Investigations of a Control Surface Seal for Reentry Vehicles

Dunlap, Patrick H.; Steinetz, Bruce M.; Curry, D. M.; DeMange, Jeffrey J.; Rivers, H. Kevin; Hsu, Su Yuen

doi:10.2514/2.3979

Cited by 14 publications

(15 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…g ., 600 °C for silica aerogels and 1000 °C for alumina aerogels). For example, heat sealing materials used for the door of hypersonic reentry vehicles must withstand reversible compression under large cyclic strain and a high-temperature (>800 °C) oxidation environment owing to the complex aerodynamic heating conditions . And catalytic gas combustion also requires a catalyst support to work at temperatures higher than 1000 °C .…”

mentioning

confidence: 99%

Ultralight, Recoverable, and High-Temperature-Resistant SiC Nanowire Aerogel

et al. 2018

View full text Add to dashboard Cite

Ultralight ceramic aerogels with the property combination of recoverable compressibility and excellent high-temperature stability are attractive for use in harsh environments. However, conventional ceramic aerogels are usually constructed by oxide ceramic nanoparticles, and their practical applications have always been limited by the brittle nature of ceramics and volume shrinkage at high temperature. Silicon carbide (SiC) nanowire offers the integrated properties of elasticity and flexibility of one-dimensional (1D) nanomaterials and superior high-temperature thermal and chemical stability of SiC ceramics, which makes it a promising building block for compressible ceramic nanowire aerogels (NWAs). Here, we report the fabrication and properties of a highly porous three-dimensional (3D) SiC NWA assembled by a large number of interweaving 3C-SiC nanowires of 20-50 nm diameter and tens to hundreds of micrometers in length. The SiC NWA possesses ultralow density (∼5 mg cm), excellent mechanical properties of large recoverable compression strain (>70%) and fatigue resistance, refractory property, oxidation and high-temperature resistance, and thermal insulating property (0.026 W m K at room temperature in N). When used as absorbents, the SiC NWAs exhibit an adsorption selectivity of low-viscosity organic solvents with high absorption capacity (130-237 g g). The successful fabrication of such an attractive material may provide promising perspectives to the design and fabrication of other compressible and multifunctional ceramic NWAs.

show abstract

mentioning

confidence: 99%

Ultralight, Recoverable, and High-Temperature-Resistant SiC Nanowire Aerogel

et al. 2018

View full text Add to dashboard Cite

show abstract

“…the Space Shuttle or the X-38 vehicle). 25,45,46 In our experiments the specimen, characterized by a diameter of 40 mm and by a thickness equal to 2 mm, was heated by concentrated solar energy at the focus of the 1 MW solar furnace. On the back face of the sample, total (wavelength range 0.6-40 m) and spectral (wavelength 5 m) directional (0-80 • by 10 • step) radiance were measured by mean of a moving three-mirrors goniometer that collects the radiation emitted from the sample at different angles.…”

Section: Emissivity Measurement Methodsmentioning

confidence: 99%

Emissivity and catalycity measurements on SiC-coated carbon fibre reinforced silicon carbide composite

Alfano

Scatteia

Cantoni

et al. 2009

Journal of the European Ceramic Society

View full text Add to dashboard Cite

“…Current seals on the Shuttle orbiters are designed to work at relatively low temperatures (<1500 °F), while seal temperatures for future vehicles have been predicted to be greater than 2000°F. 29 The current state-of-the-art (SOA) seal design from the Shuttle orbiters served as the baseline design for this task. This seal consists of an Inconel X-750 spring tube stuffed with Saffil batting and overbraided with two layers of Nextel 312 ceramic fibers.…”

Section: Thermal Protection Systemsmentioning

confidence: 99%

Airframe Technology Development for Next Generation Launch Vehicles

Glass

2004

55th International Astronautical Congress of the International Astronautical Federation, the International Academy of Astronaut

View full text Add to dashboard Cite

The Airframe subproject within NASA's Next Generation Launch Technology (NGLT) program has the responsibility to develop airframe technology for both rocket and airbreathing vehicles for access to space. The Airframe sub-project pushes the state-ofthe-art in airframe technology for low-cost, reliable, and safe space transportation. Both low and medium technology readiness level (TRL) activities are being pursued. The key technical areas being addressed include design and integration, hot and integrated structures, cryogenic tanks, and thermal protection systems. Each of the technologies in these areas are discussed in this paper.

show abstract

Investigations of a Control Surface Seal for Reentry Vehicles

Cited by 14 publications

References 4 publications

Ultralight, Recoverable, and High-Temperature-Resistant SiC Nanowire Aerogel

Ultralight, Recoverable, and High-Temperature-Resistant SiC Nanowire Aerogel

Emissivity and catalycity measurements on SiC-coated carbon fibre reinforced silicon carbide composite

Airframe Technology Development for Next Generation Launch Vehicles

Contact Info

Product

Resources

About