Opacified Silica Reusable Surface Insulation (RSI) for Thermal Protection of the Space Shuttle Orbiter

Goldstein, H. E.; Leiser, Daniel B.; Smith, Marnell; Stewart, David A.

doi:10.1007/978-1-4615-9083-5_40

Cited by 8 publications

(6 citation statements)

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“…The AETB tiles used in this study have nominal composition of 68% silica, 20% alumina, and 12% aluminoborosilicate fibers. AETB tiles by other manufacturers may contain up to 3% silicon carbide powder which may result in lower thermal conductivities at higher temperatures compared to the samples studied in the present study, as had previously been observed 13 on the LI-2200 silica tile with a nominal density of 352 kg/m 3 (22 lb/ft 3 ). All three samples used in this study were 304.8 × 304.8 mm, 25.4 mm thick.…”

Section: A Test Samplessupporting

confidence: 52%

Heat Transfer Measurement and Modeling in Rigid High-Temperature Reusable Surface Insulation Tiles

Daryabeigi

Knutson

Cunnington³

2011

49th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

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Heat transfer in rigid reusable surface insulations was investigated. Steady-state thermal conductivity measurements in a vacuum were used to determine the combined contribution of radiation and solid conduction components of heat transfer. Thermal conductivity measurements at higher pressures were then used to estimate the effective insulation characteristic length for gas conduction modeling. The thermal conductivity of the insulation can then be estimated at any temperature and pressure in any gaseous media. The methodology was validated by comparing estimated thermal conductivities with published data on a rigid high-temperature silica reusable surface insulation tile. The methodology was also applied to the alumina enhanced thermal barrier tiles. Thermal contact resistance for thermal conductivity measurements on rigid tiles was also investigated. A technique was developed to effectively eliminate thermal contact resistance on the rigid tile's cold-side surface for the thermal conductivity measurements.

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Section: A Test Samplessupporting

confidence: 52%

Heat Transfer Measurement and Modeling in Rigid High-Temperature Reusable Surface Insulation Tiles

Daryabeigi

Knutson

Cunnington³

2011

49th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

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“…AETB has a nominal composition of 68% silica, 20% alumina, and 12% aluminoborosilicate fibers. AETB samples by other manufacturers may contain up to 3% silicon carbide powder which may result in lower thermal conductivities at higher temperatures compared to the samples studied in the present study, as had previously been observed 24 on the LI-2200 rigid silica samples with a nominal density of 352 kg/m 3 (22 lb/ft 3 ). All three samples used in this study were 304.8  304.8 mm, 25.4 mm thick.…”

Section: A Test Samplesmentioning

confidence: 50%

Heat Transfer Modeling for Rigid High-Temperature Fibrous Insulation

Daryabeigi

Cunnington²,

Knutson

2012

43rd AIAA Thermophysics Conference

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Combined radiation and conduction heat transfer through a high-temperature, highporosity, rigid multiple-fiber fibrous insulation was modeled using a thermal model previously used to model heat transfer in flexible single-fiber fibrous insulation. The rigid insulation studied was alumina enhanced thermal barrier (AETB) at densities between 130 and 260 kg/m 3 . The model consists of using the diffusion approximation for radiation heat transfer, a semi-empirical solid conduction model, and a standard gas conduction model.

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“…Their development can be divided into three stages. In the first stage, quartz fibers were used as the skeleton and silica sol served as the high-temperature binder [31]. In the second stage, high-temperature-resistant aluminum borosilicate fibers were added to the quartz fibers [32].…”

Section: Development Processmentioning

confidence: 99%

Preparation of Fibrous Three-Dimensional Porous Materials and Their Research Progress in the Field of Stealth Protection

Zhang,

Zhao,

Chen

et al. 2024

Nanomaterials

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Intelligent and diversified development of modern detection technology greatly affects the battlefield survivability of military targets, especially infrared, acoustic wave, and radar detection expose targets by capturing their unavoidable infrared radiation, acoustic wave, and electromagnetic wave information, greatly affecting their battlefield survival and penetration capabilities. Therefore, there is an urgent need to develop stealth-protective materials that can suppress infrared radiation, reduce acoustic characteristics, and weaken electromagnetic signals. Fibrous three-dimensional porous materials, with their high porosity, excellent structural adjustability, and superior mechanical properties, possess strong potential for development in the field of stealth protection. This article introduced and reviewed the characteristics and development process of fibrous three-dimensional porous materials at both the micrometer and nanometer scales. Then, the process and characteristics of preparing fibrous three-dimensional porous materials through vacuum forming, gel solidification, freeze-casting, and impregnation stacking methods were analyzed and discussed. Meanwhile, their current application status in infrared, acoustic wave, and radar stealth fields was summarized and their existing problems and development trends in these areas from the perspectives of preparation processes and applicability were analyzed. Finally, several prospects for the current challenges faced by fibrous three-dimensional porous materials were proposed as follows: functionally modifying fibers to enhance their applicability through self-cross-linking; establishing theoretical models for the transmission of thermal energy, acoustic waves, and electromagnetic waves within fibrous porous materials; constructing fibrous porous materials resistant to impact, shear, and fracture to meet the needs of practical applications; developing multifunctional stealth fibrous porous materials to confer full-spectrum broadband stealth capability; and exploring the relationship between material size and mechanical properties as a basis for preparing large-scale samples that meet the application’s requirement. This review is very timely and aims to focus researchers’ attention on the importance and research progress of fibrous porous materials in the field of stealth protection, so as to solve the problems and challenges of fibrous porous materials in the field of stealth protection and to promote the further innovation of fibrous porous materials in terms of structure and function.

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Opacified Silica Reusable Surface Insulation (RSI) for Thermal Protection of the Space Shuttle Orbiter

Cited by 8 publications

References 0 publications

Heat Transfer Measurement and Modeling in Rigid High-Temperature Reusable Surface Insulation Tiles

Heat Transfer Measurement and Modeling in Rigid High-Temperature Reusable Surface Insulation Tiles

Heat Transfer Modeling for Rigid High-Temperature Fibrous Insulation

Preparation of Fibrous Three-Dimensional Porous Materials and Their Research Progress in the Field of Stealth Protection

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