Materials Literature
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The kinetics of hydrogen attack of a killed steel have been studied in the temperature range 800 to 1200 F and in the pressure range 450 to 950 psi hydrogen. A quantitative relationship between incubation of attack and temperature and pressure has been obtained. Based on these results and those from a series of iron a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of Dissolved RadiumA. S. GoldinCite this: Anal. Chem. 1961, 33, 3, 406–409Publication Date (Print):March 1, 1961Publication History Published online1 May 2002Published inissue 1 March 1961https://pubs.acs.org/doi/10.1021/ac60171a030https://doi.org/10.1021/ac601…
Human disease due to Flavobacteria has been described by Vandepitte and co-workers (4 patients)<sup>1</sup>and by Brody, Moore, and King (19 patients, 2 epidemics),<sup>2</sup>who reported some of the clinical features in neonates of epidemic meningitis caused by these organisms. The preceding article in this issue by…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHIGH TEMPERATURE THERMODYNAMICS OF THE IRON OXIDE SYSTEMOliver N. SalmonCite this: J. Phys. Chem. 1961, 65, 3, 550–556Publication Date (Print):March 1, 1961Publication History Published online1 May 2002Published inissue 1 March 1961https://pubs.acs.org/doi/10.1021/j100821a03…
A number of single-crystal films of iron, nickel, and Permalloy were made epitaxially by evaporation onto(001) cleavage surfaces of NcCl and MgO. Magnetic anisotropies for the rotation of magnetization within the plane as well as out of the plane of the film were measured. Values of the observed fourth-order anisotrop…
A calculation of the field due to the ring current in the porphyrin system is given and shown to account for the observed chemical shifts of the protons in porphyrins. Also variations of the ring current are shown to account for the observed variations in the proton chemical shifts of different porphyrin molecules.
The temperature of a thin metal foil illuminated by the high intensity electron beam of the modern microscope may at the centre of illumination reach a temperature above that of the melting point of iron. An attempt has been made to measure and calculate the temperature distribution for any given metal under various i…
Abstract Es wird ein kurzer Überblick über den derzeitigen Stand der Braunsteinforschung gegeben. Die Untersuchungsmethoden werden mitgeteilt. δ‐Braunsteine werden nach mehreren Verfahren hergestellt und charakterisiert. Beim Erhitzen an der Luft wandeln sich die δ‐Braunsteine bei etwa 100 °C in γ″‐MnO 2 um. Bei weite…
The ordering transformation in the alloy Ni3Mn has been investigated using both magnetic and neutron diffraction techniques. These measurements were made with alloys that were allowed to relax to nearly equilibrium states of order over a range of temperatures above and below the critical ordering temperature. In addit…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStress-Temperature Coefficients of Polymer Networks and the Conformational Energy of Polymer Chains1A. Ciferri, C. A. J. Hoeve, and P. J. FloryCite this: J. Am. Chem. Soc. 1961, 83, 5, 1015–1022Publication Date (Print):March 1, 1961Publication History Published online1 May 2…
An analytic function is proposed in a parametric form which displays the character of an adjustable hysteresis loop. The type of function used was suggested by the phase-frequency characteristic of a conventional phase shift network. There are two parameters in the analytic function, one of which controls the width of…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of Carbon, Oxygen, and Silicon in Solids by Activation Analysis with 15.M.e.v. DeuteronsJ. W. Winchester and M. L. PottinoCite this: Anal. Chem. 1961, 33, 3, 472–473Publication Date (Print):March 1, 1961Publication History Published online1 May 2002Published in…
Magnetic and crystallographic properties have been studied of the system (La 1- y Sr y )MnO x with varying values of y and x . It is found that the compounds with y =1 crystallize in the perovskite-like structures provides that x is lower than a certain limit. Perovskite-like SrMnO x , containing both Mn 3+ and Mn 4+…
Hiroyuki Tadokoro, Yoshiyuki Nishiyama, Shun’ichi Nozakura, Shunsuke Murahashi; Stereoregular Polymers. VII. Infrared Spectra of Isotactic Polystyrene, Iso
New measurements of the decay of the luminescence produced in LiI(Eu), NaI(Tl), KI(Tl), CsBr(Tl) and three CsI crystals of varying thallium concentration have been made for particles with different ionization densities. The decay time of the luminescence is found to depend on the average ionization density ρ. In all c…
The rate of reaction (a) has been studied over the temperature range 1140–1460 °C, by following the loss in weight of the reactants in high vacuum.[Formula: see text]The loss in weight of the reactants was found to be greater than that which can be accounted for by the above reaction. The excess weight loss was found…
Hydrogen absorption during the corrosion of zirconium alloys has been studied in 600 and 680 F water and 750 F 1500-psi steam. Results on binary sponge-base alloy series indicate that, of the alloying elements found in Zircaloy-2, nickel at increasing levels markedly increases hydrogen absorption. Tin has little or no…
Abstract A number of polymethylene sulfide and polymethylene oxide polymers have been synthesized in order to study the influence of sulfur and oxygen atoms on melting temperature and rate of crystallization. Substituting oxygen for sulfur lowers the melting temperature but does not markedly change the rate of crystal…
Measurements were made of the magnetostriction and anisotropy in oriented polycrystals of MnBi at various temperatures between 77–300°K. The magnetostriction constants in a four-constant expression have been evaluated as a function of temperature, and the first three anisotropy constants also have been estimated. At l…
Studies of the temperature dependence of Bragg reflections and critical scatterings of X-rays have been carried out for the ferroelectric NaNO 2 in a manner analogous to those made by Shibuya and Mitsui for (glycine) 3 ·H 2 SO 4 . Experimental observations agree with theoretical predictions which are based on an assum…