Materials Literature
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Structural slowing down in a simple model of a polydisperse suspension of charge-stabilized colloidal particles is explored by molecular-dynamics and Brownian-dynamics simulations. The former ignore solvent effects, but allow a comparison with recent experimental, numerical, and theoretical work on ``fragile'' glass f…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAging processes of alumina sol-gels: characterization of new aluminum polyoxycations by aluminum-27 NMR spectroscopyG. Fu, L. F. Nazar, and A. D. BainCite this: Chem. Mater. 1991, 3, 4, 602–610Publication Date (Print):July 1, 1991Publication History Published online1 May 200…
Vibrational spectra have been measured by neutron scattering for a series of Se-Ge and Se-As-Ge glasses, spanning a wide range in composition and, consequently, in network connectivity. Low-frequency ``floppy'' modes arising from underconstrained atomic configurations have been observed, in qualitative agreement with…
coatings were deposited on graphite and titanium from an aqueous solution based on a water‐soluble precursor. A two‐step mechanism is suggested for the formation: generation of hydroxyl ions (OH − ) at the cathodic substrate by reduction of and dissolved , and then reaction of the hydroxyl ions with zirconyl ions pres…
Lithium batteries using solid redox polymerization electrodes (SRPEs) maintain the inherent advantages of all‐solid‐state, thin‐film systems while overcoming some of the limitations of using intercalation compounds as positive electrode ( i.e. , insufficient rate capability and capacity utilization). Laboratory Li/PEO…
Abstract In the presence of a bis(1,3-diketonato)nickel(II) complex, various olefins are directly monooxygenated into the corresponding epoxides on treatment with atmospheric pressure of oxygen or air and aldehydes. Especially, it is noted that bis[1,3-bis(p-methoxyphenyl)-1,3-propanedionato]nickel(II) behaves as an e…
Review: Ceramic multilayer capacitors used in surface‐mount electronics have decreased in size by a factor of four over the last five years while their capacitance per unit volume has increased by the same factor. The preparation and processing procedures applied to ultrafine dielectric ceramic powders used in the cap…
In order to make clear the relationship between the microstructure of the porous oxide layer and electrochemical properties of air electrodes of solid oxide fuel cells, air/porous oxide/yttria stabilized zirconia, complex‐impedance and cathodic polarization were measured on the electrodes at 900–1000°C with the porous…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotochemical ring-opening reaction of indolinespiropyrans studied by subpicosecond transient absorptionNiko P. Ernsting and Thomas Arthen-EngelandCite this: J. Phys. Chem. 1991, 95, 14, 5502–5509Publication Date (Print):July 1, 1991Publication History Published online1 May…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTScanning tunneling microscopy studies of carbon-oxygen reactions on highly oriented pyrolytic graphiteHsiangpin Chang and Allen J. BardCite this: J. Am. Chem. Soc. 1991, 113, 15, 5588–5596Publication Date (Print):July 1, 1991Publication History Published online1 May 2002Publ…
A thermal description of the electron-ion interaction in the cooling phase of the displacement cascade in metals is given. Differential equations governing the transfer of heat between the two systems are derived and solved numerically using physically reasonable parameters for cascades in Cu and Ni. Large differences…
The Atlas of Crystal Structure Types for Intermetallic Phases offers you pictorial detail, clearly illustratedThe Atlas is the perfect reference to keep on your shelf beside the Second Edition of Pearson's Handbook. For each structure type, you can quickly find for all atoms (point sets): A list of all coordination at…
ADVERTISEMENT RETURN TO ISSUEPREVArticleFacile syntheses of new incompletely condensed polyhedral oligosilsesquioxanes: [(c-C5H9)7Si7O9(OH)3], [(c-C7H13)7Si7O9(OH)3], and [(c-C7H13)6Si6O7(OH)4]Frank J. Feher, Theodore A. Budzichowski, Rusty L. Blanski, Keith J. Weller, and Joseph W. ZillerCite this: Organometallics 19…
Six designed mutants of T4 lysozyme were created in an attempt to create putative salt bridges on the surface of the protein. The first three of the mutants, T115E (Thr 115 to Glu), Q123E, and N144E, were designed to introduce a new charged side chain close to one or more existing charged groups of the opposite sign o…
The effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on ATP levels in different areas of mouse brain were studied after rapid fixation of cerebral tissue in situ by microwave irradiation. ATP levels in the striatum, ventral mesencephalon, and cerebellum of untreated C57BL/6 mice killed by microwave irrad…
Experimental and theoretical studies of the brittle-ductile transition (BDT) of precracked single crystals of silicon are discussed. For a given strain-rate the temperature T c at which the BDT occurs varies by up to 250 K for similar materials but different test geometries. However, for a given material and geometry…
Abstract We have used internally‐consistent thermodynamic data to present calculated phase equilibria for the system Na 2 O‐CaO‐MgO‐Al 2 O 3 ‐SiO 2 ‐H 2 O (NCMASH), in the range 0–500° C and 0.1–10 kbar, involving the phases anorthite, glaucophane, grossular, heulandite, jadeite, laumontite, lawsonite, paragonite, pre…
Polyethylene oxide (PEO) of molecular weights 5,000, 10,000, 18,500, and 100,000 g/mol was covalently grafted to surfaces of otherwise cell adhesive polyethylene terephthalate (PET) films. Analysis of these surfaces by measurement of contact angles and ESCA verified the presence of the grafted PEO. Protein adsorption…
Abstract The γ-phase crystal of 2-(4′-nitrophenyl)-4,4,5,5-tetramethyl-4 5-dihydro-1H−imidazol-1-oxy-3-N-oxide is shown to become a bulk ferromagnet below about 0.65 K from the measurements of magnetization of magnetic susceptibility and heat capacity.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConceptual aspects of structure-property correlations and electronic instabilities, with applications to low-dimensional transition-metal oxidesEnric. Canadell and Myung Hwan. WhangboCite this: Chem. Rev. 1991, 91, 5, 965–1034Publication Date (Print):July 1, 1991Publication…