Shreyas S. Kher、James T. Spencer1992-05-01Chemistry of Materials
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemical vapor deposition precursor chemistry. 3. Formation and characterization of crystalline nickel boride thin films from the cluster-assisted deposition of polyhedral borane compoundsShreyas S. Kher and James T. SpencerCite this: Chem. Mater. 1992, 4, 3, 538–544Publicat…
Diamond and Carbon-based Materials ResearchBoron and Carbon Nanomaterials ResearchMachine Learning in Materials Science
Hergen Eilers、E. Strauß、W. M. Yen1992-05-01Physical review. B, Condensed matter
We have used photothermal-beam-deflection spectroscopy to measure the change in the index of refraction of ${\mathrm{Ti}}^{3+}$-doped sapphire after pulsed excitation at 532 nm with a neodymium-doped yttrium aluminum garnet laser. The beam-deflection signal arises from both thermal and nonthermal sources. The nontherm…
Glass properties and applicationsPhotorefractive and Nonlinear OpticsSolid State Laser Technologies
Harry R. Allcock、Dennis C. Ngo1992-05-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of poly[bis(phosphazo)phosphazenes] bearing aryloxy and alkoxy side groupsHarry R. Allcock and Dennis C. NgoCite this: Macromolecules 1992, 25, 11, 2802–2810Publication Date (Print):May 1, 1992Publication History Published online1 May 2002Published inissue 1 May 19…
Synthesis and characterization of novel inorganic/organometallic compoundsFlame retardant materials and propertiesSynthesis and properties of polymers
Emil M. Georgiev、D. Max Roundhill、Koljo Troev1992-05-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConversion of chlorofluorocarbons into chlorofluorohydrocarbons using the Atherton-Todd reaction with dimethyl phosphonateEmil Georgiev, D. Max Roundhill, and Koljo TroevCite this: Inorg. Chem. 1992, 31, 10, 1965–1968Publication Date (Print):May 1, 1992Publication History Pu…
Porphyrin and Phthalocyanine ChemistryFluorine in Organic ChemistryChemical Synthesis and Reactions
A. Srinivasan、K. Ramesh、K. N. Madhusoodanan 等 4 位作者1992-05-01Philosophical Magazine Letters
High-pressure resistivity measurements have been performed on Ge7·5AsxTe92·5-x. (x = 20, 40, 45, 50 and 55) and Ge10AsxTe90-x(x= 15, 20, 35, 40, 45 and 50) glasses. The glasses show reversible metallization behaviour under pressure. The pressure derivative of the logarithm of the resistivity of the glasses is a minimu…
Glass properties and applicationsMetallic Glasses and Amorphous AlloysPhase-change materials and chalcogenides
Élie Raphaël、Jean-Marc Di Meglio、Marcel Berger 等 4 位作者1992-05-01Journal de Physique I
We study the equilibrium positions of a long prismatic particle of convex cross-section at a liquid/liquid interface in the gravity-free situation. We show in particular that : i) in a stable equilibrium position the contact angles at both three-phase lines obey the Young equation, ii) for any convex cross-section the…
Material Dynamics and PropertiesMicro and Nano RoboticsPickering emulsions and particle stabilization
Thomas J. Dolan、G.R. Longhurst、Eduardo Garcia-Otero1992-05-01Fusion Technology
We have designed a vacuum disengager system to remove tritium from the Flibe (Li2BeF4) molten salt coolant of the HYLIFE-II fusion reactor. There is a two-stage vacuum disengager in each of three intermediate heat exchanger (IHX) loops. Each stage consists of a vacuum chamber 4 m in diameter and 7 m tall. As 0.2 mm di…
Magnetic confinement fusion researchFusion materials and technologiesParticle accelerators and beam dynamics
Laurie D. Sparks、W. Robert Scheidt、John A. Shelnutt1992-05-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffects of .pi.-.pi. interactions on molecular structure and resonance Raman spectra of crystalline copper(II) octaethylporphyrinL. D. Sparks, W. Robert Scheidt, and J. A. ShelnuttCite this: Inorg. Chem. 1992, 31, 11, 2191–2196Publication Date (Print):May 1, 1992Publication…
Metal complexes synthesis and propertiesPorphyrin and Phthalocyanine ChemistryPhotochemistry and Electron Transfer Studies
D. M. Suszcynsky、Joseph E. Borovsky1992-05-01Physical Review A
The Sternglass theory [Sternglass, Phys. Rev. 108, 1 (1957)] for fast-ion-induced secondary-electron emission from metals has been modified to predict the secondary-electron yield from metals impacted by energetic (several keV to about 200 keV) electrons. The primary modification of the theory accounts for the contrib…
X-ray Spectroscopy and Fluorescence AnalysisElectron and X-Ray Spectroscopy TechniquesIon-surface interactions and analysis
R. Zanoni、G. Gusmano、Giampiero Montesperelli 等 4 位作者1992-05-01CORROSION
The authors investigated the corrosion behavior of the C71640 copper-nickel alloy in seawater by x-ray photoelectron spectroscopy. Results from different initial and service conditions are presented and discussed in terms of the chemical and quantitative composition of the samples on the basis of x-ray photoelectron s…
Corrosion Behavior and InhibitionAluminum Alloy Microstructure PropertiesElectron and X-Ray Spectroscopy Techniques
Dae Hoon Lee、G. A. Carnaby、Surinder Tandon1992-05-01Textile Research Journal
In this paper, we describe the method used to evaluate the theory of the compressional energy of the random fiber assembly, which was developed mathematically in Part I. We also introduce a mathematical derivation of the method for updating the orientation density function of fibers in a general fiber assembly. In ord…
Textile materials and evaluationsTree Root and Stability StudiesMaterial Properties and Processing
T. Katsuyama、Shin Satoh、Hiroyoshi Matsumura1992-05-01Journal of Applied Physics
Scattering loss characteristics of Ge-Se binary chalcogenide glass optical fibers are investigated. It is found that there is a strong correlation between the wavelength-independent scattering loss and the absorption caused by H2O impurities. Therefore, the amount of H2O impurity mainly determines the wavelength-indep…
Chalcogenide Semiconductor Thin FilmsPhotonic Crystal and Fiber OpticsPhase-change materials and chalcogenides
Helmut Ringsdorf、C. Urban、Wolfgang Knoll 等 4 位作者1992-05-01Die Makromolekulare Chemie
Abstract A series of liquid‐crystalline copolymers 1 with a chiral azobenzene moiety as photoreactive mesogenic unit was prepared. The polymers were fractionated and the mesophase behaviour of the high‐ and low‐molecular weight fractions was examined. The copolymers display smectic A and cholesteric phases. For the ch…
Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsPhotochromic and Fluorescence Chemistry
Keiko Kamioka、Russell A. Cormier、Thomas W. Lutton 等 4 位作者1992-05-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCharge-transfer emission in meso-linked zinc porphyrin-anthraquinone moleculesKeiko Kamioka, Russell A. Cormier, Thomas W. Lutton, and John S. ConnollyCite this: J. Am. Chem. Soc. 1992, 114, 11, 4414–4415Publication Date (Print):May 1, 1992Publication History Published onlin…
Porphyrin and Phthalocyanine ChemistryMolecular Junctions and NanostructuresPhotochemistry and Electron Transfer Studies
V. Anantha Narayanan、G. M. Bègun、David L. Stokes 等 5 位作者1992-05-01Journal of Raman Spectroscopy
Abstract Surface‐enhanced Raman scattering (SERS) spectra of Thiram (C 6 H 12 N 2 S 4 ) and Ferbam (C 9 H 18 N 3 S 6 Fe); and normal Raman scattering (NRS) spectra of Thiram and Metam‐Sodium (C 2 H 4 NNaS 2 ) were investigated. The SERS spectra of the two compounds and NRS spectrum of Metam‐Sodium were recorded for th…
Gold and Silver Nanoparticles Synthesis and ApplicationsSpectroscopy and Chemometric AnalysesPesticide Residue Analysis and Safety
А.А. Krasnovsky、Michael A. J. Rodgers、Maria G. Galpern 等 6 位作者1992-05-01Photochemistry and Photobiology
Using the direct measurement of the photosensitized luminescence of singlet molecular oxygen (1O2) the rate constants (kq) have been determined for 1O2 quenching by the monomeric molecules of the following phthalocyanines and naphthalocyanines in chloroform: tetra-(4-tert-butyl) phthalocyanine (I); octa-(3,6-butoxy) p…
Porphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research StudiesPhotochemistry and Electron Transfer Studies
Jin S. Yoo、Alak Bhattacharyya、C. A. RADLOWSKI 等 4 位作者1992-05-01Industrial & Engineering Chemistry Research
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDe-SOx catalyst: the role of iron in iron mixed solid solution spinels, MgO.cntdot.MgAl2-xFexO4Jin S. Yoo, Alak A. Bhattacharyya, Cecelia A. Radlowski, and John A. KarchCite this: Ind. Eng. Chem. Res. 1992, 31, 5, 1252–1258Publication Date (Print):May 1, 1992Publication Hist…
Aluminum Alloys Composites PropertiesMagnetic Properties and Synthesis of FerritesBauxite Residue and Utilization
P.A. Madden、Kyra O’Sullivan、G. Chiarotti1992-05-01Physical review. B, Condensed matter
The disorder of the ${\mathrm{Ag}}^{+}$ ions in the superionic conductor \ensuremath{\alpha}-AgI has been studied with use of computer simulations in which reorganizations of the ${\mathrm{I}}^{\mathrm{\ensuremath{-}}}$ lattice are inhibited. At high temperatures the ions are evenly distributed over the tetrahedral in…
Quasicrystal Structures and PropertiesInorganic Chemistry and MaterialsX-ray Diffraction in Crystallography
Jiro Kuniya、Hideya Anzai、Isao Masaoka1992-05-01CORROSION
Effect of MnS inclusions on the stress corrosion cracking (SCC) of low-alloy steel in 288°C oxygenated pure water was studied using slow strain rate tensile (SSRT) test. MnS inclusions dissolve and can act as starting points of SCC. At high amounts of dissolved oxygen (about 8 ppm), pitting corrosion and MnS inclusion…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsNon-Destructive Testing Techniques
Steve W. Martin、Debra Bain、Karim I. Budhwani 等 4 位作者1992-05-01Journal of the American Ceramic Society
29 Si MAS‐NMR measurements have been made on a series of lithium borosilicate glasses of general composition R Li 2 O.B 2 O 3 · K SiO 2 . At low alkali contents ( R < 1), the 29 Si resonance envelope is broadened and indicates a distribution of Si sites. As R increases above 1, the FWHM of the 29 Si resonance narro…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsAdvanced Condensed Matter Physics