Self-supporting ceramic structures and methods of making the sam

Details Self-supporting ceramic structures and methods of making the sam Self-supporting ceramic structures and methods of making the sam

1988-03-15

1991-06-18

Derrington, James

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

050247948

ABSTRACT:
A method of producing a self-supporting ceramic or ceramic composite structures which includes providing a first self-supporting ceramic or ceramic composite 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 an oxidant, a second polycrystalline material which is infiltrated into the porosity of at least a portion of said first ceramic body.

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