Degradation of CVD-SiC coated PIP-C/SiC composites exposed to the hot firing test based on MMH/N2O4 bipropellants

Ablation property of CVD-SiC coated PIP-C/SiC composites was investigated by using a hot-firing test in a liquid propellant rocket motor. The effect of the combustion temperature was studied; then ablation mechanisms of coated composites were discussed. The degradation of PIP-C/SiC composites was de...

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Bibliographic Details
Published inCeramics international Vol. 40; no. 7; pp. 10303 - 10308
Main Authors Yang, Xiang, Lu-ming, Huang, Zhao-hui, Chen
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.08.2014
Subjects
Ceramic matrix composites
High temperature corrosion
Oxidation
SEM
XRD
Ceramic matrix composites
Oxidation
SEM
XRD
High temperature corrosion
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Summary:Ablation property of CVD-SiC coated PIP-C/SiC composites was investigated by using a hot-firing test in a liquid propellant rocket motor. The effect of the combustion temperature was studied; then ablation mechanisms of coated composites were discussed. The degradation of PIP-C/SiC composites was determined by analyzing surface variations. Two different ablation modes of C/SiC composites were discussed. The coupling effects (thermal–mechanical denudation and thermal–chemical erosion) worsened the degradation of the coated PIP-C/SiC composites. CVD-SiC coating provided better protection for the composites under the MMH/N2O4 bipropellants tests.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2014.03.001