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  • 1
    Electronic Resource
    Electronic Resource
    Hydrogen permeability of amorphous and recrystallized iron alloys (2000)
    Springer
    Technical physics 45 (2000), S. 377-379 
    Details
    ISSN: 1090-6525
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The hydrogen permeability of amorphous and recrystallized Fe alloys is investigated. It is found that the surface layers of both samples are enriched with metalloids, which interfere with the penetration of hydrogen from the molecular and atomic phases. The kinetics of curves of flow transition to a steady state upon ion irradiation in an amorphous alloy points to processes of reversible capture. The penetrating flow demonstrates Arrhenius dependence on temperature in the case of recrystallized samples and nonmonotonic dependence on temperature in the case of amorphous samples. A model of hydrogen penetration is suggested, which includes the reemission and diffusion processes; and estimates are obtained of the energy of activation of thermodesorption and diffusion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.1259639
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Kinetics of Sorption and Release of Hydrogen by Nanoporous Carbon (2000)
    Springer
    Materials science 36 (2000), S. 499-505 
    Details
    ISSN: 1573-885X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract We investigate the process of hydrogen sorption by nanoporous carbon at temperatures of 570–970 K by using the method of thermodesorption spectrometry. Thermodesorption spectra consist of several phases caused by chemisorption in several independent states on the surface of nanoporous carbon. Each of the states is characterized by the activation energy and pre-exponential factors of desorption rate constants. We obtain estimates for the efficient activation energy and heat of sorption.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1011397618417
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    Paper (German National Licenses)
    Fulltext
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