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Operational limits for reusable STS due to physical boundaries of C/SiC materials

Hald, H. (2003) Operational limits for reusable STS due to physical boundaries of C/SiC materials. Aerospace Science and Technology, 7 (7), Seiten 551-559.

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Kurzfassung

The paper concentrates on the surface interaction phenomena of both SiC-coated and uncoated C/C–SiC material of DLR's well known liquid siliconizing process (LSI) while exposing samples and structures to simulated and real space vehicle reentry conditions. During reentry, physical limits for these types of CMC materials are defined by oxidation resistance, passive–active transition conditions and erosion effects by various reasons like `mechanical' fluid–surface interaction. Special emphasis is given to the passive–active transition behaviour of SiC and the related `temperature jump effect' which will be explained by new theoretical research results. In addition a quantitative evaluation of the effect is given based on experimental test sample data. The considerations given in the paper are checked against literature data, observations and experience which have been achieved so far by manifold tests with samples in various facilities, experimental space reentry tests with samples on Russian FOTON capsules and a test with a hot structure during the EXPRESS mission (experiment CETEX). Finally, the understanding of the mechanisms may lead to a revised strategy for optimizing criterions for reentry trajectories of reusable space transportation systems.

Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen: LIDO-Berichtsjahr=2003,
Titel:Operational limits for reusable STS due to physical boundaries of C/SiC materials
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Hald, H.NICHT SPEZIFIZIERT
Datum:2003
Erschienen in:Aerospace Science and Technology
Referierte Publikation:Ja
In ISI Web of Science:Ja
Band:7
Seitenbereich:Seiten 551-559
Status:veröffentlicht
Stichwörter:C/SiC; Passive–active oxidation; Temperature jump; Erosion; TPS; Reentry technology
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W RP - Raumtransport
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W RP - Raumtransport
DLR - Teilgebiet (Projekt, Vorhaben):NICHT SPEZIFIZIERT
Standort: Stuttgart
Institute & Einrichtungen:Institut für Bauweisen- und Konstruktionsforschung
Hinterlegt von: elib DLR-Beauftragter
Hinterlegt am:16 Sep 2005
Letzte Änderung:14 Jan 2010 22:32

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