Materials Literature
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Nickel oxide films were deposited by reactive RF magnetron sputtering. Optical and electrochemical characterization showed strong electrochromic activity under certain deposition conditions. X‐ray diffraction and infrared absorption measurements indicate that the films are polycrystalline and that the bulk crystal str…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRelationship between energy and hardness differencesJose L. Gazquez, Ana Martinez, and Francisco MendezCite this: J. Phys. Chem. 1993, 97, 16, 4059–4063Publication Date (Print):April 1, 1993Publication History Published online1 May 2002Published inissue 1 April 1993https://p…
A transparent glass plate was roughened at the submicron level, and then a chemically adsorbed monolayer of a fluorocarbon compound was formed along the glass surface. The monolayer was prepared using the chemical coupling reaction accompanying dehydrochlorination between a chlorosilyl group of the heptadeca-fluorodec…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGas/vapor adsorption in imogolite: a microporous tubular aluminosilicateWilliam C. Ackerman, Douglas M. Smith, Jeffrey C. Huling, Yong Wah Kim, Joseph K. Bailey, and C. Jeffrey BrinkerCite this: Langmuir 1993, 9, 4, 1051–1057Publication Date (Print):April 1, 1993Publication…
The temperature dependence of infrared reflection spectra of single crystals of n-type strontium titanate doped with 0.3 to 1.5 at. % niobium are reported from 10 to 5 000 ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$ in the temperature range 80--900 K. Results are analyzed by means of various factorized forms of the die…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProton and carbon-13 NMR investigations of lead zirconate titanate (Pb(Zr,Ti)O3) thin-film precursor solutionsR. A. Assink and R. W. SchwartzCite this: Chem. Mater. 1993, 5, 4, 511–517Publication Date (Print):April 1, 1993Publication History Published online1 May 2002Publish…
In a number of isostructural sesquioxides M 2 O 3 (M=Sc, In, Y, Yb, Dy, Ho, Sm, Gd) with the bixbyite structure the electric field gradients at substitutional 111 Cd nuclei show a regular and smooth dependence on the lattice constant. The electric field gradients allow the positions of all atoms in the unit cell to be…
Single-crystal structure determinations of the spin crossover compounds [Fe(ptz) 6 ]X 2 , and [Fe(mtz) 6 ]X 2 (ptz=C 3 H 7 N 4 CH, mtz=CH 3 N 4 CH, X=BF 4 , ClO 4 ) have been performed at different temperatures. The temperature dependence of the lattice constants was measured for the two mtz compounds between 300 and…
We examined partial or complete replacement of synthetic sorbents by cotton- containing nonwovens for use in oil spill cleanup. The results indicate that with light crude oil, oil sorption capacities of the needlepunched cotton-containing sorbents were slightly greater than those of sorbents made from 100% polypropyle…
A detailed atomistic approach has been used to investigate the kinematics of plastic deformation in glassy atactic polypropylene to 20% strain. The microstructural stress-strain behaviour was found to consist of smooth reversible portions bounded by irreversible sharp stress drops indicating plastic rearrangement of t…
Structure and Dynamics of Lanthanoid Tetraazacyclododecanetetraacetate DOTA Complexes in Solution In aqueous solution lanthanoid DOTA complexes exist as a mixture of two stereoisomers, and their structures have been determined from the dipolar parts of the observed 1 H‐NMR chemical shifts for EuDOTA and YbDOTA. The re…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, characterization, and ceramic conversion reactions of borazine-modified hydridopolysilazanes: new polymeric precursors to silicon nitride carbide boride (SiNCB) ceramic compositesKai Su, Edward E. Remsen, Gregg A. Zank, and Larry G. SneddonCite this: Chem. Mater.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLateral instabilities in a grafted layer in a poor solventChuck Yeung, Anna C. Balazs, and David JasnowCite this: Macromolecules 1993, 26, 8, 1914–1921Publication Date (Print):April 1, 1993Publication History Published online1 May 2002Published inissue 1 April 1993https://pu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTheory of the isotropic-nematic-nematic phase separation for a solution of bidisperse rodlike particlesG. J. Vroege and H. N. W. LekkerkerkerCite this: J. Phys. Chem. 1993, 97, 14, 3601–3605Publication Date (Print):April 1, 1993Publication History Published online1 May 2002P…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBimetallic lanthanide complexes with lanthanide-transition metal bonds. Molecular structure of (C4H8O)(C5H5)2LuRu(CO)2(C5H5). The use of 139La NMR spectroscopyI. P. Beletskaya, A. Z. Voskoboynikov, E. B. Chuklanova, N. I. Kirillova, A. K. Shestakova, I. N. Parshina, A. I. Gu…
Abstract Nanometer sized cadmium sulfide particles were prepared in N,N‐dimethylformamide, using thiourea as the sulfurizing agent and thioglycerine as stabilizer. For particles with diameters of less than 40 Å the size dependent solubility was utilized to separate the particles according to their size. The absorption…
A rigorous modal analysis of lamellar gratings, i.e. gratings having rectangular grooves, in conical mountings is presented. It is an extension of the analysis of Botten et al. which considered non-conical mountings. A key step in the extension is a decomposition of the electromagnetic field in the grating region into…
and , which are known to be excellent proton conductors, are potential candidates as electrolytes in hydrogen concentrators and fuel cells. The anticipated application temperature is in the range of ∼500 to ∼1000°C. Typical synthesis/densification temperature of these cerates using conventional processing methods is ∼…
Twenty-five gram-negative bacteria and one gram-positive bacterium capable of growing on poly(3-hydroxyoctanoic acid) [P(3HO)] as the sole source of carbon and energy were isolated from various soils, lake water, and activated sludge. Most of the isolates degraded only P(3HO) and copolymers of medium-chain-length (MCL…
A dynamic model that computes the flashover voltages of polluted insulators energized with DC voltage is presented. The salient feature of this model is that it takes into account the configuration of the insulator profile at every instant, which plays an important role in the flashover process of the DC polluted insu…