Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Promotion of a Nickel Catalyst by Electronic Interaction with Germanium SupportsRaymond F. Baddour and Max C. DeibertCite this: J. Phys. Chem. 1966, 70, 7, 2173–2181Publication Date (Print):July 1, 1966Publication History Published online1 May 2002Published inissue 1 Jul…
Abstract The fatigue life of natural rubber-HAF black vulcanizates showed maxima when plotted as a function of crosslink concentration as did other properties related to a tearing process such as tensile strength, crack growth, and tear strength. Accelerated-sulfur vulcanizates were superior to peroxide and nonelement…
Many electron micrographs showing various lattice images were obtained from single crystal gold films. Many of them showed more than two sets of lattice images side by side or/and crossing to each other, e.g. (200), (020) and (220) crossing to each other. To obtain such images the crystal must be oriented so that Brag…
An analysis of the thermal conductivity of polymethyl methacrylate is presented which fits the experimental data to better than 10% from 1°K to the glass temperature. The model employed is a slight modification of Klemens' theory of the thermal conductivity of amorphous substances in which explicit account of the fibr…
SUMMARY Heating of cellulose (purified cotton and cuprammonium‐regenerated cellulose) under nitrogen in the presence of liquid water at 100° and at 150°C brought about a small amount of hydrolysis and some dehydration, the extent of which was directly proportional to the temperature. Heating in the absence of water ca…
Abstract Some earlier observations on the influence of molecular weight, plasticizer, and irradiation on the thermal conductivity of polymers is reviewed. Also some new data on polystyrene and some new calculations based on the theory of Hansen and Ho are presented. These data show almost a two fold increase in the th…
The structure of evaporated boron films was studied by electron diffraction, using the sector-microphotometer procedure. Eleven halos were observed in the region of s <23Å -1 . Both the radial distribution and the intensity comparison methods were applied to analysis of the data. Bond distances similar to those app…
Abstract Stress softening of vulcanizates of SBR 1500 containing different blacks possessing the same “structure” but varying in surface activity, and effects of different black loadings, of black structure levels, and of particle size, were investigated. It was concluded: 1. Strain-energy loss can be used as a quanti…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDensities of Binary and Ternary Aqueous Solutions of NaCl, Na2SO4 and MgSO4 of Sea Waters, and Sea Water Concentrates.B. M. Fabuss, A. Korosi, and A. K. M. Shamsul HugCite this: J. Chem. Eng. Data 1966, 11, 3, 325–331Publication Date (Print):July 1, 1966Publication History P…
Abstract Thermal oxidation in linear polyethylene is mainly confined to disordered regions in which scission reactions cause crystallization and eventual deterioration of mechanical properties. Gel formation is negligible at 100°C. As degradation proceeds, comparable changes occur in the intrinsic viscosities of melt…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComplexes of Cobalt(II). I. On the Anomalous Magnetic Behavior of Some Six-Coordinate Cobalt(II) ComplexesR. Carl Stoufer, Darwin W. Smith, Emilie A. Clevenger, and Thomas E. NorrisCite this: Inorg. Chem. 1966, 5, 7, 1167–1171Publication Date (Print):July 1, 1966Publication…
SUMMARY Glauconite pellets exhibit considerable variety in morphology and internal structure. Recognized morphological types are: (1) ovoidal or spheroidal; (2) tabular or discoidal; (3) mammillated; (4) ellipsoidal; (5) vermicular; (6) composite; and (7) fossil casts, internal molds, or replacements. Types of interna…
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…