Compositions: ceramic – Ceramic compositions – Carbide or oxycarbide containing
Patent
1989-04-14
1991-05-21
Group, Karl
Compositions: ceramic
Ceramic compositions
Carbide or oxycarbide containing
501 95, 501 96, 501119, 501127, 501128, 264 65, 428367, C04B 3510
Patent
active
050175262
ABSTRACT:
A method of producing self-supporting ceramic composite bodies of desired shape by infiltrating a permeable self supporting preform with polycrystalline matrix material comprising an oxidation reaction product obtained by oxidation of a parent metal precursor, such as aluminum, and optionally containing therein metallic constituents. The composite body is formed by contacting a zone of a permeable self supporting preform, having at least one defined surface boundary spaced from said contacting zone, with a body of molten metal which is reacted with a suitable vapor-phase oxidant to form an oxidation reaction product. Within a certain temperature region, and optionally with one or more dopants in or on the parent metal or said permeable preform, molten parent metal migrates through previously formed oxidation reaction product into contact with the oxidant, causing the oxidation reaction product to grow into the preform toward said defined surface boundary so as to infiltrate the preform up to said defined surface boundary with the oxidation reaction product, and providing the composite structure of desired geometry.
REFERENCES:
patent: 1362237 (1920-12-01), Ros
patent: 2741822 (1956-04-01), Udy
patent: 3108887 (1963-10-01), Lonie
patent: 3255027 (1966-06-01), Talsma
patent: 3262763 (1966-07-01), Bechtold
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 (1967-04-01), Seufert
patent: 3473938 (1969-10-01), Oberlin
patent: 3473987 (1969-10-01), Sowards
patent: 3538231 (1970-11-01), Newkirk et al.
patent: 3551101 (1970-12-01), Matsuo
patent: 3692474 (1972-09-01), Arber
patent: 3789096 (1974-01-01), Church
patent: 3864154 (1975-02-01), Gazza et al.
patent: 3973977 (1976-08-01), Wilson
patent: 4117096 (1978-09-01), Hosaka et al.
patent: 4713360 (1987-12-01), Newkirk et al.
patent: 4822759 (1989-04-01), Newkirk et al.
patent: 4851375 (1989-07-01), Newkirk et al.
Drouzy et al, "Oxidation of Molten Aluminum Alloys", Reaction with Refractories, France, vol. 29, No. 332, pp. 121-128 Mar. 1974.
Clavand et al, "Refractories for Aluminum Alloy Melting Furnaces", Sep. 25 & 26, 1980.
Moskovits, "The Kinetics of Oxidation of Molten Aluminum in Oxidation Systems", Oxidation of Metals, vol. 5, No. 1, (1972).
Newkirk Marc S.
Zwicker Shirley L.
Group Karl
Lanxide Technology Company, LP
McShane William E.
Mortenson Mark G.
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