| Flexible SiC nanowire aerogel with excellent thermal insulation properties | |
| Liang, Xianpeng1,2; Shao, Zhuojie1,2; Wu, Zhen1; Wang, Jingyang1 | |
| Corresponding Author | Wang, Jingyang(jywang@imr.ac.cn) |
| 2022-08-01 | |
| Source Publication | CERAMICS INTERNATIONAL
 |
| ISSN | 0272-8842 |
| Volume | 48Issue:15Pages:22172-22178 |
| Abstract | Aerogels are excellent thermal insulation materials with extremely low thermal conductivity. However, the practical applications of traditional oxide aerogels, such as SiO2 and Al2O3 aerogels, are limited by the disadvantages of easy sintering and intrinsic brittleness. SiC is a good candidate for new aerogel due to its superior stability and good properties from room to high temperatures. However, it is generally supposed that SiC cannot be employed as thermal insulation material because of its high intrinsic thermal conductivity. We herein developed SiC nanowire aerogel with quite low thermal conductivity using freeze-drying method. The fabricated SiC nanowire aerogel exhibits ultra-high porosity (-99.5%), excellent high-temperature stability (-1700 degrees C), extremely low thermal conductivity (0.035 W/(m center dot K)) and good compressive flexibility. The low thermal conductivity is resulted from ultra-high porosity and multi-level nanostructures. Flexible compression behavior is attributed to the capability of moving and buckling of SiC nanowires, originating from both ultra-high porosity and strong connection between nanowires. This exploration highlights the flexible SiC nanowire aerogel as a promising high temperature thermal insulation material. |
| Keyword | SiC Nanowire aerogel Freeze-drying High temperature resistance Flexible Thermal insulation material |
| Funding Organization | Key Research Program of the Chinese Academy of Sciences ; Liaoning Revitalization Talents Program |
| DOI | 10.1016/j.ceramint.2022.04.218 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-2-2] ; Liaoning Revitalization Talents Program[XLYC2002018] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Ceramics |
| WOS ID | WOS:000818438800003 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174925 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Jingyang |
| Affiliation | 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 |
| Recommended Citation GB/T 7714 | Liang, Xianpeng,Shao, Zhuojie,Wu, Zhen,et al. Flexible SiC nanowire aerogel with excellent thermal insulation properties[J]. CERAMICS INTERNATIONAL,2022,48(15):22172-22178. |
| APA | Liang, Xianpeng,Shao, Zhuojie,Wu, Zhen,&Wang, Jingyang.(2022).Flexible SiC nanowire aerogel with excellent thermal insulation properties.CERAMICS INTERNATIONAL,48(15),22172-22178. |
| MLA | Liang, Xianpeng,et al."Flexible SiC nanowire aerogel with excellent thermal insulation properties".CERAMICS INTERNATIONAL 48.15(2022):22172-22178. |
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