Materials Literature
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Abstract Äthylendiamin‐ und ortho‐Phenylendiaminderivate von Oxymethylen‐β‐dicarbonylverbindungen bilden mit Nickel(II) und Kupfer(II) planare 1:1‐Chelate mit cis‐[N 2 O 2 ]‐Koordination, die am Chelatring in Mesostellung eine freie Carbonylgruppe COR (R CH 3 , C 6 H 5 , OC 2 H 5 ) tragen. Die Esterderivate mit R…
Abstract The thermal properties of a series of polyhydrazides and corresponding poly‐1,3,4‐oxadiazoles have been investigated using differential thermometric and thermogravimetric techniques. In addition, the conversion rates of the polyhydrazides to the corresponding oxadiazole structures have also been measured. In…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTransition Metal Dithiolate Complexes. I. π-Cyclopentadienyl Maleonitrile Dithiolate CompoundsJ. Locke and J. A. McClevertyCite this: Inorg. Chem. 1966, 5, 7, 1157–1161Publication Date (Print):July 1, 1966Publication History Published online1 May 2002Published inissue 1 July…
The elastic constants of synthetic single crystal corundum (aluminum oxide) were calculated from 0 to 900 °K from data obtained by a resonance technique from 80 to 900 °K.
Single crystal films of γ-Fe 2 O 3 were epitaxially grown on a (100) surface of MgO by the halide-decomposition method. Chemical analysis, electrical conductivity and, optical absorption measurements showed that the crystals contain no ferrous ions. X-ray diffraction assigned a cubic spinel structure and ruled out the…
Reactions between silica and graphite were studied in vacuum from 1445° to 1765°C by continuously measuring the amount of carbon monoxide formed. At low temperatures and/or short times, the reaction followed a linear rate law with an apparent activation energy of 117 kcal. At higher temperatures and/or longer times, t…
Materials with corrosion rates of 0.1 mpy or less are required in many applications. In this investigation, application of linear polarization to measurement of low corrosion rates is examined. Also, two new electrochemical techniques are derived theoretically and verified experimentally. These methods can measure acc…
The effect of pressure to several hundred kilobars has been measured on Cr2O3 and α-Fe2O3. Both have the corundum structure. Results are compared with previously published data for Al2O3. Cr2O3 exhibits a compressibility which decreases markedly with increasing pressure; Al2O3 has a compressibility nearly independent…
Journal Article Matrix Algebra for the Biological Sciences Get access Matrix Algebra for the Biological Sciences. By Searle S. R.. John Wiley & Sons, Inc., New York, 1966. 296 pp., $9.95. Frederick E. Smith Frederick E. Smith Search for other works by this author on: Oxford Academic Google Scholar BioScience, Volume 1…
Electron transmission microscopy and diffraction reveal that the precipitation of {100} disc-shaped G.P. zones in a copper-2% beryllium alloy is accompanied by the appearance of striations parallel to the traces of {110} planes in the microstructure and < 110 > relrods normal to these planes in diffraction patterns. U…
Abstract Aromatic dinitriles cyclize to form aromatic polymers containing the s ‐triazine ring. In this paper, these polymers are compared thermally with each other and with aromatic melamine polymers prepared via the aromatic diamine and cyanuric chloride. One perfluoroaromatic melamine polymer was prepared and compa…
Hall-effect and electrical conductivity measurements were performed on Cu 2 O single crystals both before and after heating the samples in vacuo at temperatures ranging from 200 °C to 800 °C. Both the absolute values of the mobility and the conductivity, as well as their temperature dependence, were found to be strong…
Basic theoretical ideas on the properties of two special dislocation configurations, dislocation dipoles and prismatic dislocation loops, are presented. Some of the author's recent results, based mostly on the application of the model of elastic continuum on these crystalline defects, are also given. The influence of…
Abstract In previous work it was found that Cl repulsion by arid‐zone soi's from a solution having a high and uniform concentration of Cl is closely related to surface area as measured by ethylene glycol retention. Based on this information, a measurement of Cl repulsion has been incorporated into the NaOAc method for…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Synthesis of Aluminoles via the Addition and Cyclization Reactions of Arylaluminum Compounds1John J. Eisch and William C. KaskaCite this: J. Am. Chem. Soc. 1966, 88, 13, 2976–2983Publication Date (Print):July 1, 1966Publication History Published online1 May 2002Published…
Abstract The clay mineral composition is one of the factors that affect the physical properties of soils, and a knowledge of it is required to promote a fuller understanding of the origin of these properties. The relationships between the clay content and the plastic and liquid limits of natural montmorillonitic and k…
Abstract The water vapour transmission properties of selected hydrophilic, lipophilic, and mixed hydrophilic-lipophilic polymer systems, cast as free films, have been examined as a function of time, film thickness, plasticiser concentration, and film formulation. An inverse linear relationship was established between…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT2-Amino-5-Substituted 1,3,4-Oxadiazoles and 5-Imino-2-Substituted Δ2-1,3,4-Oxadiazolines. A Group of Novel Muscle RelaxantsHarry L. Yale and Kathryn LoseeCite this: J. Med. Chem. 1966, 9, 4, 478–483Publication Date (Print):July 1, 1966Publication History Published online1 Ma…
Persistent slip bands in fatigued OFHC copper single crystals have been examined using both replica and transmission electron microscopy techniques. In general, the dislocation structure below persistent slip bands is found to consist of rows of elongated cells within a region extending at least 170 microns below the…
Adiabatic bulk modulus, B s , of polycrystalline MgO and Al 2 O 3 was measured from 298° to 1473°K using the resonance technique. The Grüneisen constant, calculated from the measured bulk modulus, was constant over the whole temperature range (1.53 for MgO and 1.34 for Al 2 O 3 ). Another important parameter, , is con…