Effect of ZrB2 and SiC distributions on the ablation of modified carbon/carbon composites

Lei Liu, Hejun Li, Yudan Zhang, Xiaohong Shi, Qiangang Fu, Wei Feng, Tao Feng

科研成果: 期刊稿件文章同行评审

15 引用 (Scopus)

摘要

To understand the effect of introduced phases' distribution on the ablation of carbon/carbon (C/C) composites, C/C-ZrB2-SiC composites containing isolated (SZ-1) and coupled (SZ-2) ZrB2-SiC particles were prepared via controllable precursor infiltrations and pyrolysis, respectively. Ablation under oxyacetylene torch at both Z and XY directions showed that SZ-1 had better ablation resistance than SZ-2, while the surface temperature rose up to about 2400 °C. The ablated surface morphologies showed that a relative integrate layer of ablation products was formed on SZ-1, whereas the layer on SZ-2 was defective. It was believed that the dissimilar distributions of ZrB2- SiC particles in composites resulted in distinct structures of ablation products on the surfaces and consequently their different ablation behavior.

源语言英语
页(从-至)1823-1829
页数7
期刊Ceramics International
41
1
DOI
出版状态已出版 - 2015

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