Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By mechanically introducing gas into material
Patent
1988-06-13
1989-04-04
Cintins, Ivars
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By mechanically introducing gas into material
264 60, 264 82, C04B 3332
Patent
active
048184543
ABSTRACT:
There is disclosed a method of producing a self-supporting ceramic composite body having therein at least one cavity which inversely replicates the geometry of an expendable pattern. The method includes the steps of surrounding the expendable pattern with a filler material to thereby form a filled cavity within the filler material. The expendable pattern is chemically or physically removed from the filler material and a quantity of a parent metal is put into the cavity. The parent metal is heated to a temperature above its melting point and an oxidation reaction process begins whereby the oxidation reaction product infiltrates and embeds the surrounding filler material. Excess filler material and/or excess parent metal are removed, thus resulting in a self-supporting ceramic composite body having a cavity in the shape of the expendable pattern.
REFERENCES:
patent: 2741822 (1956-04-01), Udy
patent: 3255027 (1966-06-01), Talsma
patent: 3296002 (1967-01-01), Hare
patent: 3298842 (1967-01-01), Seufert
patent: 3419404 (1964-06-01), Mao
patent: 3421863 (1969-01-01), Bawa et al.
patent: 3437468 (1969-04-01), Seufert
patent: 3473938 (1969-10-01), Oberlin
patent: 3473987 (1969-10-01), Sowards
patent: 3538231 (1970-11-01), Newkirk et al.
patent: 3789096 (1974-01-01), Church
patent: 3864154 (1975-02-01), Gazza et al.
patent: 3973977 (1976-08-01), Wilson
patent: 4055451 (1977-10-01), Cockbain et al.
patent: 4647414 (1987-03-01), Mizuno et al.
patent: 4657876 (1987-04-01), Hillig
"Oxidation of Molten Aluminum Alloys. Reaction with Refractories" by M. Drouzy and M. Richard--Mar. 1974--Fonderie, France, No. 332, pp. 121-128.
"Refractories for Aluminum Alloy Melting Furnaces" by B. Clavaud and V. Jost, Sep. 1980--Trans. Lillian Brassinga, Jan. 1985.
LaRoche, Jr. E. Allen
Urquhart Andrew W.
Cintins Ivars
Lanxide Technology Company, LP
McShane William E.
Mortenson Mark G.
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