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Aerogels in aerospace: an overview


Bheekhun, Nadiir and Abu Talib, Abd. Rahim and Hassan, Mohd Roshdi (2013) Aerogels in aerospace: an overview. Advances in Materials Science and Engineering, 2013. art. no. 406065. pp. 1-18. ISSN 1687-8434; ESSN: 1687-8442


Aerogels are highly porous structures prepared via a sol-gel process and supercritical drying technology. Among the classes of aerogels, silica aerogel exhibits the most remarkable physical properties, possessing lower density, thermal conductivity, refractive index, and dielectric constant than any solids. Its acoustical property is such that it can absorb the sound waves reducing speed to 100 m/s compared to 332 m/s for air. However, when it comes to commercialization, the result is not as expected. It seems that mass production, particularly in the aerospace industry, has dawdled behind. This paper highlights the evolution of aerogels in general and discusses the functions and significances of silica aerogel in previous astronautical applications. Future outer-space applications have been proposed as per the current research trend. Finally, the implementation of conventional silica aerogel in aeronautics is argued with an alternative known as Maerogel.

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Official URL or Download Paper: http://www.hindawi.com/journals/amse/2013/406065/

Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1155/2013/406065
Publisher: Hindawi Publishing Corporation
Keywords: Maerogel; Aerospace industry; Aerogels; Silica aerogel
Depositing User: Nabilah Mustapa
Date Deposited: 24 May 2015 05:18
Last Modified: 24 Aug 2015 04:43
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1155/2013/406065
URI: http://psasir.upm.edu.my/id/eprint/28873
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