| Ablation characteristics of 2D-C/C composites and their graphitized products | |
| Tang Su-fang; Wang Dao-ling; Deng Jing-yi; Du Hai-feng; Liu Wen-chuan; Yang Ke | |
| Corresponding Author | Deng Jing-yi(jydeng@imr.ac.cn) |
| 2007-03-01 | |
| Source Publication | NEW CARBON MATERIALS
 |
| ISSN | 1007-8827 |
| Volume | 22Issue:1Pages:23-27 |
| Abstract | 2D-C/C composites were prepared by pyrocarbon deposition at 1000-1100 degrees C using liquefied petroleum gas as the carbon source and a 2D carbon fiber weave as substrate. Graphitized samples were obtained by heat treatment at 2 800 degrees C for 10 h. An engine torch test was used to evaluate the ablation properties of the two kinds of composites. A comparison of the pore size distribution, the cohesion strength between matrix and fiber, and the thermal conductivity of the two composites was used to explain their ablation characteristics and mechanism. Results show that for the 2D-C/C composites, the ablation mechanism is controlled by a thermo-chemical reaction (oxidation), the ablated surface is even and the ablation rate is 0.033 mm/s because of its low porosity, large cohesion strength and low out-of-plane thermal conductivity. For the graphitized 2D-C/C composites, the ablation mechanism is dominated by both oxidation and mechanical wearing with a few macroscopic pits on the ablated surface and the ablation rate is 0.046 mm/s, which is caused by their large porosity and low cohesion strength. |
| Keyword | C/C composites graphitization ablation |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000245636100005 |
| Publisher | SCIENCE CHINA PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/91581 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Deng Jing-yi |
| Affiliation | Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Tang Su-fang,Wang Dao-ling,Deng Jing-yi,et al. Ablation characteristics of 2D-C/C composites and their graphitized products[J]. NEW CARBON MATERIALS,2007,22(1):23-27. |
| APA | Tang Su-fang,Wang Dao-ling,Deng Jing-yi,Du Hai-feng,Liu Wen-chuan,&Yang Ke.(2007).Ablation characteristics of 2D-C/C composites and their graphitized products.NEW CARBON MATERIALS,22(1),23-27. |
| MLA | Tang Su-fang,et al."Ablation characteristics of 2D-C/C composites and their graphitized products".NEW CARBON MATERIALS 22.1(2007):23-27. |
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