At the end of the NASA High Speed Research (HSR) Program, NASA Langley Research Center (LaRC) began a program to screen the high-temperature Polymeric Composite Materials (PMCs) characterized by the HSR Durability Program for possible use in Reusable Launch Vehicles (RLVs) operating under extreme temperature conditions. The HSR Program focused on developing material-related technologies to enable a High Speed Civil Transport (HSCT) capable of operating temperatures ranging from 54 degree C (-65 degree F) to 177 degree C (350 degree F). A high-temperature polymeric resin, PETI-5 was used in the HSR Program to satisfy the requirements for performance and durability for a PMC. For RLVs, it was anticipated that this high temperature material would contribute to reducing the overall weight of a vehicle by eliminating or reducing the thermal protection required to protect the internal structural elements of the vehicle and increasing the structural strain limits. The tests were performed to determine temperature-dependent mechanical and physical properties of IM7/PETI-5 composite over a temperature range from cryogenic temperature -253 degree C (-423 degree F) to the material's maximum use temperature of 230 degree C (450 degree F). This paper presents results from the test program for the temperature-dependent mechanical and physical properties of IM7/PETI-5 composite in the temperature range from -253 degree C (-423 degree F) to 27 degree C (80 degree F).


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    Title :

    High temperature polyimide materials in extreme temperature environments


    Contributors:
    Johnson, T.F. (author) / Gates, T.S. (author)


    Publication date :

    2001


    Size :

    12 Seiten, 10 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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