Stock material or miscellaneous articles – All metal or with adjacent metals – Component of composite having metal continuous phase...
Patent
1989-03-17
1992-04-21
Group, Karl
Stock material or miscellaneous articles
All metal or with adjacent metals
Component of composite having metal continuous phase...
428565, 428552, 428568, 428628, C22C 2900
Patent
active
051066980
ABSTRACT:
Self-supporting ceramic bodies having a modified metal-containing component are formed by first providing a self-supporting ceramic body comprising (1) a polycrystalline oxidation reaction product formed upon oxidation of a molten parent metal precursor with an oxidant, and (ii) an interconnected metal-containing component at least partially accessible from one or more surfaces of said ceramic body. The surface or surfaces of the ceramic body are contacted with a quantity of foreign metal different from said interconnected metal-containing component at a temperature and for a time sufficient to allow for interdiffusion, whereby at least a portion of said metal-containing component is displaced by said foreign metal. The resulting ceramic body, having an altered metal-containing component, exhibits modified or improved properties.
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Newkirk Marc S.
Urquhart Andrew W.
Zwicker Harry R.
Group Karl
Lanxide Technology Company, LP
Lewis Carol A.
Mortenson Mark G.
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