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  • 1
    Electronic Resource
    Electronic Resource
    In Situ Measurement of Stress during Deposition of Boron Nitride Films (2000)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 347-349 (May 2000), p. 156-160 
    Details
    ISSN: 1662-9752
    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
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/05/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.347-349.156.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    On the Validity of the Evidence for Sub-Units of High Molecular Weight Ribonucleic Acids (1962)
    [s.l.] : Nature Publishing Group
    Nature 194 (1962), S. 444-446 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ALTHOUGH it is generally agreed that ribosomal /JL ribonucleic acid (UNA) when first isolated consists of two components having sedimentation constants of approximately 16 and 23 S, several investigators have reported that these high-molecular-weight components represent aggregates of low molecular ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/194444a0
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  • 3
    Electronic Resource
    Electronic Resource
    Growth of low-stress cubic boron nitride films by simultaneous medium-energy ion implantation (2002)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 80 (2002), S. 55-57 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: It is demonstrated that the intrinsic stress in cubic boron nitride films can be significantly relaxed during growth by simultaneous medium-energy ion implantation. The stress in the growing film has been studied in situ using cantilever curvature measurements and has been reduced to below 2 GPa by simultaneous Ar+ or N+ ion implantation with an energy of 70 and 35 keV, respectively. The resulting cubic boron nitride films show an increased long-term stability. The results reveal that the stress in cBN is not reduced due to segregation of boron at grain boundaries. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1430268
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  • 4
    Electronic Resource
    Electronic Resource
    The nitrogen transport in austenitic stainless steel at moderate temperatures (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 76 (2000), S. 2194-2196 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A model for the transport of nitrogen in austenitic stainless steel at temperatures around 400 °C is presented and discussed. The model considers the diffusion of nitrogen under the influence of trapping and detrapping at trap sites formed by local chromium. Nitrogen depth profiles simulated on the basis of the model with diffusion and detrapping activation energies of 1.1 and 1.45 eV, respectively, are in good agreement with experimental nitrogen profiles. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.126294
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  • 5
    Electronic Resource
    Electronic Resource
    Mechanism of diffusional transport during ion nitriding of aluminum (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 76 (2000), S. 1404-1406 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The mechanism of diffusional transport during low-energy ion nitriding of aluminum has been investigated using marker and isotope sequence techniques in connection with ion-beam analysis. For an ion energy of 1 keV and a temperature of 400 °C, it is shown that the nitride grows at the surface with aluminum being supplied by diffusion from the underlying bulk. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.126070
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  • 6
    Electronic Resource
    Electronic Resource
    Neue Luminophore mit UV-Emission (1962)
    Springer
    Naturwissenschaften 49 (1962), S. 181-181 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00640813
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  • 7
    Electronic Resource
    Electronic Resource
    Die Adsorption des Formaldehydes durch Tierkohle (1921)
    Springer
    Colloid & polymer science 28 (1921), S. 127-132 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Zusammenfassung 1. Formaldehyd wird durch Tierkohle sowohl in saurer als auch in neutraler Lösung in bedeutendem Maße adsorbierl. 2. Die Adsorption sowohl in neutralisierter als auch saurer Lösung folgt den Adsorptionsgesetzen, d. h. die Adsorption ist abhängig von der Konzentration. 3. Die Adsorption des Formaldehydes durch die Tierkohle in saurer Lösung ist ferner in weitgehenstem Maße von dem Volum abhängig. Aus großem Volum wird erheblich mehr, als aus kleinem Volum bei gleicher Konzentration adsorbiert. 4. In neutraler Lösung wird die Adsorption des Formaldehydes unabhängig von dem Volum und ist lediglich abhängig von der dargebotenen absoluten Menge des Formaldehydes bezw. der Konzentration. 5. Die Adsorption in neutraler Lösung ist unabhängig von der Zeit und tritt das Gleichgewicht nach kurzer Einwirkungsdauer ein. Die Adsorption aus saurer Lösung ist abhängig von der Zeit und tritt selbst nach 8 tägiger Einwirkung kein Gleichgewicht ein.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01427881
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  • 8
    Electronic Resource
    Electronic Resource
    Amorphization of Fe/Al: bulk and thin-film effects (2000)
    Springer
    Applied physics 71 (2000), S. 47-54 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 68.55.-a; 61.82.Bg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. The amorphous non-equilibrium state of the system Fe/Al is studied in bulk and thin-film systems. For bulk samples prepared by ion-beam mixing of laser-deposited multilayers, a bcc solid solution is found for alloys with up to 70 at. % Al. Around 75 at. % Al a Fe2Al5-like crystalline phase is found. An amorphous state with Fe2Al5-like short-range order is found for 80 at. % Al. In thin films, for example the amorphous Al-rich transition layer of a laser-deposited Fe/Al multilayer, the amorphous state can exist for up to 30 at. % Fe due to the high interfacial energy. By ion-beam mixing at low temperatures (about 140 K) an oversaturation with 40 at. % Fe can be achieved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050024
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  • 9
    Electronic Resource
    Electronic Resource
    Preparation of granular Co/Cu by ion-beam mixing of laser-deposited multilayers (2000)
    Springer
    Applied physics 71 (2000), S. 105-107 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 68.55.-a; 61.82.Bg; 81.40.Rs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. Co/Cu multilayers were prepared by crossed-beam pulsed laser deposition and characterized by high-angle X-ray diffraction, as well as specular and non-specular reflection. Ion-beam mixing of the multilayers with 150 keV Cu+ ions and a fluence of up to 5×1015 cm-2 leads to the formation of a granular system of superparamagnetic Co clusters in Cu, as shown by magnetic measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050035
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  • 10
    Electronic Resource
    Electronic Resource
    Die Gerinnungserscheinungen in Gelatine-Chlornatriumlösungen (1921)
    Springer
    Colloid & polymer science 28 (1921), S. 281-290 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Zusammenfassung 1. Es wurde der Gerinnungswert verdünnter, mit Chlornatrium gesättigter Gelatinelösungen durch Säuren ermittelt. 2. Der Gerinnungswert steigt mit dem Dissoziationsgrad der Säure und ist demnach bei anorganischen Säuren größer, wie bei organischen. 3. Das Maximum der Gerinnung der daran beteiligten Trockensubstanz der Gelatinelösung durch irgendeine Säure liegt bei einer ganz bestimmten Konzentration. 4. Neben der Gerinnung finden Adsorptionserscheinungen zwischen dem geronnenen Teil und der Säure in Verbindung mit den nicht der Gerinnung fähigen Anteilen statt. 5. Die Erscheinungen wurden nach der Mizellar-Hypothese von Nägeli's erklärt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01464428
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