Coated refractory metals, coated and alloyed graphites, hafnium-tantalum alloys, refractory borides, and stabilized zirconias are considered for the 3600–4000 F high-velocity air environment. Only refractory borides and stabilized zirconias are indicated as offering long duration and reuse capabilities for such high-temperature utilization. Iridium, as coatings on substrates of either graphites or refractory metals, appears attractive for shorter times (less than 1 hr). Environmental evaluation and the need for a theoretical framework to enable the prediction of performance data for such materials are indicated to be major problems facing users and suppliers.


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    Titel :

    4000 F Oxidation Resistant Thermal Protection Materials


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    National Aeronautic and Space Engineering and Manufacturing Meeting ; 1966



    Erscheinungsdatum :

    01.02.1966




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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