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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), pp. 551-559.

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Abstract

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.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2003,
Title:Operational limits for reusable STS due to physical boundaries of C/SiC materials
Authors:
AuthorsInstitution or Email of Authors
Hald, H.UNSPECIFIED
Date:2003
Journal or Publication Title:Aerospace Science and Technology
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:7
Page Range:pp. 551-559
Status:Published
Keywords:C/SiC; Passive–active oxidation; Temperature jump; Erosion; TPS; Reentry technology
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):UNSPECIFIED
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 22:32

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