Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMetal cluster topology. 10. Polyhedral gallium cluster anions in intermetallic phases of gallium and alkali metalsR. B. KingCite this: Inorg. Chem. 1989, 28, 14, 2796–2799Publication Date (Print):July 1, 1989Publication History Published online1 May 2002Published inissue 1 J…
A probabilistic approach to quantifying uncertainties in the progression of severe reactor accidents is formulated and applied to the Source Term Code Package. It is shown that quantification of uncertainties at the basic level of input parameters reveals broad time-dependent uncertainties in the core melt progression…
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 E. A. Kearsley; Note: Strain Invariants Expressed as Average Stretches. J. Rheol. 1 July 1989; 33…
Thermogravimetric analysis (TGA) and flow-reactor experiments were used to study sulfidation-regeneration of highly porous CuO-Al_2O_3 sorbents. In TGA studies, sulfidation of reduced sorbents produced a high-temperature form of digenite (Cu_(9+x)S_5) as the major crystalline product. When a platinum pan was used in t…
Pure (undoped) piezoelectric lead zirconate titanate (PZT) ceramic samples at compositions across the ferroelectric region of the phase diagram were prepared from sol-gel-derived fine powders. Excess lead oxide was included in the PZT powders to obtain dense (95-96% of theoretical density) ceramics with large grain si…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhosphoric acid on oxide carriers. 2. Surface acidity and reactivity toward olefinsGianguido Ramis, Pier Francesco Rossi, Guido Busca, Vincenzo Lorenzelli, Aldo La Ginestra, and Pasquale PatronoCite this: Langmuir 1989, 5, 4, 917–923Publication Date (Print):July 1, 1989Publi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFerromagnetic behavior in linear charge-transfer complexes. Structural and magnetic characterization of octamethylferrocene salts: [Fe(C5Me4H)2].bul.+ [A].bul.- (A = TCNE, TCNQ)Joel S. Miller, Daniel T. Glatzhofer, Dermot M. O'Hare, William M. Reiff, Animesh Chakraborty, and…
A four-spin coupling term is introduced to the pseudospin model Hamiltonian to account for the recently observed first-order phase transition in order-disorder ferroelectrics. The critical behavior is investigated and characteristic temperatures are calculated. We have also expressed the free energy in terms of micros…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of platinum loading on the photocatalytic activity and luminescence of cadmium sulfide powderToshio Uchihara, Michio Matsumura, Atsushi Yamamoto, and Hiroshi TsubomuraCite this: J. Phys. Chem. 1989, 93, 15, 5870–5874Publication Date (Print):July 1, 1989Publication His…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCharge storage on a conducting polymer in solutionM. J. Nowak, D. Spiegel, S. Hotta, A. J. Heeger, and P. A. PincusCite this: Macromolecules 1989, 22, 7, 2917–2926Publication Date (Print):July 1, 1989Publication History Published online1 May 2002Published inissue 1 July 1989…
The harmonic-balance finite-element method (HBFEM) is used to analyze the time-periodic magnetic field. The calculation is similar to that for the static nonlinear magnetic problem. The procedure is applied to a simple reactor with a saturated core and to calculate the field of an electromagnet. Comparison with result…
Multiconfiguration self consistent field (MCSCF) followed by multireference singles plus doubles configuration interaction (MRSDCI) calculations, including up to two million configurations, are carried out on low-lying electronic states of Pd3. In addition, spin-orbit effects are included using a relativistic configur…
In thinking about the states of condensed matter, we usually consider two extremes. At one extreme are crystalline solids, in which atoms form a perfectly periodic array that extends to infinity in three directions. At the other extreme are fluids or glasses, in which the atoms or molecules are completely disordered a…
Electrochemical kinetic parameters on copper plumbing surfaces were investigated under hydraulic and water quality conditions typical of distribution systems. The generally reported values of anodic and cathodic Tafel slopes were found to be inapplicable to plumbing surfaces of drinking water systems. Actual values ma…
Two Spanish palygorskites, one from Cáceres (Serradilla) and the other from Segovia (Sacramenia) are studied by means of infrared spectroscopy techniques, both in their natural state and after systematic treatment with hydrochloric acid. The first one is identified as aluminic and the second as magnesic. It is found t…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotochemistry and radiation chemistry of colloidal semiconductors. 33. Chemical changes and fluorescence in CdTe and ZnTeUte Resch, Horst Weller, and Arnim HengleinCite this: Langmuir 1989, 5, 4, 1015–1020Publication Date (Print):July 1, 1989Publication History Published on…
Mechanism and effect of DC charge accumulation on the surface of a solid insulating support (spacer) have been studied in compressed SF/sub 6/ gas using various cylindrical model spacers. The distribution of surface charged is closely related to the normal component (gas side) E/sub n/ of electric field on the spacer…
Several new classes of polar and non-polar bicyclohexane liquid crystals comprising alkenyl side chains are presented. The compounds exhibit low optical anisotropies, Δn, < 0.1 and rotational viscosities, γ1, as low as 35 cP at 22°C. This leads, in combination with large elastic expressions k = k 1 + (k 3 - 2k 2)/4 >…
Abstracts A novel degumming process is described that is applicable to both undegummed and water‐degummed oils. Such totally degummed oils have residual iron contents below 0.2 ppm Fe and residual phosphorus contents that average below 5 ppm P. Therefore, they can be physically refined to yield a stable refined oil wh…
An experimental study of the dendritic growth of pivalicacid crystals in the presence of an external controlled Stokes flow is performed. A new experimental law, relating the value of product ${\ensuremath{\rho}}^{2}$V to the external flow velocity, is found.