Fabrication of Large Aerogel-Like Carbon/Carbon Composites with Excellent Load-Bearing Capacity and Thermal-Insulating Performance at 1800 degrees C
文献类型：期刊论文
| 作者 | Li, Jian3; Guo, Penglei2,3; Hu, Chenglong3; Pang, Shengyang3; Ma, Jian2,3; Zhao, Rida2,3; Tang, Sufang3; Cheng, Hui-Ming1 |
| 刊名 | ACS NANO
 |
| 出版日期 | 2022-04-26 |
| 卷号 | 16期号:4页码:6565-6577 |
| ISSN号 | 1936-0851 |
| 关键词 | lightweight carbon/carbon composites aerogel fiber-reinforced thermal insulation mechanical properties |
| DOI | 10.1021/acsnano.2c00943 |
| 通讯作者 | Tang, Sufang(sftang@imr.ac.cn) ; Cheng, Hui-Ming(cheng@imr.ac.cn) |
| 英文摘要 | Carbon aerogels (CAs) are attractive candidates for the thermal protection of aerospace vehicles due to their excellent thermostability and thermal insulation. However, the brittleness and low mechanical strength severely limits their practical applications, and no significant breakthroughs in large CAs with a high strength have been made. We report a high-pressure-assisted polymerization method combined with ambient pressure drying to fabricate large, strong, crack-free carbon/carbon (C/C) composites with an excellent load-bearing capacity, thermal stability, and thermal insulation. The composites are comprised of an aerogel-like carbon matrix and a low carbon crystallinity fiber reinforcement, featuring overlapping nanoparticles, macro-mesopores, large particle contact necks, and strong fiber/matrix interfacial bonding. The resulting C/C composites with a medium density of 0.6 g cm(-3) have a very high compressive strength (80 MPa), in-plane shear strength (20 MPa), and specific strength (133 MPa g(-1) cm(3)). Moreover, the C/C composites of 7.5-12.0 mm in thickness exposed to an oxyacetylene flame at 1800 degrees C for 900 s display very low back-side temperatures of 778-685 degrees C and even better mechanical properties after the heating. This performance makes the composites ideal for the ultrahigh temperature thermal protection of aerospace vehicles where both excellent thermal-insulating and load-bearing capacities are required. |
| 资助项目 | National Natural Science Foundations of China[U20A20242] ; National Natural Science Foundations of China[52022101] ; National Natural Science Foundations of China[52188101] ; National Natural Science Foundations of China[51902315] ; Research Fund of Youth Innovation Promotion Association of CAS, China[2021190] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000813124300001 |
| 资助机构 | National Natural Science Foundations of China ; Research Fund of Youth Innovation Promotion Association of CAS, China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/174767]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Tang, Sufang; Cheng, Hui-Ming |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jian,Guo, Penglei,Hu, Chenglong,et al. Fabrication of Large Aerogel-Like Carbon/Carbon Composites with Excellent Load-Bearing Capacity and Thermal-Insulating Performance at 1800 degrees C[J]. ACS NANO,2022,16(4):6565-6577. |
| APA | Li, Jian.,Guo, Penglei.,Hu, Chenglong.,Pang, Shengyang.,Ma, Jian.,...&Cheng, Hui-Ming.(2022).Fabrication of Large Aerogel-Like Carbon/Carbon Composites with Excellent Load-Bearing Capacity and Thermal-Insulating Performance at 1800 degrees C.ACS NANO,16(4),6565-6577. |
| MLA | Li, Jian,et al."Fabrication of Large Aerogel-Like Carbon/Carbon Composites with Excellent Load-Bearing Capacity and Thermal-Insulating Performance at 1800 degrees C".ACS NANO 16.4(2022):6565-6577. |
入库方式： OAI收割
来源：金属研究所
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