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  • 1
    Electronic Resource
    Electronic Resource
    Fluorine Containing High-Silica Glasses for Speciality Optical Fibers (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 39-40 (Apr. 2008), p. 265-268 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: We investigated the codoping of different high-silica glasses (GeO2 – SiO2, B2O3 – SiO2)with fluorine with respect to the use of such glasses in actual optical fiber devices (fiber Bragg gratings,fiber lasers and amplifiers, optical filters, etc). It could be shown that there is a strong interactionbetween fluorine and the other dopants germanium and boron during gas phase deposition ofthe glassy layers. The doping concentration in dependence on the experimental conditions (gas concentrations,flow velocity, temperature) can be understood and quantitatively described on the basisof the chemical thermodynamics (equilibrium chemistry) of the systems. This makes possible thedefined preparation of complex fiber structures in terms of refractive index profiles and multielementdistributions
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.39-40.265.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    Optical properties of sputtered Fe"2O"3 films
    Amsterdam : Elsevier
    Thin Solid Films 60 (1979), S. 49-53 
    Details
    ISSN: 0040-6090
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6090(79)90345-6
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Mechanische Bearbeitung sprödharter Körper und Grenzflächenwechselwirkungen (1992)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 23 (1992), S. 395-400 
    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: The effect of surface adsorption on the machining of brittle materialsIn the present paper is shown the importance of interfacial phenomena in the machining (grinding, cutting) of brittle materials. Especially influenced are the rate of the abrasion, the cutting forces and the roughness of the surface.
    Notes: Die vorliegende Arbeit gibt einen Überblick über die Bedeutung von Grenzflächenvorgängen beim Zerspanen (Schleifen, Trenn-schleifen) sprödharter Materialien. Dabei bestehen Einflüsse auf die Abtragrate, die wirkenden Kräfte und die Oberflächenrauhigkeit.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19920231111
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  • 4
    Electronic Resource
    Electronic Resource
    Über die Chemie der Glasrußbildung durch Oxydation von gasförmigem SiCl4 und GeCl4 bei hohen Temperaturen (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 508 (1984), S. 176-186 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: About the Chemistry of the Formation of Glass-soot by Oxidation of Gaseous SiCl4 and GeCl4 at High TemperaturesBy the oxidation of gaseous mixtures of SiCl4 and GeCl4 at temperatures of 2023 K finely grained glass-soot is formed. For the preparation of compounds according to the composition Si1-xGexO2 (0 ≤ x ≤ 1) the existence of a solid continuous phase was proved by infrared spectroscopy and electron microscopy. The experimentally during the process of oxidation determined degrees of conversion are compared with thermodynamical calculations, considering different kinds of formation of the solid phase.
    Notes: Die Oxydation von gasförmigen Gemischen von SiCl4 und GeCl4 bei Temperaturen von 2023 K führt zu feinteiligem Glasruß. Für die Mischungsreihe Si1-xGexO2 (0 ≤ x ≤ 1) wird die Existenz einer festen Mischphase mit Hilfe von ultrarotspektroskopischen und elektronenmikroskopischen Untersuchungen nachgewiesen. Die bei der Oxydation ermittelten Umsetzungsgrade werden unter Beachtung verschiedener Bildungsmöglichkeiten der festen Phase mit thermodynamischen Abschätzungen verglichen.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845080125
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