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 |
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页(从-至) | 1823-1829 |
页数 | 7 |
期刊 | Ceramics International |
卷 | 41 |
期 | 1 |
DOI | |
出版状态 | 已出版 - 2015 |