Compositions: ceramic – Ceramic compositions – Refractory
Patent
1990-10-02
1992-04-14
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Refractory
501 89, 501 98, 501105, 501119, 501134, 501154, 228121, 156 89, 264 65, 264DIG76, B23K 2800
Patent
active
051048353
ABSTRACT:
Ceramic bodies are bonded together via a layer of an oxidation reaction product of a molten metal, which metal is present in one or both of the ceramic bodies prior to bonding. At least one of the ceramic bodies comprises a ceramic product formed by the oxidation reaction of molten parent metal (e.g., alumina from molten aluminum) and grown as molten metal is transported through, and oxidized on the surface of, its own oxidation product. One or both of the ceramic bodies used in the bonding process contains surface-accessible channels of residual metal, i.e., metal channels which have resulted from molten-metal transport during the ceramic growth process. When the suitably assembled ceramic bodies are heated in the presence of an oxidant at a temperature above the melting point of the residual metal, molten metal at the surface of at least one of the body ceramic bodies reacts with the oxidant to form a layer of oxidation reaction product, which may or may not incorporate at least one filler material. This layer of oxidation reaction product continues to grow between the facing surfaces of the assembled ceramic bodies until the oxidation reaction product forms a bond between the ceramic bodies.
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 et al.
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: 3973977 (1976-08-01), Wilson
patent: 4806508 (1989-02-01), Dwivedi et al.
patent: 4824008 (1989-04-01), Luszcz 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.
Luszcz Stanley J.
Newkirk Marc S.
Urquhart Andrew W.
Bonner C. M.
Boyer Michael K.
Dixon Jr. William R.
Lanxide Technology Company, LP
McShane William E.
LandOfFree
Surface bonding of ceramic bodies does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surface bonding of ceramic bodies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface bonding of ceramic bodies will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2349076