Compositions: ceramic – Ceramic compositions – Refractory
Patent
1990-02-12
1992-02-04
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Refractory
501127, 501 96, 501153, C04B 3502
Patent
active
050860194
ABSTRACT:
A method for producing a self-supporting ceramic composite structure comprising a ceramic matrix embedding a filler, includes oxidizing a parent metal to form a polycrystalline material comprising the oxidation reaction product of the parent metal and, optionally, one or more metallic constituents. The method includes heating the parent metal to provide a source of molten parent metal and a reservoir of molten metal which is in communication with the parent metal and contacting the molten parent metal with a permeable bedding of filler. The molten parent metal reacts with the oxidant to form the oxidation reaction product and is replenished by the reservoir as the reacting continues for a time sufficient to grow the oxidation reaction product to a desired extent and thereby embed at least a portion of the bedding of filler within the oxidation reaction product to form the ceramic composite structure. The bedding of filler may have any suitable shape, including that of a hollow body, the interior of which is contacted by the molten parent metal to grow the oxidation reaction product through the shaped, hollow body of filler.
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Kantner Robert C.
Newkirk Marc S.
Weinstein Jerry G.
Boyer Michael K.
Dixon Jr. William R.
Lanxide Technology Company, LP
Lewis Carol A.
Mortenson Mark G.
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