Magnetic, Electric, and Crystallographic Properties of Gallium Iron Oxide
Received 3 November 1964DOI:https://doi.org/10.1103/PhysRevLett.13.688©1964 American Physical Society
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Chlorinated Xylene Derivatives for Flame-Retardant Rigid Polyurethane Foams
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChlorinated Xylene Derivatives for Flame-Retardant Rigid Polyurethane FoamsF. B. Slezak, J. P. Stallings, and Irving RosenCite this: Ind. Eng. Chem. Prod. Res. Dev. 1964, 3, 4, 292–294Publication Date (Print):December 1, 1964Publication History Published online1 May 2002Publ…
Studies on cancrinites; Part 2, Stability fields and cell dimensions of calcium and potassium-rich cancrinites
Cancrinites of compositions 3NaAlSiO 4 XCaCO 3 ,3NaAlSiO 4 XCa(OH) 2 and 3NaAlSiO 4 XK 2 O 3 were made in the 200 degrees to 800 degrees C range at 10,000 to 30,000 psi of water pressure. The first two compositions did not dissociate at upper pressure and temperature limits but the third composition dissociated to nep…
Volatility of PuO 2 in Nonreducing Atmospheres
The vapor pressure of plutonium dioxide (PuO 2 ) was investigated in the range 1450° to 1775°C in air, argon, and oxygen atmospheres by a transpiration technique. There were strong indications that PuO 2 can vaporize congruently or as a suboxide species, depending on the atmosphere. The δH° 298 for vaporization in 1 a…
AGENTS AFFECTING LIPID METABOLISM: XIII. THE SYNTHESIS OF 1,4-DISUBSTITUTED BICYCLO[2.2.2]OCTANE DERIVATIVES
Several routes to the synthesis of 1,4-disubstituted bicyclo[2.2.2]octanes have been explored and the syntheses of several such derivatives are reported. The 1,4-disubstituted bicyclo[2.2.2]-octane nucleus could not be prepared through an elimination reaction on a corresponding 2,5-disubstituted derivative or by the D…
Frequency Shift in Magnetic Transitions between Hyperfine Levels of 2P3/2 States of Cs133
By using the double resonance method, transitions F =5→ F =4 and F =3→ F =2 are measured for 7 2 P 3/2 and 8 2 P 3/2 states of Cs 133 atom ( I =7/2). Frequency shifts proportional to the input power are observed. In order to compare with the experiment, the theory of frequency shift due to radiation is generalized to…
PHOTOCHEMICAL SYNTHESES: 9. THE CONVERSION OF DIBENZOYLMETHANE TO TRIBENZOYLETHANE
Irradiation of dibenzoylmethane in benzene gives tribenzoylethane. In more concentrated solution a solid dimer (II) separates which, on solution, is converted by dealdolization into an isomer. This isomer (I, R = H) on irradiation, gives tribenzoylethane in a photolytic reaction which has been shown to have some gener…
Influence of Radiation on the Cavitation Threshold of Degassed Water
A study was made of cavitation induced in water at the center of a 12-liter spherical resonator at a frequency of 25 kc/sec. For water degassed so that the equilibrium air pressure above it was less than 4 mm Hg, the threshold was found to be 9±3 atm, provided that the sound field was not radically different from an i…
Volatility of UO 2±x and Phase Relations in the System Uranium—Oxygen
The volatility of UO 2±x and the phase relations in the system uranium‐oxygen were studied using thermogravimetric techniques. Chemical reactions describing the loss of uranium from UO 2±x at temperatures between 1100° and 2200°C in oxygen pressures between approximately 10 2 and 10 −6 torr are proposed. Results were…
The Influence of Mean Stress on the Mechanical Hysteresis Loop Shift of 1100 Aluminum
Research Papers The Influence of Mean Stress on the Mechanical Hysteresis Loop Shift of 1100 Aluminum L. F. Coffin, Jr. L. F. Coffin, Jr. Research Laboratory, General Electric Company, Schenectady, N. Y. Search for other works by this author on: This Site PubMed Google Scholar Author and Article Information L. F. Coff…
Mechanical Properties of Pure, Dense Magnesium Oxide as a Function of Temperature and Grain Size
The elastic modulus and transverse bend strength of pure, dense magnesia were determined as a function of grain size (1 to 190μ) and temperature (30° to 1500°C). The elastic modulus was essentially independent of grain size over the temperature range covered. The transverse bend strength for magnesia revealed a 1/6 po…
Samarium and Lanthanum Tungstates of the 3R2O3.WO3 Type
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSamarium and Lanthanum Tungstates of the 3R2O3.WO3 TypeLuke L. Y. Chang and Bert PhillipsCite this: Inorg. Chem. 1964, 3, 12, 1792–1794Publication Date (Print):December 1, 1964Publication History Published online1 May 2002Published inissue 1 December 1964https://doi.org/10.1…
Untersuchungen an ternären Oxiden der Übergangsmetalle. III. Die Rutilphase (V1−xNbx)O2
Abstract VO 2 und NbO 2 bilden eine Rutilphase (V 1−x Nb x )O 2 . Der tetragonale Bereich erstreckt sich von x = 0,1 bis ∼0,9. Aus Suszeptibilitätsmessungen und Messungen der elektrischen Leitfähigkeit folgt, daß die Rutilphase sich aus den beiden Mischkristallreihen (V V Nb )O 2 mit 0 < x < 0,5 und (V Nb Nb )O…
Infrared Absorption Spectroscopy in Zirconia Research
Infrared absorption spectra are shown for monoclinic ZrO 2 and for cubic stabilized ZrO 2 . Nine bands are reported in monoclinic ZrO 2 in the region 800 to 200 cm −l , whereas only one broad band is observed in cubic ZrO 2 over the same frequency range.
Calculated High‐Temperature Elastic Constants for Zero Porosity Monoclinic Zirconia
A method was developed for hot‐pressing 80 to 95% dense, polycrystalline specimens of commercially available, unstabilized, monoclinic zirconia. The elastic moduli of these specimens were measured by a sonic method in the range 25° to 1000°C. Application of mathematical expressions developed for the porosity dependenc…
Electron-Impact Desorption of Carbon Monoxide from Tungsten
The low-energy electron impact desorption of CO adsorbed on W has been investigated by means of a field emission technique. It was found that the previously postulated binding modes of CO could be distinguished and confirmed by their differing desorption cross sections which are σvirgin=3×10—19 cm2, σvirgin to β≥10—19…
Lattice Defects in Tetragonal ZrO 2
The activity of zirconium in the tetragonal ZrO 2 phase was measured at 2200° to 2300°K as a function of composition by studying the reaction image From the variation of the zirconium activity with composition, the pairwise interaction energy E 11 between vacancies in the oxygen lattice was evaluated at ‐4.6 ± 1.0 kca…
ATTENUATION OF PHOTOEXCITED ELECTRONS IN Cu AND HOLES IN Al
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation L. B. Leder, M. E. Lasser, D. C. Rudolph; ATTENUATION OF PHOTOEXCITED ELECTRONS IN Cu AND HOLES I…
Prediction of Curie Temperatures in Ternary Fe-Co-Ni Alloys. II
The model (for predicting Curie temperatures of ternary alloys) developed in a previous paper is extended by removing the assumption that the fraction of plus and minus spins contributed by an element in the alloy is directly proportional to the concentration of the element. Empirical data concerning the Curie tempera…
Photosensitized Coloration of Photochromic Spiropyrans
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotosensitized Coloration of Photochromic SpiropyransTuvia. Bercovici and Ernst. FischerCite this: J. Am. Chem. Soc. 1964, 86, 24, 5687–5688Publication Date (Print):December 1, 1964Publication History Published online1 May 2002Published inissue 1 December 1964https://pubs.a…