Materials Literature
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Microwave susceptibility expressions for ferromagnetic resonance have been derived for metal single crystals possessing crystalline anisotropy. Crystals of uniaxial and cubic magnetic symmetry are considered. When the magnetization M is aligned with the applied field H, the results are equivalent to those of Kittel. W…
Abstract not Available.
X-ray powder data are given for fifteen phases occurring in the titanium --oxygen system. (auth)
Dense oxide films have been formed anodically on p ‐ and n ‐type single‐crystal Si in connection with the electrical properties of Si surfaces. Concentrated or permit forming, but the highest voltage obtainable is less than 200 v. A solution of in N ‐methylacetamide permits forming to 560 v, and is also preferable in…
A. Sharples, Trans. Faraday Soc., 1957, 53, 1003 DOI: 10.1039/TF9575301003
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBiological Degradation of Cellulose DerivativesElwyn T. ReeseCite this: Ind. Eng. Chem. 1957, 49, 1, 89–93Publication Date (Print):January 1, 1957Publication History Published online1 May 2002Published inissue 1 January 1957https://pubs.acs.org/doi/10.1021/ie50565a033https:/…
(1957). The experimental study of the optical properties of metals and the relation of the results to the Drude free electron theory. Advances in Physics: Vol. 6, No. 21, pp. 102-144.
Presents a revised structural classification of minerals of the cordierite group on the basis of optical and x-ray studies of natural and artificial material which have shown the existence of a number of structurally intermediate states between indialite (hexagonal) and common cordierite (pseudohexagonal).
A series of solid solution xTiFe2O4.·(1-x) Fe3O4 was synthesized by ceramic method over a whole range of the composition, 1≥x≥0. Changes of the Curie point, saturation moment and the lattice parameter with the composition were examined. Generalized titanomagnetite having some vacant site in the structure normally occu…
The use of electromotive force measurements on galvanic cells for the determination of standard molar free energies of formation of halides, oxides, sulfides, and other compounds at elevated temperatures is surveyed. New potentialities and inherent limitations are shown. Formulas for the estimate of errors resulting f…
Abstract Gerichtete Elektronenstrahlen mit einer Primärenergie von 10, 30, 50 und 70 keV werden an Al, Cu, Ag und Au gestreut und dabei die Energie‐ und Winkelverteilung der Streuelektronen gemessen. Aus den Meßergebnissen lassen sich für einen Elektronenstrahler, der die Elektronen richtungsisotrop emittiert, die Ene…
J. S. Griffith and L. E. Orgel, Trans. Faraday Soc., 1957, 53, 601 DOI: 10.1039/TF9575300601
The period of out-of-step of ordered alloys with anti-phase domain structure, measured in atomic distance, is generally not an integer, in spite of sharp splits of superlattice reflections. This fractional property of the period has theoretically been examined. The general treatment of this problem has shown that a re…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTApplication of Self-Consistent Molecular Orbital Methods to π-ElectronsJ. A. PopleCite this: J. Phys. Chem. 1957, 61, 1, 6–10Publication Date (Print):January 1, 1957Publication History Published online1 May 2002Published inissue 1 January 1957https://pubs.acs.org/doi/10.1021…
Samarium oxide forms a ceramic of medium strength and density (6.0) when it is fired at 1300°C. When it is fired at 1500°C., its density is increased to 7.4 but it loses its stability toward boiling water. X‐ray data are given concerning the structure of the oxide as received and at 1300°C. and of the reaction product…
Consideration of corrosion in the presence of water has led to the postulation of damage by hydrogen produced in the reaction. For cases where the metal surface is covered with a protective layer, it is considered that some hydrogen ions diffuse through the layer and form hydrogen atoms beneath it. The consequence of…
Experiments are reported in which novel results are found on the magneto-resistance of sodium and rubidium. Measurements have been made both on plate-like specimens which show very strong anisotropy in the magnetic field, and on a cylinder of diameter large comparedwitli the mean free path, ι, of the electrons. The an…
The electrodeposition of Mg from ether solutions of such Mg compounds as ( a ) halides, ( b ) aluminohydrides, ( c ) borohydrides, and ( d ) Grignard reagents was investigated. White, metallic deposits containing 90% Mg and 10% B were obtained from an ether solution of and . However, thick deposits could not be built…
Summary A heat-labile, nondialyzable factor with nerve growth-promoting properties has been partially purified from Sarcoma 180. The data indicate that the active material is a protein or is bound to a protein and that nucleic acids are not involved in its effectiveness. The factor must be continuously present in the…
Abstract not Available.