Ceramic foams

Details Ceramic foams Ceramic foams

1990-03-15

1991-10-29

Group, Karl

Compositions: ceramic

Ceramic compositions

Pore-forming

501 85, 501 98, 501127, 252516, 252518, C04B 3800

Patent

active

050616609

ABSTRACT:
Ceramic foams in which the open cells are connected by a three-dimensional, substantially continuous ceramic matrix formed of interconnected hollow ligaments, are made from an open-cell, reticulated precursor metal, i.e., a metal foam. The precursor metal first is treated so as to allow a support coating to form thereon, and thereafter the coated precursor is heated above the melting point of the metal in the presence of an oxidant to form an oxidation reaction product.

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: 3973977 (1976-08-01), Wilson
patent: 4258099 (1981-03-01), Narumiya
patent: 4833106 (1989-05-01), Horie
"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.

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