Applied Clay Mineralogy
"Applied Clay Mineralogy." Geologiska Föreningen i Stockholm Förhandlingar, 84(4), p. 533
Materials Literature
文献浏览
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。
Estimating isothermal life from thermogravimetric data
Abstract Equations are given for estimating equivalent isothermal life from thermogravimetric data and for estimating the apparent activation energy for volatilization even though the nature of the kinetic process is unknown. Illustrative data for polytetrafluoroethylene are presented. The importance of using sample t…
Structure of Cu2B10H10
An x-ray diffraction study of the crystal structure of Cu2B10H10 shows that the earlier proposal that the B10H10—2 ion has D4d symmetry is correct, and further establishes the covalent nature of the interactions of CuI with B atoms forming the edges of the polyhedron. There are eight Cu2B10H10 in a unit cell having di…
Rate of Spherulitic Crystallization with Chain Folds in Polychlorotrifluoroethylene
(I) The requirements for making a critical test of whether two- or three-dimensional surface nucleation controls the radial growth of lamellar spherulites in bulk are discussed. Radial-growth-rate data were obtained on spherulites of polychlorotrifluroethylene (PCTFE) for a wide range of supercooling ΔT, and found to…
Effects of Fluxing Ingredients on the Properties of Magnesium-Calcium-Alumino Silicate Glasses
The effects of different fluxing ingredients on melting characteristics, thermal expansion, DC resistivity and dielectric properties of the glass compositions, MgO 10, CaO 10, Al2O3 19, SiO2 61% and MgO 18, Al2O3 19, SiO2, 63% were studied. Li2O is the strongest fluxing ingredient but it increased expansivity and diel…
Extraordinary Hall Effect in Paramagnetic Gold Alloys
The Hall coefficient of alloys of up to 5% Ni, Co, Fe, and Mn in Au has been measured from 4.2°K to room temperature. The Hall coefficients are strongly temperature dependent in these alloys and have been fitted to an equation of the form R=R0+R1χ, where R0 is close to the value for the Hall coefficient of pure Au, an…
Checkerboard Domain Pattern of Single-Crystal Thin Iron Film
Basic domain structures of epitaxially grown single-crystal thin films of iron are investigated by the powder pattern technique. For films with (001) orientation, where two easy axes of magnetization lie within the plane of the film, a checkerboard pattern, i.e., a regular square domain pattern made up of 90° walls on…
Über die Druckabhängigkeit der CaCO3‐Bildung aus dem Oxyd
Abstract Es wurde die Kinetik der CaCO 3 ‐Bildung aus dem Oxyd unter verschiedenen CO 2 ‐Drucken untersucht und gefunden, daß die Geschwindigkeit der CO 2 ‐Aufnahme bei Temperaturen über 800 °C durch die druck‐abhängige Keimbildung und den ebenfalls druckabhängigen Wachstumsprozeß bestimmt wird. Bei 800 °C und Drucken…
Friedel-Crafts Isomerization. III. Aluminum Bromide-Catalyzed Isomerization of Bromofluorobenzenes, Bromochlorobenzenes, and Dibromobenzenes
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFriedel-Crafts Isomerization. III. Aluminum Bromide-Catalyzed Isomerization of Bromofluorobenzenes, Bromochlorobenzenes, and DibromobenzenesGeorge A. Olah, William S. Tolgyesi, and Robert E. A. DearCite this: J. Org. Chem. 1962, 27, 10, 3455–3464Publication Date (Print):Octo…
Variation with Age in Elasticity of Skin and Subcutaneous Tissue in Human Individuals
J. E. Kirk, M.D., M. Chieffi, M.D.; Variation with Age in Elasticity of Skin and Subcutaneous Tissue in Human Individuals, Journal of Gerontology, Volume 1
The Structure of Solids
Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More
Elongated dislocation loops and the stress-strain properties of copper single crystals
The formation of elongated dislocation loops in deformed copper single crystals has been studied by transmission electron microscopy. A mechanism by which elongated loops could be formed is considered in detail. The density of these loops was found to increase only slightly during stage I of the stress-strain curve, b…
Theory of Non-linear Optical Processes in Semiconductors and Insulators
The theories of three non-linear optical processes are given: (i) the creation of excitons by simultaneous absorption of two photons of different frequency; the particular case of Cu 2 O is treated in detail; (ii) the generation of second-harmonic radiation from a monochromatic primary beam in a crystal without a cent…
THE ADSORPTION OF FLEXIBLE MACROMOLECULES. PART II. THE SHAPE OF THE ADSORBED MOLECULE; THE ADSORPTION ISOTHERM SURFACE TENSION, AND PRESSURE1
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE ADSORPTION OF FLEXIBLE MACROMOLECULES. PART II. THE SHAPE OF THE ADSORBED MOLECULE; THE ADSORPTION ISOTHERM SURFACE TENSION, AND PRESSURE1A. SilberbergCite this: J. Phys. Chem. 1962, 66, 10, 1884–1907Publication Date (Print):October 1, 1962Publication History Published o…
A Study of the Magnetic Properties of the FeTiO3-αFe2O3 System by Neutron Diffraction and the Mössbauer Effect
The solid solutions (1- x )FeTiO 3 - x Fe 2 O 3 exhibit strong ferromagnetic moments in the composition range 0.1< x <0.6. In this region cation ordering is thought to occur such that the Fe 2+ and Ti 4+ ions occupy alternate (111) layers, thus forming sublattices A[ x Fe 3+ , (1- x )Fe 2+ ] and B[ x Fe 3+ , (1- x )Ti…
Statistical Aspects of Ferromagnetic Nucleation-Field Theory
It has been shown by DeBlois that surface flaws decrease the magnitude of the nucleation field of iron whiskers below the ideal theoretical value Hn0=2K1/Ms. It is assumed here that the number of flaws in area S is determined by a Poisson distribution, with mean number λS (λ=const); that each flaw independently has a…
Dielectric Anomaly in ZnS Films
The dielectric constant of vacuum-deposited ZnS films was measured as a function of thickness in the range of 350 Å to 4 μ. For room temperature deposition, a sharp anomaly was found in the dielectric constant vs thickness curve. The highest measured constant was 34.7 at a thickness of 900 Å. As the thickness increase…
Studies on the Silk-Rhodium Catalyst
Abstract 1) The most active catalyst was obtained when 400 mg. of silk-fibroin was boiled with 30 ml. of 0.5% aqueous solution of rhodium chloride for ca. 30 min., and the resulting chelate was then reduced. 2) The activity of this catalyst was not influenced significantly by the conditions for its preparation and was…
The Application of Simple Equations for Calculating Bond Dissociation Energies to Thermal Degradation of Fluorocarbons
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Application of Simple Equations for Calculating Bond Dissociation Energies to Thermal Degradation of FluorocarbonsL. A. ErredeCite this: J. Org. Chem. 1962, 27, 10, 3425–3430Publication Date (Print):October 1, 1962Publication History Published online1 May 2002Published i…
Anomalous Magnetic Films
A study of three types of anomalous nickel-iron magnetic films has been made: high coercive-force films, which have unusually large hysteresigraph values of wall and rotational coercive forces; rotatable initial-susceptibility films, for which the value of the initial susceptibility as found from low-field hysteresigr…