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  • Polymer and Materials Science  (2)
  • 61.40.−a  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Electric field effects on persistent spectral holes: Perylene in the polar polymer polyvinylbutyral (1990)
    Springer
    Applied physics 51 (1990), S. 336-341 
    Details
    ISSN: 1432-0649
    Keywords: 78.50.−w ; 61.40.−a
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We investigated the effects of an electric field on a spectral hole burned in the inhomogeneously broadened S 0–S 1 transition of perylene in different samples of the polar polymer polyvinylbutyral (PVB) and in cellulose nitrate. The spectral hole is broadened and reduced in depth by the electric field. It was checked experimentally for perylene in PVB that the hole area remains constant when an electric field is applied. We determined the effective matrix-induced electric dipole moment differences δμ* for perylene in different PVB samples and in cellulose nitrate. Within experimental accuracy the value of δμ* is approximately independent of the composition of PVB and its water content. For perylene in cellulose nitrate the value of δμ* is larger by a factor of 1.5 than in PVB. The results are discussed on the basis of a simple model for the electric field effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00348970
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  • 2
    Electronic Resource
    Electronic Resource
    Zeitstandverhalten einiger fortschrittlicher Schaufelwerkstoffe für IndustriegasturbinenAuszug aus einer beim Fachbereich Maschinenbau der Technischen Hochschule Darmstadt einzureichenden Dr.-Ing. Diss. von M. Maier (1994)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 25 (1994), S. 273-283 
    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: Creep rupture behaviour of some advanced materials for industrial gas turbinesThe creep rupture behaviour of three DS-alloys, an ODS-alloy and a PM-alloy for gas turbine blades is investigated up to 20 000 h test duration. Further, the elastoplastic behaviour is determined in tensile tests and the contraction behaviour in long-term annealing tests. On this basis, a characterisation of the strength and partly a modelling of the deformation behaviour of the alloys is given.
    Notes: Das Zeitstandverhalten von drei Ds-Werkstoffen, einem ODS-Werkstoff und einer PM-Legierung für Gasturbinenschaufeln wird in Versuchen bis zu 20 000 h Dauer ermittelt. Ferner wird das elasto-plastische Kurzzeitverhalten in Warmzugversuchen und das Kontraktionsverhalten in langzeitigen Glühversuchen bestimmt. Auf dieser Grundlage erfolgt eine Beschreibung des Festigkeits-und teilweise auch des Verformungsverhaltens der untersuchten Werkstoffe im Hochtemperaturbereich.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19940250704
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Secondary ion mass spectrometry round-robin study of relative sensitivity factors in gallium arsenide (1998)
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 26 (1998), S. 144-154 
    Details
    ISSN: 0142-2421
    Keywords: SIMS ; GaAs ; round-robin ; sensitivity factor ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Round-robin studies on relative sensitivity factors (RSFs) in secondary ion mass spectrometry (SIMS) were conducted using bulk GaAs samples uniformly doped with various impurity elements. A total of 31 laboratories participated in two round-robins. More than 30 sets of relative ion intensities were obtained for B, Si, Cr, Mn, Fe, Cu, Zn, In and Te in GaAs. The RSFs for both positive and negative ions were derived for several types of SIMS instruments. The effect of primary ion incident angle was examined using quadrupole-based instruments and found to be the determining factor of the instrumental dependence of RSF. © 1998 John Wiley & Sons, Ltd.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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