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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotochromic Anils. Mechanisms and Products of Photoreactions and Thermal ReactionsRalph S. Becker and W. Frank. RicheyCite this: J. Am. Chem. Soc. 1967, 89, 6, 1298–1302Publication Date (Print):March 1, 1967Publication History Published online1 May 2002Published inissue 1 M…
Abstract As is now well known, the use of an organic peroxide as a crosslinking agent for an elastomer was first reported by Ostromislensky in 1915. In this work benzoyl peroxide was used to cure natural rubber; similar acyl peroxides together with more recently discovered, less active, and more convenient dialkyl per…
Phase equilibrium relations in the system PbO–TiO 2 –ZrO 2 were studied by quenching in the range where the PbO content is 50 mole % and more. Isotherms were examined at 1100°, 1200°, and 1300°C and tie lines were determined between the liquid and solid solution in equilibrium. The incongruent melting point of PbZrO 3…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHomogeneous Catalysis. IV. Some Reactions of Silicon Hydrides in the Presence of Cobalt CarbonylsA. J. Chalk and J. F. HarrodCite this: J. Am. Chem. Soc. 1967, 89, 7, 1640–1647Publication Date (Print):March 1, 1967Publication History Published online1 May 2002Published iniss…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Infared Spectra of Metalloporphyrins (4000-160 Cm-1)L. J. Boucher and J. J. KatzCite this: J. Am. Chem. Soc. 1967, 89, 6, 1340–1345Publication Date (Print):March 1, 1967Publication History Published online1 May 2002Published inissue 1 March 1967https://pubs.acs.org/doi/1…
The NaCl-type compounds Eu1−xGdxSe form a continuous series of solid solutions between the ferromagnetic insulator EuSe and the antiferromagnetic metal GdSe. We have studied the temperature dependence of electrical resistivity ρ, in Eu1−xGdxSe single crystals and polycrystals between 2.5° and 300°K; we find, in qualit…
A method for calculating the intensities of diffracted waves in low energy electron diffraction by crystals is proposed. The elastic multiple scattering is fully taken into account. The cellular method of KOHN and ROSTOKER in the band theory of metals is applied to the integral equation of the scattering by two dimens…
The solubility of boron in graphite was determined in the temperature interval of 1800° to 2500°C. The maximum solubility was 2.35 at. % at 2350°C; the solution was shown to be substitutional.
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Survival data are presented for a fecal strain of Escherichia coli exposed to three concentrations of chlorine dioxide at four temperatures. Chick's first-order reaction equation is generalized to a pseudo nth-order model. Nonlinear least squares curve-fitting of the survival data to the nth order model was performed…
Abstract Studies of the chemistry of vulcanization today occupy a central position in current efforts to achieve better product performance from available natural and synthetic rubbers. They provide technologists with increasingly realistic pictures of the molecular make-up of vulcanizates from which relations between…
The crystal structure of α-Ga2O3, which is isostructural with α-corundum, has been refined from single-crystal x-ray diffraction data. The bond lengths have been determined to an accuracy of about 0.01 Å. The bond lengths in the GaO6 octahedron are 2.077 and 1.921 Å. The short Ga–O distance corresponds to the oxygens…
The magnetocrystalline anisotropy of several intermetallic phases of the type RCo5 (R = Y, Ce, Pr, Sm, Y-rich and Ce-rich mischmetals) has been investigated, and it is concluded that these alloys are promising candidates for fine-particle permanent magnets. They have extremely high uniaxial anisotropy (K = 5.4 to 7.7…
Share Icon Share Twitter Facebook Reddit LinkedIn Reprints and Permissions Cite Icon Cite Search Site Citation John R. Lamarsh, George I. Bell; Introduction to Nuclear Reactor Theory. Physics Today 1 March 1967; 20 (3): 110–111. https://doi.org/10.1063/1.3034192 Download citation file: Ris (Zotero) Reference Manager E…
This paper deals with various aspects of crystallization leading to oriented textures. In the first place it attempts to clarify the problem of melt-extruded polyethylene sheet, which leads to the more general problem of crystallization under stress. Lamellar crystal growth, normal to the stress direction nucleated al…
The long-range particles emitted during the spontaneous fission of $^{252}\mathrm{Cf}$ have been investigated, confirming the emission of $^{1}\mathrm{H}$, $^{2}\mathrm{H}$, $^{3}\mathrm{H}$, $^{3}\mathrm{He}$, $^{4}\mathrm{He}$, and $^{6}\mathrm{He}$. In addition it was found that $^{8}\mathrm{He}$, $^{6}\mathrm{Li}$…