Connexion utilisateur 0 Panier
Accueil Livres eBooks Revues spécialisées Références et comptes rendus Auteurs, éditeurs, examinateurs Index A-Z des produits
Progress in Plasma Processing of Materials, 1997

ISBN Imprimer: 1-56700-093-2

A SOLAR-PLASMA PROCESS FOR EVALUATION OF CATALYTIC RECOMBINATION FLUXES ON CERAMIC MATERIALS AT HIGH TEMPERATURE

Résumé

During atmospheric reentry, the wall temperature of hypersonic vehicles increases not only due to convection and diffusion fluxes in the boundary layer but also as the result of the catalytic atom recombination of the dissociated air plasma. The partial simulation of these conditions is realized on the MESOX test bench which includes a solar radiation concentrator and a microwave generator. First, theoretical and experimental results for the determination of the active to passive transition in the oxidation of ceramic materials under standard and microwave-excited air are presented. Second, the catalytic activity of these materials under different pressures (200-2000 Pa) and temperatures (1000-1800 K) is evaluated, using a thermal approach. The experimental results lead to the determination of the atomic oxygen recombination flux and the evaluation of the physico-chemical behaviour of ceramics under atmospheric reentry conditions.
Accueil Portail numérique Begell Bibliothèque numérique Begell Revues spécialisées Livres eBooks Références et comptes rendus Auteurs, éditeurs, examinateurs Index A-Z des produits Prix et politiques d'abonnement A propos de Begell House Contactez-nous Language English 中文 Русский 日本語 Português Deutsch Français Español