Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and X-Ray Diffraction Data1 for Some Rare Earth StannatesCharles G. Whinfrey, Donald W. Eckart, and Arthur TauberCite this: J. Am. Chem. Soc. 1960, 82, 11, 2695–2697Publication Date (Print):June 1, 1960Publication History Published online1 May 2002Published iniss…
The magnetic anisotropy of cobalt ferrite is considered to arise from the cobaltous ions in the crystalline field of a low symmetry. The crystalline field due to the averaged-out charge distribution of Co2+ and Fe3+ ions in the octahedral sites gives the lowest-lying twofold degenerate orbital level of the Co2+ ion an…
A review is given of the techniques that have been used in the construction of dynamic tension-testing machines. The problems involved in obtaining reliable tensile stress-strain curves at high strain rates are discussed. A new apparatus, designed to give accurate stress-strain curves in tension at strain rates of the…
Research Article| June 01 1960 The formation of fibrils from collagen solutions 1. The effect of experimental conditions: kinetic and electron-microscope studies* G. C. Wood; G. C. Wood † 1Department of Medicine, University of Leeds Search for other works by this author on: This Site PubMed Google Scholar M. K. Keech…
X-ray-powder photographic studies of the plutoniumboron system revealed four plutonium borides, PuB, PuB/sub 2/, PuB/sub 4/, and PuB/sub 6/, and several other unidentified phases. The samples were prepared by heating powdered mixtures at 800 deg C in the range 60to 65 at.% boron and at 1200 deg C in the range 40 to 95…
Abstract The spontaneous magnetization at the absolute zero and Curie point of the face-centred cubic phase in the binary alloys of Pd, Rh, Ru, Pt, Ir and Os in cobalt and of Rh, Ir and Os in nickel have been measured as a function of composition, and older measurements on Pd, Ru and Pt in nickel have been re-assessed…
Abstract This paper describes a kinematical theory of electron microscope images of dislocations observed by transmission in thin crystalline foils. The contrast is essentially phase contrast in the Bragg diffracted beams, the phase differences being due to the displacements of the atoms from their positions in the id…
A procedure based on the Boltzmann equation is given for evaluating the harmonic currents in an electron beam in the presence of a velocity distribution. Employing the above method, the second harmonic current in a drifting (initially volocity modulated) beam possessing a velocity distribution is evaluated.
In the presence of magnetocrystalline anisotropy the magnetization of a ferromagnet depends upon its orientation as well as upon the temperature. The temperature dependences of the anisotropic parts of the magnetization have been worked out, both classically and quantum-mechanically, for all symmetries and for ferro-…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDifferential Thermal Analysis and Thermogravimetry of Some Salts of Guanidine and Related CompoundsM. I. FauthCite this: Anal. Chem. 1960, 32, 6, 655–657Publication Date (Print):May 1, 1960Publication History Published online1 May 2002Published inissue 1 May 1960https://doi.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLiquid Scintillators. XI. 2-(2-Fluorenyl)-5-aryl-substituted Oxazoles and 2-(2-Fluorenyl)-5-phenyl-1,3,4-oxadiazole1Martin D. Barnett, Guido H. Daub, F. Newton Hayes, and Donald G. OttCite this: J. Am. Chem. Soc. 1960, 82, 9, 2282–2285Publication Date (Print):May 1, 1960Publ…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA CARBON-SKELETON REARRANGEMENT DURING THE OXIDATIVE DEPHOSPHORYLATION OF A NEW TYPE OF PHOSPHORUS COMPOUND. REACTION OF MOLECULAR OXYGEN WITH THE CRYSTALLINE 1:1 ADDUCTS DERIVED FROM TERTIARY PHOSPHITE ESTERS AND alpha-DIKETONES1Fausto Ramirez, R. B. Mitra, and N. B. DesaiC…
Abstract Multiple bands or strata of soil materials, which are finer textured and browner or redder colored than the material above or below, have been studied. These bands are common in unconsolidated sandy Coastal Plain and glacial deposits. In Virginia, North Carolina, and South Carolina they are found to lie nearl…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFlame-Resistant Polymers. Polyphos-phates and Polyphosphonates from Di-hydroxy CompoundsH. W. Coover, R. L. McConnell, and M. A. McCallCite this: Ind. Eng. Chem. 1960, 52, 5, 409–411Publication Date (Print):May 1, 1960Publication History Published online1 May 2002Published i…
Configurations of individual dislocations in zinc have been studied by electron transmission microscopy and by x-ray diffraction microscopy. Loops of sessile dislocation have been observed surrounding stacking faults lying on (0001) planes. These loops were evidently formed by condensation of point defects. Changes in…
The possibility is examined that Brown's paradox results from the assumption that the shape of the crystal considered is ellipsoidal. It is argued that the large local demagnetizing fields developed near sharp corners of a uniformly magnetized crystal cause the appearance of closure domains, which serve as nuclei of r…
Stress‐strain curves were obtained in flexure and in tension on single crystals of MgO. A decrease in iron content and high‐temperature heating and rapid cooling caused a decrease in strength and increase in ductility. Heat‐treatment of previously deformed specimens increased their strength. The slip band structures r…
The net energy of blackstrap molasses for fattening has been determined by use of the comparative slaughter technique. The feeding of molasses at 10% in the ration significantly increased fat deposition while not significantly increasing total gain over the basal ration. Molasses at 25 and 40% levels resulted in lower…
Glass formation has been found to be extensive in the systems As‐TI‐S, As‐Tl‐Se, and As‐Se‐S. Glasses in these systems exhibit unique low‐melting properties; some are highly fluid as low as 185OC. The marked effect of thallium in lowering the viscosity of binary As‐S melts was found to be unique among all the metallic…
Studies made on low‐hafnium‐content ZrO 2 , show that the monoclinic‐tetragonal inversion temperature is 1170°C., and it is raised to approximately 1190°C. in the “natural” ZrO 2 , which contains approximately 2% HfO 2 . No explanation could be found for the knownmarked hysteresis during cooling, when the reverse poly…