Microstructure and ablation mechanism of C/C-SiC composites
文献类型：期刊论文
| 作者 | Cui, Yuanyuan1; Li, Aijun1; Li, Bo1; Ma, Xiao1; Bai, Ruicheng1; Zhang, Weigang2; Ren, Musu1; Sun, Jinliang1 |
| 刊名 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| 出版日期 | 2014-02-01 |
| 卷号 | 34期号:2页码:171-177 |
| 关键词 | Ceramic matrix composites Microstructure Ablation mechanism |
| ISSN号 | 0955-2219 |
| 其他题名 | J. Eur. Ceram. Soc. |
| 中文摘要 | C/C-SiC composites were prepared by molten infiltration of silicon powders, using porous C/C composites as frameworks. The porosities of the C/C-SiC composites were about 0.89-2.8 vol%, which is denser than traditional C/C composites. The ablation properties were tested using an oxyacetylene torch. Three annular regions were present on the ablation surface. With increasing pyrocarbon fraction, a white ceramic oxide layer formed from the boundary to the center of the surface. The ablation experimental results also showed that the linear and mass ablation rates of the composites decreased with increasing carbon fraction. Linear SiO2 whiskers of diameter 800 am and length approximately 3 mu m were formed near the boundaries of the ablation surfaces of the C/C-SiC composites produced with low-porosity C/C frameworks. The ablation mechanism of the C/C-SiC composites is discussed, based on a heterogeneous ablation reaction model and a supersaturation assumption. (C) 2013 Elsevier Ltd. All rights reserved. |
| 英文摘要 | C/C-SiC composites were prepared by molten infiltration of silicon powders, using porous C/C composites as frameworks. The porosities of the C/C-SiC composites were about 0.89-2.8 vol%, which is denser than traditional C/C composites. The ablation properties were tested using an oxyacetylene torch. Three annular regions were present on the ablation surface. With increasing pyrocarbon fraction, a white ceramic oxide layer formed from the boundary to the center of the surface. The ablation experimental results also showed that the linear and mass ablation rates of the composites decreased with increasing carbon fraction. Linear SiO2 whiskers of diameter 800 am and length approximately 3 mu m were formed near the boundaries of the ablation surfaces of the C/C-SiC composites produced with low-porosity C/C frameworks. The ablation mechanism of the C/C-SiC composites is discussed, based on a heterogeneous ablation reaction model and a supersaturation assumption. (C) 2013 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Ceramics |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | CARBON/CARBON COMPOSITES ; C/SIC COMPOSITES ; SILICON-CARBIDE ; MORPHOLOGY ; OXIDATION ; NANOCABLES ; BEHAVIORS ; GROWTH ; FILMS ; TORCH |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000327567800002 |
| 公开日期 | 2014-05-06 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/8140]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Shanghai Univ, Res Ctr Composite Mat, Shanghai 200072, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Yuanyuan,Li, Aijun,Li, Bo,et al. Microstructure and ablation mechanism of C/C-SiC composites[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2014,34(2):171-177. |
| APA | Cui, Yuanyuan.,Li, Aijun.,Li, Bo.,Ma, Xiao.,Bai, Ruicheng.,...&Sun, Jinliang.(2014).Microstructure and ablation mechanism of C/C-SiC composites.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,34(2),171-177. |
| MLA | Cui, Yuanyuan,et al."Microstructure and ablation mechanism of C/C-SiC composites".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 34.2(2014):171-177. |
入库方式： OAI收割
来源：过程工程研究所
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