Production of metal carbide articles
AssigneeLanxide Technology Company, LP
InventorsAdam J. Gesing, Edward S. Luce, Narashima S. Raghavan, Danny R. White
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Abstract
A method for manufacture of Group IVB metal carbide ceramic composites is provided wherein a permeable mass of filler and carbon is contacted with a molten Group IVB metal. The molten metal is maintained in contact with the permeable mass for a sufficient period to infiltrate the permeable mass and to react the molten metal with the carbon source to form a Group IVB metal carbide composite. The permeable mass may comprise a Group IVB metal carbide, or other inert filler, or a combination of filler materials.
Claims12
A method for producing a self-supporting ceramic composite comprising carbide, which method comprises:
- (a) stablishing in a substantially inert atmosphere a body of molten parent metal comprising a metal selected from the group consisting of titanium, hafnium and zirconium in surface contact with a permeable mass comprising (i) a filler, and (ii) a carbon source for reaction with said molten metal toform a carbide of the molten metal, the carbon moiety of said carbon source being present in no more thana stoichiometric amount;
- (b) maintaining said surface contact for a time sufficient to effect infiltration of molten parent metal into said permeable mass and to permit reaction of saidmolten parent metal with said carbon source to form a parent metal carbide;
- and
- (c) continuing said infiltration and reaction for a time sufficient to at least substantially complete said reaction and to thereby produce said self-supporting ceramic composite.
Dependencies are inferred from the claim text.