Ablative Heat Shields: Materials & Uses

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SUMMARY

Ablative heat shields, essential for space capsules, utilize materials such as Iconel 617 and Nextel for their thermal protection systems. The ablator is a composite of cork wood, binder, and silica glass spheres, originally developed for the Viking Mars lander missions. This technology has historical significance, having been employed in early US manned space missions, including Mercury, Gemini, and Apollo. Understanding these materials is crucial for advancements in aerospace engineering.

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  • Knowledge of thermal protection systems (TPS)
  • Familiarity with ablative materials and their properties
  • Understanding of aerospace engineering principles
  • Awareness of historical space missions and their technologies
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  • Research the properties and applications of Iconel 617 in aerospace
  • Explore the manufacturing processes of Nextel ceramic materials
  • Study the evolution of ablative heat shield technology in space missions
  • Investigate current advancements in thermal protection systems for future spacecraft
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Aerospace engineers, materials scientists, and students interested in the development and application of thermal protection systems in space exploration.

Flyboy
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I know that the heat shields on space capsules today are ablative, but what are they made of? :confused: Any help would be welcome.
 
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In the new X-33 the substance Iconel 617 is used in the honeycomb TPS (thermal protection system). Generally, Nextel (a ceramic) is used.

-Ns
 
http://www.centennialofflight.gov/essay/Evolution_of_Technology/reentry/Tech19.htm

http://marsrovers.jpl.nasa.gov/mission/ spacecraft _edl_aeroshell.html

The ablator itself is a unique blend of cork wood, binder and many tiny silica glass spheres. It was invented for the heat shields flown on the Viking Mars lander missions 25 years ago. A similar technology was used in the first US manned space missions Mercury, Gemini and Apollo.
from NASA's Mar's Rovers site (second link).
 
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Thanks guys. I am glad you could help.:biggrin:
 

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