Methods of making self-supporting ceramic structures

Details Methods of making self-supporting ceramic structures Methods of making self-supporting ceramic structures

1988-06-24

1989-05-02

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 3560

Patent

active

048266434

ABSTRACT:
A method of producing self-supporting ceramic structures includes providing a first self-supporting ceramic body comprising (i) a polycrystalline oxidation reaction product formed upon oxidation of a first molten parent metal with a first oxidant, and (ii) interconnected porosity at least partially accessible from one or more surfaces of said first ceramic body. A second ceramic body is used to form, by reaction with a vapor-phase oxidant, a second polycrystalline material which is infiltrated into the porosity of at least a zone of said first ceramic body.

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"Oxidation of Molten Aluminum Alloys, Reaction with Refractories," M. Drouzy and M. Richard--Mar. 1974.
"Refractories for Aluminum Alloy Melting Furnaces," by B. Clavaud and V. Jost, Venissieux, France--Sep. 1980--translated by L. Brassinga.

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