Ablation Properties of C/C-ZrC-SiC Composites by the Precursor Infiltration Pyrolysis


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The ablation properties of C/C-ZrC-SiC composites prepared by precursor infiltration and pyrolysis processes were studied by the H2-O2 ablation method. The results indicate that the ablation rate of C/C-ZrC-SiC composites decreases with increasing density of the composites. The linear ablation rate and mass ablation rate of the C/C-ZrC-SiC composites (ρ=1.69g·cm-3) were 0.00211mm·s-1 and 0.5179mg·s-1, only 20.6% and 31.6% of those of C/C composites (ρ=1.78g·cm-3) respectively. The introduction of ZrC-SiC into the matrix greatly enhanced the anti-oxidative and ablation property of the C/C composite. The ablation mechanisms of the C/C-ZrC-SiC composites were supposed to be the synergistic effects of thermo-chemistry ablation (oxidation and sublimation) and mechanical erosion.



Advanced Materials Research (Volumes 239-242)

Edited by:

Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He




M. J. Gao et al., "Ablation Properties of C/C-ZrC-SiC Composites by the Precursor Infiltration Pyrolysis", Advanced Materials Research, Vols. 239-242, pp. 1076-1081, 2011

Online since:

May 2011




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