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Mechanical Properties and Durability Study of Aerogel-Base Thermal Insulation for Advanced Space Suit
Technical Paper
2003-01-2446
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Fiber-reinforced Aerogel composite insulations provide superior thermal insulation protection in both the low-earth orbit (LEO) and near-earth neighborhood planetary environments. The flexible nature and thermal properties of these materials make them the best insulation candidates for advanced space suit application. This paper reviews the properties of various Aerogel composite materials developed for NASA by Aspen Systems, Inc. Previous studies showed that the Aerogel materials retained acceptable thermal performance after some amount of mechanical cycling. The goal of the current work is to reach a complete understanding of the mechanical properties of these materials in the domain of space suit application. Hence, a good knowledge of the durability of the aerogel composites is needed. This paper presents the extensive testing program needed to determine the life of these insulations for advanced space suit application. In particular, this test program focuses on evaluating the change of thermal conductivity as a function of the degree of mechanical cycling. The changes in chemical formulation are also evaluated in terms of materials overall thermal and mechanical performance. Initial test results are presented.
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Authors
Citation
Tang, H., Orndoff, E., and Trevino, L., "Mechanical Properties and Durability Study of Aerogel-Base Thermal Insulation for Advanced Space Suit," SAE Technical Paper 2003-01-2446, 2003, https://doi.org/10.4271/2003-01-2446.Also In
References
- Orndoff Evelyne S. Trevino Luis A. “Thermal Insulation Performance of Textile Structures for Spacesuit Application at Martian Pressure and Temperature” 2nd International Conference on Safety & Protective Fabrics April 27, 2000
- Trevino Luis A. Orndoff Evelyne S. “Advanced Space Suit Insulation Feasibility Study” 30th ICES Conference No. 2000-01-2479 July 12, 2000
- Tang Henry H. Orndoff Evelyne S. Trevino Luis A. “Thermal Conductivity of Lofty Nonwovens in Space and Planetary Vacuum Environment” 31st ICES Conference No. 2001-01-2166 July 2001
- Trevino Luis A. Orndoff Evelyne S. Tang Henry H. Gould George L. Trifu Roxana “Aerogel-Based Insulation for Advanced Space Suit” 32nd ICES Conference No 2002-01-2316 July 2002
- The Microstructure Materials Group of Ernest Orlando Lawrence Berkeley National Laboratory eande.lbl.gov/ECS/aerogels/aerogels.htm
- ASTM Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus