Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By mechanically introducing gas into material
Patent
1988-03-15
1991-03-19
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By mechanically introducing gas into material
264 60, 264 82, 264317, C04B 3332
Patent
active
050008927
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 (1968-12-01), Mao
patent: 3421863 (1969-01-01), Bawa
patent: 3437468 (1969-04-01), Seufert
patent: 3473938 (1969-10-01), Oberlin
patent: 3473987 (1969-10-01), Sowards
patent: 3789096 (1974-01-01), Church
patent: 3864154 (1975-02-01), Gazza et al.
patent: 3907949 (1975-09-01), Carlson
patent: 3973977 (1976-08-01), Wilson
patent: 4055451 (1977-10-01), Cockbain
patent: 4647414 (1987-03-01), Mizuno
patent: 4657876 (1987-04-01), Hillig
patent: 4818454 (1989-04-01), Vrquhart et al.
"Oxidation of Molten Aluminum Alloys. Reaction with Refractories"--M. Drouzy and M. Richard--Mar. 1974--Fonderie, France No. 332, pp. 121-128.
"Refractories for Aluminum Alloy Melting Furnaces"--B. Clavaud and V. Jost--Sep., 1980--Lillian Brassinga (from French) Jan. 1985.
LaRoche, Jr. Evans A.
Weinstein Jerry G.
Derrington James
Lanxide Technology Company, LP
McShane William E.
Mortenson Mark G.
LandOfFree
Method of making ceramic composite articles by inverse shape rep does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of making ceramic composite articles by inverse shape rep, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making ceramic composite articles by inverse shape rep will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2008593