http://www.cnr.it/ontology/cnr/individuo/prodotto/ID136818
Catalycity of silica surfaces at high temperature: Comparison between Experimental Recombination Coefficients and Molecular Dynamics Simulation. (Contributo in volume (capitolo o saggio))
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- Label
- Catalycity of silica surfaces at high temperature: Comparison between Experimental Recombination Coefficients and Molecular Dynamics Simulation. (Contributo in volume (capitolo o saggio)) (literal)
- Anno
- 2003-01-01T00:00:00+01:00 (literal)
- Alternative label
M. Balat-Pichelin, J. M. Badie, M.Cacciatore, M.Rutigliano (2003)
Catalycity of silica surfaces at high temperature: Comparison between Experimental Recombination Coefficients and Molecular Dynamics Simulation.
ESA Publication Division, Noordwijk (Paesi Bassi) ESTEC, Noordwijk (Paesi Bassi) in Hot Structure and Thermal Protection System for Space Vehicles, 2003
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- M. Balat-Pichelin, J. M. Badie, M.Cacciatore, M.Rutigliano (literal)
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- Noordwijk, The Netherlands (literal)
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- Hot Structure and Thermal Protection System for Space Vehicles (literal)
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- IMP-CNRS
IMIP-CNR (literal)
- Titolo
- Catalycity of silica surfaces at high temperature: Comparison between Experimental Recombination Coefficients and Molecular Dynamics Simulation. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#inCollana
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- Abstract
- A joint experimental and theoretical investigation on the
molecular oxygen formation after atom recombination
on silica surfaces has been performed that can be
relevant for the thermal protection system of shuttles reentering
in terrestrial atmosphere.
The experimental method we have developed for the
measurement of the atomic oxygen recombination
coefficient ?? at high temperature (900 - 2000 K) using
a direct method on surfaces of silica (?-cristobalite and
quartz) and alumina (sintered and native oxide on AlN
substrate) is presented.
Then the experimental results are compared with
semiclassical Molecular Dynamics calculations
performed on the same catalytic system aiming at
determining, at a molecular level, the basic features of
the surface catalytic activity. A substantial quantitative
agreement between the experimental and the theoretical
recombination coefficient on ?-cristobalite has been
found in the surface temperature range explored in the
experiments. (literal)
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