Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpectroscopic and Magnetostructural Correlations in Oxo-Bridged Dinuclear Vanadium(III) Complexes of Potential Biological SignificanceMarcus R. Bond, Roman S. Czernuszewicz, Bakul C. Dave, Qing Yan, Madan Mohan, Ruben Verastegue, and Carl J. CarranoCite this: Inorg. Chem. 19…
The objective of the work reported here was to characterize the tarnish products formed on copper during the early stages of exposure to moist air with trace levels of pollutant gas, in particular, sulfur dioxide and sulfur dioxide/nitrogen dioxide. A mixed‐flowing‐gas chamber was used to control part per billion (ppb…
Chain molecules formed from m tangent hard-sphere segments are of particular interest in studies of liquid crystalline phases because they represent one of the simplest models which can account for molecular flexibility. In this paper we obtain analytical expressions for the excluded volume for a pair of linear homonu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of NO Pressure on the Reaction of NO and CO over Rh(111)Haryani Permana, K. Y. Simon Ng, Charles H. F. Peden, Steven J. Schmieg, and David N. BeltonCite this: J. Phys. Chem. 1995, 99, 44, 16344–16350Publication Date (Print):November 1, 1995Publication History Publishe…
The damage produced by displacement cascades in the h.c.p. metal α-titanium at 100K has been investigated by molecular dynamics using a many-body interatomic potential. This has been the first simulation of cascades in the h.c.p. structure. 32 cascades ranging in energy from 0.3 to 5 keV were generated in order to stu…
Combined high-resolution neutron and x-ray diffraction experiments have been performed on several differently prepared single crystals of ${\mathrm{SrTiO}}_{3}$ in order to investigate the two length scales present near the cubic-to-tetragonal phase transition occurring at ${\mathit{T}}_{\mathit{c}}$\ensuremath{\sim}1…
Reasonable assumptions about the statistical properties of errors in an atomic model lead to the probability distributions for the values of structure-factor phases. These distributions contain some generally unknown parameters reflecting how large the model errors are. These parameters must be determined properly to…
The peculiar polar properties of ${\mathrm{KTa}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{Nb}}_{\mathit{x}}$${\mathrm{O}}_{3}$ (KTN) are determined by the presence of electric dipoles associated with randomly distributed Nb off-center ions. Because the latter also possess an elastic quadrupole, they should permi…
Abstract The application of phenol-formaldehyde resins as crosslinking agents is increasing in importance due to the good high temperature properties of the corresponding vulcanizate and the use in thermoplastic vulcanizates. With respect to the chemistry of phenol-formaldehyde cure (reaction mechanism and structure o…
An InP epitaxial layer with a dislocation-free area was obtained for the first time on (001) Si substrate by using the epitaxial lateral overgrowth (ELO) technique. Most etch pits appeared in the region over the seed area on the ELO stripe. This indicates that the SiO 2 film between the lateral overgrowth layer and th…
It has long been recognized that Ni-Ti shape memory alloys (SMAs) behave pseudo-elastically above the austenite finish temperature (Af) with a nearly perfectly plastic character during the initial cycles of transformation. Under conditions of cyclic loading with a maximum strain ∈ max , the critical stress to initiate…
Epitaxial thin films of BaTiO3 have been prepared using radio-frequency magnetron sputter deposition on MgO(100) substrates. Various x-ray-diffraction techniques were employed to characterize the crystal structure of the films. The films were fully tetragonal and consisted of c domains. Their tetragonality has been sh…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComplex Formation between Poly(dimethyldiallylammonium chloride) and Carboxylated Starburst DendrimersYingjie Li, Paul L. Dubin, Ralph Spindler, and Donald A. TomaliaCite this: Macromolecules 1995, 28, 24, 8426–8428Publication Date (Print):November 1, 1995Publication History…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectron Spin Polarization Transfer from Excited Triplet Porphyrins to a Nitroxide Radical via a Spin Exchange MechanismJun-ichi Fujisawa, Kazuyuki Ishii, Yasunori Ohba, Masamoto Iwaizumi, and Seigo YamauchiCite this: J. Phys. Chem. 1995, 99, 47, 17082–17084Publication Date…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT.alpha.-Diazo Ketones as Photochemical DNA Cleavers: A Mimic for the Radical Generating System of Neocarzinostatin ChromophoreKazuhiko Nakatani, Satoshi Maekawa, Kazuhito Tanabe, and Isao SaitoCite this: J. Am. Chem. Soc. 1995, 117, 43, 10635–10644Publication Date (Print):No…
The collapse of a cavitation bubble is examined by direct numerical simulations of the Navier–Stokes equations, using a finite difference/front tracking technique. Bubbles in both a quiescent fluid as well as shear flows are examined. For quiescent fluid, the results are compared with theoretical and previous computat…
Some perovskite-type transition-metal mixed oxide powders active in the combustion catalysis, with formulas LaMO(3) (M = Fe, Cr, Co, and Mn), have been prepared by different methods. Similarly, potential supports for combustion catalysts nearly isostructural with the above ones have been prepared, with compositions Sr…
No abstract available.
Polyaspartic acid, a polymeric form of aspartic acid (C4H7NO4), was examined as a corrosion inhibitor for steel as a function of pH, temperature, and hydrodynamic conditions. The temperature ranged from 25°C to 95°C, and the concentration ranged from < 1 wt% to ~ 10 wt%. Experimental procedures included electro…
Abstract A previous study of this toposequence from semiarid northeastern Brazil concluded that processes of P transformation in semiarid tropical landscapes with steep slopes are difficult to describe with concepts developed in temperate regions. In these soils, derived from syenitic rocks, particle‐size fractions re…