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  • 1
    Electronic Resource
    Electronic Resource
    Entwicklung der Mikrostruktur in Alloy 800HT unter Hochtemperaturkriechbeanspruchung (1998)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 29 (1998), S. 30-38 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Evolution of the Microstructure in Alloy 800HT under High Temperature Creep LoadIn the present work the microstructural evolution under isothermal and high temperature creep conditions is studied for the iron-base-alloy Incoloy Alloy 800HT (X10 NiCrAlTi 32 20 HT) at temperatures of 800° and 900° and stresses of 70 MPa and 45 MPa resp. To describe the microstructure changes under creep stress loading and constant test temperature the dislocation density, particle size and mean planer interparticle spacing where investigated using transmission electron microscopy. The results of the dislocation density and particle morphology measurements are compared and discussed in the context of creep deformation, heat treatment conditions and creep behaviour.
    Notes: In der vorliegenden Arbeit wird die Entwicklung der Mikrostruktur, gekennzeichnet durch die Merkmale Versetzungsdichte, Partikelvolumenanteil und -abstand bei Hochtemperaturkriechbeanspruchung, der Eisenbasislegierung Incoloy Alloy 800HT (X10 NiCrAlTi 32 20 HT) untersucht. Zur Beschreibung der Evolution der Mikrostruktur in Abhängigkeit von Temperatur und Kriechverformung werden isotherme Wärmebehandlungen und Kriechexperimente bei 800° / 800° und 70MPa sowie 900° / 900° und 45MPa durchgeführt. Die Untersuchung der sich durch die Beanspruchungen einstellenden Gefügeänderugen erfolgt mit Methoden der Elektronenmikroskopie, vornehmlich im Transmissionselektronenmikroskop. Eine detaillierte Auswertung der sich ergebenden Versetzungsdichten und Größen der ausgeschiedenen Karbide wird mit den Zeitstandkenngrößen in Beziehung gesetzt, analysiert und diskutiert.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19980290109
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  • 2
    Electronic Resource
    Electronic Resource
    A Fast and Reliable Method for the Determination of Anionic Impurities and Neutralization Agents in Electrodipcoats Using Capillary Zone Electrophoresis with Conductivity Detection (1999)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 22 (1999), S. 297-299 
    Details
    ISSN: 0935-6304
    Keywords: Capillary electrophoresis ; conductivity detection ; inorganic anions ; organic acids ; electrodipcoats ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: ---No abstract
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    1,1-Hydroborierung von Alkinen mit 6-Aza-nido-decaboranen (1995)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 128 (1995), S. 947-951 
    Details
    ISSN: 0009-2940
    Keywords: 6-Aza-nido-decaborane ; 9-(1-Alkenyl)-6-phenyl-6-aza-nido-decaborane ; 1,1-Hydroboration of alkynes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1,1-Hydroboration of Alkynes with 6-Aza-nido-decaboranes[1]Alkynes AC≡CR′ (R′ = Me, Bu, tBu, SiMe3), that contain a mobile group A, like H or SiMe3, undergo hydroboration by 6-aza-nido-decaboranes RNB9H11 (1a-c, R = H, Ph, PhCH2) and 1,2-migration of the group A, to give the corresponding 9-(1-alkenyl)-6-aza-nido-decaboranes RNB9H10(CH=CR′A) (2a-h). Ethenes AHC=CH2 (A = SiMe3, SnBu3) are hydroborated by 1a, b as well to form products of the type RNB9H10(CH2CH2A) (3a-c). The alkyne Me3SiC=CH undergoes a hydroboration with 1b twice; the formation of (PhNB9H10)2CHCH2SiMe3 (4) proceeds by a 1,1- and a 1,2-hydroboration step, apparently. The crystal structure analysis of (PhCH2)NB9H10[CH=CMe(SiMe3)] (2e; space group Pl) reveals a (Z configuration of the ethene moiety.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19951280916
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  • 4
    Electronic Resource
    Electronic Resource
    Separation of inorganic and organic anions by capillary zone electrophoresis with simultaneous indirect UV and conductivity detection (1998)
    Weinheim : Wiley-Blackwell
    Electrophoresis 19 (1998), S. 2459-2464 
    Details
    ISSN: 0173-0835
    Keywords: Capillary electrophoresis ; Conductivity detection ; Indirect UV detection ; Inorganic anions ; Carboxylic acids ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: The analysis of low-molecular-mass anionic compounds using capillary zone electrophoresis (CZE) with simultaneous direct conductivity and indirect UV detection is described. A number of carrier electrolyte compositions has been investigated with respect to the crucial parameters for their compatibility with both detection principles discussed in this paper (UV absorptivity and electrophoretic mobility of the buffer coion). Additionally, parameters including pH and buffer concentration affecting both peak symmetry and signal-to-noise ratio obtained for the analytes of interest had to be optimized. Best results could be achieved with a carrier electrolyte consisting of 4-aminobenzoic acid, bis(2-hydroxyethyl)imino-tris(hydroxymethyl)aminomethane (BIS-Tris) and a pH of 7.0 adjusted with LiOH. This running buffer was used for the analysis of low-molecular-mass anionic compounds in a sample of white wine.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elps.1150191418
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