A process has been developed at Georgia Tech to fabricate thin-wall hollow spheres from conventinal oxide powders at room temperatur. The polymer-bonded powder shells are fired in air to sinter the walls, leaving the shells either impervious or porous. Alternatively, the oxide shells can be preferentially reduced to produce thin-wall hollow metal spheres which can be bonded together to produce an ultra light weight closed-cell foam. The processing and properties of this unique class of low density strucures will be discussed.


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    Title :

    Fabrication of thin-wall hollow nickel spheres and low density syntactic foams


    Additional title:

    Herstellung dünnwandiger hohler Nickelkugel und syntaktischer Schäume niedriger Wichte


    Contributors:


    Publication date :

    1991


    Size :

    9 Seiten, 6 Bilder, 11 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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