Effect of fiber architecture and density on the ablation behavior of carbon/carbon composites modified by Zr–Ti–C

Three carbon/carbon (C/C) composites modified by Zr–Ti–C, with different fiber architecture in preforms and the same density, were prepared using chemical vapor infiltration and reactive melt infiltration methods. Two other samples with the same architecture in preforms and different density were al...

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Bibliographic Details
Published in:Carbon (New York) 2013-11, Vol.63, p.92-100
Main Authors: Zeng, Yi, Xiong, Xiang, Li, Guodong, Chen, Zhaoke, Sun, Wei, Wang, Dini, Wang, Yalei
Format: Article
Language:English
Subjects:
Ablation
Architecture
Carbon fiber reinforced plastics
Cross-disciplinary physics: materials science
rheology
Density
Exact sciences and technology
Fibers
Fullerenes and related materials
diamonds, graphite
Materials science
Physics
Preforms
Sealing
Specific materials
Zirconium
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Summary:Three carbon/carbon (C/C) composites modified by Zr–Ti–C, with different fiber architecture in preforms and the same density, were prepared using chemical vapor infiltration and reactive melt infiltration methods. Two other samples with the same architecture in preforms and different density were also fabricated by the same methods. Their ablation behaviors were examined by oxy-acetylene flame. The results showed that the samples with chopped web needled perform had better ablation resistance than that of the samples with needle-integrated and fine-weave pierced perform. In the models of ablation behaviors, the sealing time of pores and gaps on the ablated surfaces has been defined to indirectly estimate the ablation property. The analysis of models also indicated that high density of the composites and appropriate small diameter of bundles of carbon fibers led to the short sealing time and good ablation resistance of the C/C–carbide composites.
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2013.06.043