Method of fabricating a metal/ceramic composite structure
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United States of America Patent
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-
Feb 2, 1988
Grant Date -
N/A
app pub date -
Jul 1, 1987
filing date -
Jul 1, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of producing a metal/ceramic composite structure in which an uncolidated metal or metal alloy powder is loaded into a sealable glass mold comprising a hollow ceramic sleeve and a sealable outer glass envelope surrounding the ceramic sleeve and forming with the outer wall of the ceramic sleeve a sealable chamber for the metal or metal alloy powder, wherein the glass is a type which becomes plastic when heated. The air in the mold is removed under vacuum and the mold is sealed and placed into a free flowing refractory powder in a crucible and consolidated by sintering under atmospheric pressure (CAP.RTM. process). Removal of the glass envelope leaves a composite article having a consolidated metal or metal alloy layer surrounding and placing a hollow ceramic liner (sleeve) under both radial and axial compression. A ceramic-line metal gun barrel insert can be produced by using a ceramic sleeve with rifling on its inner surface.
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