Fiber burnout process yields low densities. Low density attained by process of sacrificial burnout. Graphite or carbon fibers mixed into slurry of silica, alumina, and boron-compound fibers in amounts ranging from 25 to 75 percent of total fiber content by weight. Mixture formed into blocks and dried. Blocks placed in kiln and heated to 1,600 degrees F(870 degrees C) for several hours. Graphite or carbon fibers slowly oxidize away, leaving voids and reducing block density. Finally, blocks heated to 2,350 degrees F (1,290 degrees C) for 90 minutes to bond remaining ceramic fibers together. Developed for use on Space Shuttle and other spacecraft, rigid insulation machined to requisite shape and bonded in place.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Lightweight Ceramic Insulation


    Contributors:

    Published in:

    Publication date :

    1986-05-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Lightweight Electrical Insulation

    Schroeder, J. E. | NTRS | 1985


    Lightweight Aerogel Bead Insulation

    Trifu, Roxana M. / Caggiano, Gregory J. / Gould, George L. | ASCE | 2008


    LIGHTWEIGHT INNER INSULATION FOR VEHICLE

    KWON CHOONG HO / NAMGUNG JAEKYUN | European Patent Office | 2018

    Free access

    Lightweight High-Temperature Thermal Insulation

    Wagner, W. R. / Fasheh, J. I. | NTRS | 1985


    Lightweight, self-evacuated insulation panels

    Dengler, R. P. / Niendorf, L. R. / Nies, G. E. et al. | NTRS | 1970