properties of Solids. VIII. Dipole Moments in Polyvinyl Chloride-Diphenyl Systems*Raymond M. Fuoss and John G. KirkwoodCite this: J. Am. Chem. Soc. 1941, 63, 2, 385–394Publication Date (Print):February 1, 1941Publication History Published online1 May 2002Published…
The theory of the preceding papers is generalized and the notation simplified. A cluster of molecules in a stable phase surrounded by an unstable phase is itself unstable until a critical size is reached, though for statistical reasons a distribution of such clusters may exist. Beyond the critical size, the cluster te…
Abstract The equilibrium diagram of the system silver-zinc has been investigated by thermal, microscopic, and X-ray methods. This has enabled the following points to be established: (1) The depression of the freezing-point of silver by zinc is slightly greater than that produced by equal atomic percentages of indium.…
Abstract 1. Graphite crystals have a large free-electron diamagnetism, which is directed almost wholly along the hexagonal axis. Over the whole range of temperature over which measurements have been made, namely, from 90 to 1270° K, this free-electron diamagnetism of graphite per carbon atom is found to be equal to th…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCellulose from HardwoodsGeorge A. RichterCite this: Ind. Eng. Chem. 1941, 33, 1, 75–83Publication Date (Print):January 1, 1941Publication History Published online1 May 2002Published inissue 1 January 1941https://pubs.acs.org/doi/10.1021/ie50373a016https://doi.org/10.1021/ie5…
A determination of the magnetic saturation induction of iron at r00111 temperature has been made, using a modification of the Ewing isthmus method. Specimens were taken from several ingots of iron of exceptional purity prepared at th e National Bureau of Standards. Corrections were made for the effect of the small amo…
Abstract The crystal structure of the γ‐modification of sulphur trioxide has been completely determined. The cell is orthohombic, with cell constants a = 12.3 Å, b = 10.7 Å and c = 5.3 Å and contains 12 units of SO 3 ; the X‐ray density is 2.29. The structure is a molecule lattice built up of molecules S 3 O 9 ; a [00…
H. P. Rooksby and A. H. McKeag, Trans. Faraday Soc., 1941, 37, 308 DOI: 10.1039/TF9413700308
Abstract By polarimetric observations with regard to the effects of H3BO3, Na2B4O7 and KBO2 on various polyoxy compounds the following results and conclusion were obtained. Boric acid has a very feeble ability for complex formation with non-ionizable polyoxy compounds, such as mannit and glucose, while alkali borates…
(1941). Minerals of the Varutrask Pegmatite. Geologiska Foreningen i Stockholm Forhandlingar: Vol. 63, No. 2, pp. 117-174.