TWO new ablative materials, designated SLA-741 and SLA-561, have been developed by Martin Marietta for Mars Lander thermal protection. The density range of these ablators is 0.18-0.22 g/cc and is substantially lower than that of other types of low density charring ablators. Plasma arc testing conducted in a simulated Mars atmosphere has established that SLA ablators are considerably more efficient than conventional ablators such as filled silicone, low density nylon-phenolic, or corkboard and that they form sturdy, erosion resistant chars.


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    Title :

    New Ablative Heat Shield Materials for Mars Landers


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    National Aeronautic and Space Engineering and Manufacturing Meeting ; 1966



    Publication date :

    1966-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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