Materials Literature
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The properties of a quasi-one-dimensional (quasi-1D) superconductor with an open Fermi surface are expected to be unusual in a magnetic field. On the one hand, the quasi-1D structure of the Fermi surface strongly favors the formation of a nonuniform state [Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) state] in the presence…
Changes in the surface structure of the single-crystal Si/SiO 2 /Si system during vacuum heating (950-1200° C) have been investigated using atomic force microscopy and scanning Auger electron microscopy. When the top Si layer is sufficiently thin, e.g. , below ∼30 nm for heating at 1100° C, holes are formed due to Si…
We have studied the temporal variation of the visible photoluminescence from rapid thermally oxidized porous silicon prepared from n+ substrates. In contrast to the red (slow band) emission, which is observable immediately after high-temperature oxidation, the blue (fast band) emission is shown to become prevalent onl…
The effect of slurry flocculation on the characteristics of silicon nitride granules prepared by the spray drying process is investigated. The flocculation state of an aqueous silicon nitride slurry is controlled by adding nitric acid and evaluated as a function of pH. Dense and hard silicon nitride granules result fr…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactivity of a Tetrakis(pyrazolyl)borate Oxorhenium ComplexAntonio Paulo, Angela Domingos, Joaquim Marcalo, Antonio Pires de Matos, and Isabel SantosCite this: Inorg. Chem. 1995, 34, 8, 2113–2120Publication Date (Print):April 1, 1995Publication History Published online1 May…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Structure of Sodium Tellurite Glasses: Sodium Cation Environments from Sodium-23 NMRS. L. Tagg, R. E. Youngman, and J. W. ZwanzigerCite this: J. Phys. Chem. 1995, 99, 14, 5111–5116Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Publish…
Abstract Rice hull silica and a rice hull carbon ash were evaluated as adsorbents for the soy oil bleaching process under commercial temperature and pressure conditions. Their performance in adsorbing pigment, phospholipid, free fatty acids, and peroxides was compared with that of a commercial bleaching clay and silic…
Abstract Morphology and oxygen permeability studies were carried out for blends of poly(ethylene terephthalate), PET, and poly(ethylene 2,6‐naphthalate), PEN, with poly(ethylene‐co‐vinyl alcohol), EVOH. PET/EVOH blends are seen as a possible substitute for poly(vinylidene chloride)‐coated PET packaging films. The effe…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRelaxation Behavior of Polyimides Based on 2,2'-Disubstituted BenzidinesJohn C. Coburn, Paul D. Soper, and Brian C. AumanCite this: Macromolecules 1995, 28, 9, 3253–3260Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Published inissue 1 Ap…
A novel poly-beta-hydroxybutyrate (PHB) production system in which the expression and gene dosage of the Alcaligenes eutrophus pha biosynthetic operon were effectively regulated by cultivation temperature was constructed in Escherichia coli. The pha operon was fused to the negatively regulated tac promoter and cloned…
Other| April 01, 1995 Viscosity regimes of homogeneous silicate melts Yan Bottinga; Yan Bottinga Institut de Physique du Globe, Department des Geomateriaux, Paris, France Search for other works by this author on: GSW Google Scholar Pascal Richet; Pascal Richet Search for other works by this author on: GSW Google Schol…
Abstract The voltammetric behavior in alkaline solution of a nickel‐based chemically modified electrode (Ni‐CME) prepared by oxidative electropolymerization of a nickel–tetraazaannulene complex (Ni II L) was investigated. After electrochemical deposition of the (Ni II L) n film in dichloromethane on a conducting subst…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOxidation of Nickel(II) Tetraphenylporphyrin Revisited. Characterization of Stable Nickel(III) Complexes at Room TemperatureJyoti Seth, Vaithianathan Palaniappan, and David F. BocianCite this: Inorg. Chem. 1995, 34, 8, 2201–2206Publication Date (Print):April 1, 1995Publicati…
Other| April 01, 1995 The crystal structure of pararealgar, As4S4 Paola Bonazzi; Paola Bonazzi Universita di Firenze, Dipartimento di Scienze della Terra, Florence, Italy Search for other works by this author on: GSW Google Scholar Silvio Menchetti; Silvio Menchetti Search for other works by this author on: GSW Google…
This paper presents an overview of the practices employed by utilities and industries to combat the contamination problem with ceramic insulators. It emphasizes two popular methods, namely, coating insulators with greases and RTV (room temperature vulcanizing) silicone rubber coatings. The experience to date, applicat…
The paper reports on a study of the influence of the size of the particles of alumina trihydrate (ATH-Al/sub 2/O/sub 3/.3H/sub 2/O) filler on the life of room temperature vulcanised (RTV) silicone rubber coating in a salt-fog chamber. The particle sizes examined include 1.0, 4.5, 13, 17 and 75 /spl mu/m. The optimum s…
An automated apparatus has been developed to measure the transport of water vapor through coated and uncoated fabrics, fabric laminates, thin foams, and solid films under a variety of conditions. The apparatus is more convenient to use than the traditional test methods for textiles and clothing materials; it allows on…
Complete conductivity spectra of a lithium ion-conducting glass of composition B2O3-0·56Li2O-0·45LiBr have been taken at twelve temperatures, covering the frequency range from a few hertz to about 50THz. For the first time, a separation of the hopping and vibrational contributions to the spectra has been performed. Th…
Abstract New three-component organic conductors, (BEDT-TTF)2MM′(SCN)4 [M = K, Rb, Cs; M′ = Co, Zn, Cd], are prepared. The crystal structure analyses of α-ET2CsCo(SCN)4, ETZn(SCN)3, α-ET2RbZn(SCN)4, α-ET2CsZn(SCN)4, α-ETCd0.66(SCN)2, and ET2CsCd(SCN)4 are carried out. Most of salts have the α-type donor arrangement and…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and Characterization of Carboxylic Acid-Functionalized Polypyrrole-Silica MicroparticlesShuichi Maeda, Roberto Corradi, and Steven P. ArmesCite this: Macromolecules 1995, 28, 8, 2905–2911Publication Date (Print):April 1, 1995Publication History Published online1 Ma…