Materials Literature
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C . W. Bunn and H. Emmett have observed the spreading, of multi-molecular layers on growing crystals of artificial compounds, and have suggested that deposition takes place on the high-index surfaces at the edges of the layers. Their work led the author to examine crystals of several mineral species for evidence of th…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIdentification of Polymorphic Forms of Crystals by Infrared SpectroscopyD. N. KendallCite this: Anal. Chem. 1953, 25, 3, 382–389Publication Date (Print):March 1, 1953Publication History Published online1 May 2002Published inissue 1 March 1953https://pubs.acs.org/doi/10.1021/…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface Tension at Elevated Temperatures. I. Furnace and Method for Use of the Sessile Drop Method; Surface Tension of Silicon, Iron and NickelW. D. Kingery and M. Humenik Jr.Cite this: J. Phys. Chem. 1953, 57, 3, 359–363Publication Date (Print):March 1, 1953Publication Hist…
Using the mass spectrometer as an analytical tool and as a means of rate measurement, the rates of helium diffusion through nine types of glass were measured. The temperature range covered was from –80° to 600°C. The highest rates were for fused silica and Vycor brand glass; the lowest were for the lead glasses. The r…
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A simplified procedure is given for determining the 5 magnetostriction constants of a single crystal of a ferromagnetic cubic crystal. The crystal is cut as a disk parallel to a (110) plane, and strain gauges are cemented to the surfaces to measure strains in [001] and [$1\overline{1}1$] directions. A magnetic field s…
The thermal conductivity, electrical resistivity, and thermoelectric power have been measured in the temperature range from 20\ifmmode^\circ\else\textdegree\fi{}K to 300\ifmmode^\circ\else\textdegree\fi{}K for samples of artificial extruded graphite, natural molded graphite, and lampblack graphite. Experimental result…
Abstract A discussion is given of the advantages of the thermodynamic approach in the study of clay-ion-water systems. Generally valid equations for the description of the systems are given, and the relative significance of the osmotic terms is roughly assessed. The principal theoretical and experimental problem is th…
Abstract The clay minerals in a soil developed from Lenoir limestone (Ordovician) in Augusta County, Va., are kaolinite and chlorite. The Lenoir limestone contains clay partings consisting of hydrous mica, and the clay in the soil is considered to be residual from that in the parent limestone and modified by soil-form…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhase Study of the PbO—PbBr2 System by X-Ray DiffractionFrances W. Lamb and Leonard M. NiebylskiCite this: J. Am. Chem. Soc. 1953, 75, 3, 511–518Publication Date (Print):February 1, 1953Publication History Published online1 May 2002Published inissue 1 February 1953https://pu…
Abstract A series of clay minerals with a 7A series of reflections has been shown to exist in the MgO-Al 2 O 3 -SiO 2 -H 2 O system. It has been demonstrated both on synthetic and natural samples that these minerals are polymorphous with the 14A-series chlorite minerals. Widespread occurrence of these minerals in natu…
Cavitation dans d'un la zone jet de mlange l'AR FIUN'l'RR ItOlTSE IOWA l''STlT(;TE OF IlYIllUCI.IC I\f.:SEAIICIl \lIlereas i11cipient cavitatiO/l at a stre((Jlltined /Jollndary W11 be predicted by potential tIwory, that OcclllTing at a .sll rlilce 0/ discontinllily depends lIpon correlalion 0/ the tllrblltent uerocity…
Experiments have been made with the marine diatom Nitzschia closterium grown in artificial light with different nitrogen sources. After the nitrogen source in the medium was exhausted, photosynthesis and cell division continued, the cells becoming nitrogen- and chlorophylldeficient. On adding a nitrogen source to defi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTernary Solubility Data for Systems Involving 1-Propanol and WaterJ. F. McCants, J. H. Jones, and W. H. HopsonCite this: Ind. Eng. Chem. 1953, 45, 2, 454–456Publication Date (Print):February 1, 1953Publication History Published online1 May 2002Published inissue 1 February 19…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Synthesis and Polymerization of Some Fluorinated Styrenes1Maurice ProberCite this: J. Am. Chem. Soc. 1953, 75, 4, 968–973Publication Date (Print):February 1, 1953Publication History Published online1 May 2002Published inissue 1 February 1953https://doi.org/10.1021/ja0110…
The study of the dielectric, piezoelectric and elastic properties of KH2PO4 has been extended into the ferroelectric range of temperatures, and should permit further theoretical consideration of the behaviour of this group of crystals. In addition to the main transition, the treatment of which is still inadequate, the…