Method for making ceramic-metal gradient composites
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United States of America Patent
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Jun 11, 1996
Issued Date -
N/A
app pub date -
Mar 31, 1994
filing date -
Sep 17, 1992
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Expired
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Abstract
A process for fabricating ceramic-metal composites having ceramic and metal phases wherein the ceramic to metal ratio changes within the ceramic. The process includes the steps of contacting a porous ceramic matrix material with a molten metal whereby capillary action pulls the metal into the ceramic matrix to substantially fill the void space. The ceramic matrix has a porosity gradient wherein the infiltrated composite has a varying ratio of ceramic to metal.
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