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  • Articles: DFG German National Licenses  (3)
  • 1985-1989  (2)
  • 1980-1984  (1)
  • 1965-1969
  • 1945-1949
  • 1930-1934
  • 1985  (2)
  • 1980  (1)
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  • Articles: DFG German National Licenses  (3)
Material
Years
  • 1985-1989  (2)
  • 1980-1984  (1)
  • 1965-1969
  • 1945-1949
  • 1930-1934
Year
  • 1
    Electronic Resource
    Electronic Resource
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 41 (1985), S. 912-915 
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 20 (1985), S. 3141-3149 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The microstructure of melt-spun Al-17.3 at% Cu eutectic alloy ribbons with different thicknesses have been revealed by means of electron microscopy and X-ray techniques. Thick ribbons (〉20μm) consist of finely-dispersed α-Al and Al2Cu equilibrium phases showing lamellar or irregular morphology. In thin ribbons a considerable fraction of supersaturated α-Al solid solution and the metastable Al4Cu9 phase have been detected. The experimental facts on the identity of the phases, their morphology and particle size for given processing conditions are discussed within the framework of a heat flow model including the solidification process as well as post-solidification transformations. The microstructural features are considered to be determined by local and time variations of the ribbon-wheel contact.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Acta Polymerica 31 (1980), S. 767-770 
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: TSD-spectra are measured after thermal and optical excitation at several values of polarizing field strength and intensity of light. An α-relaxation region is not evident by optical excitation. The β-relaxation region is observable, but it is superimposed by another relaxation region for greater polarizing field strength. By optical excitation further maxima are observed at temperatures higher than the temperature of the β-relaxation. They are interpreted by a trap mechanism. An identical space charge maximum exists for both the excitation processes.
    Notes: TSD-Spektren wurden nach thermischer und optischer Anregung bei verschiedenen Werten von Polarisationsfeldstärke und Quantenflußdichte gemessen und miteinander verglichen. Bei optischer Anregung ist keine α-Relaxation nachweisbar, das β-Relaxationsgebiet dagegen tritt auf, wird aber insbesondere bei höheren Polarisationsfeldstärken von einem weiteren Relaxationsgebiet teilweise überlagert. An das β-Relaxationsgebiet schließen bei optischer Anregung zu höheren Temperaturen hin Maxima an, die durch Haftstellenmechanismen interpretiert werden. Bei beiden Anregungsarten existiert ein identisches Raumladungsmaximum.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
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