Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTheoretical Investigation of Foam DrainageW. M. Jacobi, K. E. Woodcock, and C. S. GroveCite this: Ind. Eng. Chem. 1956, 48, 11, 2046–2051Publication Date (Print):November 1, 1956Publication History Published online1 May 2002Published inissue 1 November 1956https://pubs.acs.o…
ABSTRACT The potentiality of clay minerals as useful indicators of the environment of their formation is summarized from the published literature on the origin of clay minerals. Caution must be observed when drawing geologic inferences from a rock or mineral concerning its origin because the rock or mineral may not ha…
The melt and polarization spectra of dotriacontane and polyethylene in the 750–1500 cm—1 region and of nylon 6 and nylon 11 in the 450–4000 cm—1 region are presented. In addition, the melt and crystal spectra of stearone are presented in the 650–3500 cm—1 region. The effect of crystallinity on the spectrum of polyethy…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and Properties of Porphyrin Vanadium Complexes1J. Gordon Erdman, Virginia G. Ramsey, Norman W. Kalenda, and William E. HansonCite this: J. Am. Chem. Soc. 1956, 78, 22, 5844–5847Publication Date (Print):November 1, 1956Publication History Published online1 May 2002P…
An analysis of the velocity distribution of the molecules which escape through an ideal aperture from an isothermal enclosure has been made for ten alkali halides (CsCl, CsBr, RbCl, KCl, KI, NaF, NaCl, NaI, LiCl, and LiBr). It is found that there is a significant abundance of dimers in all cases except those of the ce…
A simple form of 60-cps hysteresis loop tracer for materials of high and low permeability is described. By including a differential form of balance control, all 60-cps voltage present in the leads and pickup coils, prior to the insertion of a magnetic specimen into the field coils, may be completely balanced out. The…
Abstract Solubilities of both gypsum and anhydrite in solution with sodium chloride, varied in concentration up to saturation, have been determined at 25° and for gypsum only at 35°. Sodium chloride lowers the temperature (42°) at which both forms of calcium sulphate have the same solubility and the salt concentration…
Specimens of U-9, -10.5, -12, and -13.5 w/o (weight percent) Mo and U-10 w/o Nb, heat treated to retain the metastable gamma phase at room temperature and also to transform this phase to the room temperature stable phases, were irradiated in the Materials Testing Reactor (MTR) at maximum temperatures of less than 200°…
The average change of intensity due to adding a heavy atom to a protein crystal is calculated for both the centrie and the acentric reflections. The amount by which small shifts of the molecules change the intensities is obtained for the monoclinic and orthorhombie systems, and formulae are given for the changes cause…
A barium titanate transducer coupled to an exponential horn can produce large strains in metals. By using a final horn with a necked down section, it is possible to concentrate the strains in a small specimen. Measurements of the impressed voltage and a voltage from a pick up electrode on the titanate make it possible…
A theory of the birefringence produced in a substance perpendicular to a strong magnetic field (the Cotton-Mouton effect) is presented. Allowance is made for electrical anisotropy induced directly by the magnetic field, an effect which can occur even for isotropic molecules. The effect of molecular interaction on meas…
The present work was undertaken with the purpose of considering why and how reaction takes place in an ultrasonic field, rather than studying the chemical kinetics of such reactions. Experimental evidence is presented which supports the conclusions that chemical processes brought about by ultrasonics require cavitatio…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMass Transfer in FoamsA. B. Metzner and L. F. BrownCite this: Ind. Eng. Chem. 1956, 48, 11, 2040–2045Publication Date (Print):November 1, 1956Publication History Published online1 May 2002Published inissue 1 November 1956https://pubs.acs.org/doi/10.1021/ie50563a036https://do…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHistory and Development of Foam as a Fire Extinguishing MediumA. F. RatzerCite this: Ind. Eng. Chem. 1956, 48, 11, 2013–2016Publication Date (Print):November 1, 1956Publication History Published online1 May 2002Published inissue 1 November 1956https://pubs.acs.org/doi/10.102…
If a textile yarn segment, clamped at each end, is impacted transversely at the mid point, the stress-strain curve for this yarn can be obtained from measurements on a high speed photographic record of the yarn's motion. This paper describes the apparatus and procedure used. Stress-strain curves for high rates of stra…
The influence of differences in the Al / Si -distribution of feldspars on the infrared absorption in the region of 7 to 16 μ is shown. Relations between the low- and high-temperature modifications of feldspars in view of their absorption spectrae are discussed. The value of infrared absorption measurements for the dis…
By using special acoustical and optical arrangements, vortex motions are discovered in the vicinity of small vibrating sources in liquids. Of particular importance is the vigorous eddying that typically takes place near a vibrating gas bubble when it rests on a boundary. This bubble-associated streaming has been obser…
The movement of liquid water in fiber assemblies such as yarns and fabrics is examined in terms of a theory of water transport based on a capillary penetration mechanism. Yarn construction features, such as twist, diameter, crimp, and fiber denier, are shown to be related to the rate of water transport in such fiber a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Kinetics of the Thermal Decomposition of Sodium Nitrate and of the Reaction between Sodium Nitrite and OxygenEli S. FreemanCite this: J. Phys. Chem. 1956, 60, 11, 1487–1493Publication Date (Print):November 1, 1956Publication History Published online1 May 2002Published in…
Silicon carbide was hot‐pressed to uniform densities of the order of 98% of the theoretical density, with slight additions of aluminum and iron aiding in this densification. Other elements having some effect were lithium, calcium, chromium, zirconium, and boron. This dense silicon carbide had very high strength at hig…