Materials Literature
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Article Thermodynamic Properties of the Fe-Co-Ni-C System / Thermodynamische Eigenschaften des Systems Fe-Co-Ni-C was published on August 1, 1988 in the journal International Journal of Materials Research (volume 79, issue 8).
Nur induktiv stabilisiert ist das Pentalenderivat 2, das aus dem Dihydroderivat 1 mit Nickelperoxid erhalten wurde. Aus einem Vergleich der spektroskopischen Daten mit den Ergebnissen von MNDO-Rechnungen läßt sich eine Dominanz der gezeichneten Kekulé-Struktur, d. h. eine Bindungsfixierung, ableiten.
(CH3)3 NHNO3 belongs to the monoclinic system with space group P21/c (C52h ) with four molecules per unit cell. Raman and infrared spectra (10–5000 cm−1) of single crystals and polycrystalline samples of (CH3)3 NHNO3 and of its N-deuterated derivative were investigated in the temperature range 90–415 K. Assignments of…
Electrolytic metal migration is a mechanism which causes failure in microelectronic devices. This failure mechanism results in dendritic growths which bridge the electrode spacing between adjacent conductors on an insulating substrate and produce electrical failure. Accelerated life tests have been developed to study…
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The electron mobility in the semiconductor alloys near compositions where the direct-to-indirect gap transition takes place can be a rapidly varying function of lattice temperature. Electron mobility limited by scattering mechanisms such as acoustic phonons, optical phonons, and alloy disorder is calculated for severa…
Abstract A research programme has been developed to characterize the corrosion behaviour of the metals most widely used in solar collector systems. Common heat transfer fluids such as glycol/water solutions show a low aggressivity, unless pollution or high temperature exposure (degradation) occur. This paper deals wit…
The chemistry of metal-metal bonded metalloporphyrins has undergone significant development during the last decade. The synthesis, chemical reactivity, physical properties and electrochemistry of metal-metal bonded metalloporphyrins containing both σ and donor-acceptor bonds are presented. These new classes of metallo…
The problem of a dielectric slab inside a parallel-plate capacitor is considered from the point of view of a simple force calculation. The usual method of presenting this problem, found in most textbooks, is via energy considerations. The method presented here allows corrections to the well-known result to be obtained.
Abstract A large amount of solids of (2-hydroxyethyl)trimethylammonium silicate, whose silicate skeleton has the double four-membered ring structure, was abruptly separated out from the mixed solution of (2-hydroxyethyl)trimethylammonium hydroxide aqueous solution and tetraethoxysilane after a few hours of stirring.
A systematic investigation of the magnetic properties of neodymium-cobalt-boron alloys rapidly solidified by melt spinning is reported. Room-temperature coercivities and energy products as large as 10.2 kOe and 5.2 MGOe, respectively, have been observed in ribbons comprised primarily of tetragonal Nd2Co14B. We find th…
The pentalene derivative 2 is only inductively stabilized. It was obtained by reaction of the dihydro derivative 1 with nickel peroxide. Comparison of the spectroscopic data with the results of MNDO calculations indicates that the Kekulé structure shown here dominates; that is, the bonds are fixed.
Abstract not Available.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStatistics of free-radical polymerizations revisited using a fragment approach. 1. Bifunctional monomersRoberto J. J. WilliamsCite this: Macromolecules 1988, 21, 8, 2568–2571Publication Date (Print):August 1, 1988Publication History Published online1 May 2002Published inissu…
Abstract The melt rheological properties of nickel powder filled polypropylene composites were investigated. The effect of filler concentration on shear stress‐shear rate data, melt viscosity and melt elasticity parameters were determined by using a capillary rheometer. The study shows that the materials follow a powe…
Iron, titanium, and vanadium analysis were performed on the tunicates Pyura chilensis Molina, 1782, and Ascidia dispar, and the inorganic chemistry of blood was investigated. The major ionic characterization of the blood plasma and cytosolic solutions were determined. Gel chromatography was used to secure information…
Single crystals of the magnetoplumbite (MP)-like compounds La1−xCex MgAl11O19 (0≤x≤1) have been grown from the melt by the flame fusion method. These crystals have been characterized by optical absorption and fluorescence which occur between 4f and 5d levels as well as by electron spin resonance at 20 K. For dilute sa…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation of singlet molecular oxygen (1.DELTA.gO2) in a solution-phase photosensitized reaction. 2. A comment on static quenchingKai Kong Iu and Peter R. OgilbyCite this: J. Phys. Chem. 1988, 92, 16, 4662–4666Publication Date (Print):August 1, 1988Publication History Publis…
Amorphous C:H films were prepared by rf glow discharge decomposition from CH 4 using a permanent magnet system to apply a static magnetic field perpendicular to the rf electric field. The structure and properties of a-C:H films have been investigated systematically with respect to the hydrogen content, hardness and co…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSensitization and photoredox reactions of zinc(II) and antimony(V) uroporphyrins in aqueous mediaK. Kalyanasundaram, J. A. Shelnutt, and Michel GraetzelCite this: Inorg. Chem. 1988, 27, 16, 2820–2825Publication Date (Print):August 1, 1988Publication History Published online1…