Cermet materials prepared by combustion synthesis and metal infi

Details Cermet materials prepared by combustion synthesis and metal infi Cermet materials prepared by combustion synthesis and metal infi

1988-12-12

1991-01-29

Lechert, Jr., Stephen J.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 88, 501 92, 501 96, 501 97, 501 98, C04B 3552

Patent

active

049886452

ABSTRACT:
Ceramic-metal composites (cermets) are made by a combination of self-propagating high temperature combustion synthesis and molten metal infiltration. Solid-gas, solid-solid and solid-liquid reactions of a powder compact produce a porous ceramic body which is infiltrated by molten metal to produce a composite body of higher density. AlN-Al and many other materials can be produced.

REFERENCES:
patent: 4446242 (1984-05-01), Holt
patent: 4585618 (1986-04-01), Fresnel et al.
patent: 4610726 (1986-09-01), King
patent: 4627815 (1986-12-01), Aldinger et al.
patent: 4726842 (1988-02-01), Reeve et al.
patent: 4746363 (1988-05-01), De Angelis
patent: 4770701 (1988-09-01), Henderson et al.
patent: 4877759 (1989-10-01), Holt et al.
Holt, "The Use of Exothermic Reactions in the Synthesis and Densification of Ceramic Materials," MRS Bull., 60-64 (10/1/87, 11/15/87).
Holt, "Combustion Synthesis: A New Area of Research in Mat'ls Science," LLNL Brochure (LLL-TB-84, May 1986).
Munir, "Synthesis of High Temperature Mat'ls by Self-Propagating Combustion Methods," Am. Cer. Bull., 67(2):342-349 (Feb. 1988).

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