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Fabrication of thin-wall hollow nickel spheres and low density syntactic foams
A process has been developed to fabricate thin-wall hollow spheres from conventional oxide powders at room temperature. 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. Processing and properties of this class of low density structures will be discussed.
Fabrication of thin-wall hollow nickel spheres and low density syntactic foams
A process has been developed to fabricate thin-wall hollow spheres from conventional oxide powders at room temperature. 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. Processing and properties of this class of low density structures will be discussed.
Fabrication of thin-wall hollow nickel spheres and low density syntactic foams
R. B. Clancy (author) / T. H. Sanders (author) / J. K. Cochran (author)
1991
9 pages
Report
No indication
English
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