Back to results
US 5,212,124 AGranted
Ceramic composite articles with shape replicated surfaces
AssigneeLanxide Technology Company, LP
InventorMarc S. Newkirk
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeLanxide Technology Company, LP
InventorMarc S. Newkirk
Estimating the term…
A method for producing a self-supporting ceramic composite body having a negative pattern which inversely replicates the positive pattern of a parent metal precursor having thereon a positive pattern section which is emplaced in conforming engagement with a bed of conformable filler. The parent metal precursor, which also has a non-replicating section, is melted and reacted with an oxidant to form a polycrystalline oxidation reaction product which grows primarily only from the positive pattern section of the parent metal precursor and through the filler. The molten parent metal is drawn through the growing polycrystalline material and oxidized at the interface between the oxidant and previously formed oxidation reaction product. The reaction is continued for sufficient time to at least partially embed the filler within the oxidation reaction product and form the ceramic composite body containing a negative pattern which inversely replicates the positive pattern of the parent metal precursor.
A self-supporting ceramic matrix composite body comprising a ceramic matrix incorporating at least one filler material, said ceramic matrix embedding said filler material and said ceramic matrix consisting essentially of about 60-99 percent by weight of an essentially single phase polycrystalline oxidation reaction product consisting essentially of a material selected from the group consisting of silicon carbide, silicon boride, aluminum boride, titanium nitride, zirconium nitride, titanium boride, zirconium boride, tin oxide and aluminum oxynitride, and the remainder of said ceramic matrix consisting essentially of at least one metallic constituent and voids.
A self-supporting ceramic matrix composite body consisting essentially of from about 2% to about 95% by volume of a three-dimensionally interconnected ceramic matrix and from about 5% to about 98% by volume of at least one filler incorporated within said matrix, said matrix consisting essentially of from about 60% to about 99% by weight of a three-dimensionally interconnected oxidation reaction product consisting essentially of a material selected from the group consisting of silicon carbide, silicon boride, aluminum boride, titanium nitride, zirconium nitride, titanium boride, zirconium boride, tin oxide and aluminum oxynitride and the remainder of said matrix consisting essentially of at least one interconnected metallic constituent and voids.
Dependencies are inferred from the claim text.