Design of Economical and Achievable Aluminum Carbon Composite Aerogel for Efficient Thermal Protection of Aerospace
| Title: | Design of Economical and Achievable Aluminum Carbon Composite Aerogel for Efficient Thermal Protection of Aerospace |
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| Authors: | Yumei Lv, Fei He, Wei Dai, Yulong Ma, Taolue Liu, Yifei Liu, Jianhua Wang |
| Source: | Gels, Vol 8, Iss 8, p 509 (2022) |
| Publisher Information: | MDPI AG, 2022. |
| Publication Year: | 2022 |
| Collection: | LCC:Science LCC:Chemistry LCC:Inorganic chemistry LCC:General. Including alchemy |
| Subject Terms: | aluminum carbon composite aerogel, simple fabrication method, thermal stability, thermal conductivity, heat insulation, numerical simulation, Science, Chemistry, QD1-999, Inorganic chemistry, QD146-197, General. Including alchemy, QD1-65 |
| More Details: | Insulation materials play an extremely important role in the thermal protection of aerospace vehicles. Here, aluminum carbon aerogels (AlCAs) are designed for the thermal protection of aerospace. Taking AlCA with a carbonization temperature of 800 °C (AlCA–800) as an example, scanning electron microscopy (SEM) images show an integrated three-dimensional porous frame structure in AlCA–800. In addition, the thermogravimetric test (TGA) reveals that the weight loss of AlCA–800 is only ca. 10%, confirming its desirable thermal stability. Moreover, the thermal conductivity of AlCA–800 ranges from 0.018 W m−1 K−1 to 0.041 W m−1 K−1, revealing an enormous potential for heat insulation applications. In addition, ANSYS numerical simulations are carried out on a composite structure to forecast the thermal protection ability of AlCA–800 acting as a thermal protection layer. The results uncover that the thermal protective performance of the AlCA–800 layer is outstanding, causing a 1185 K temperature drop of the structure surface that is exposed to a heat environment for ten minutes. Briefly, this work unveils a rational fabrication of the aluminum carbon composite aerogel and paves a new way for the efficient thermal protection materials of aerospace via the simple and economical design of the aluminum carbon aerogels under the guidance of ANSYS numerical simulation. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2310-2861 |
| Relation: | https://www.mdpi.com/2310-2861/8/8/509; https://doaj.org/toc/2310-2861 |
| DOI: | 10.3390/gels8080509 |
| Access URL: | https://doaj.org/article/fae3cb390d2a42dd96b115a5738c505f |
| Accession Number: | edsdoj.fae3cb390d2a42dd96b115a5738c505f |
| Database: | Directory of Open Access Journals |
| ISSN: | 23102861 |
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| DOI: | 10.3390/gels8080509 |
| Published in: | Gels |
| Language: | English |