Metal treatment – Stock – Aluminum base
Patent
1996-01-31
1998-04-07
Simmons, David A.
Metal treatment
Stock
Aluminum base
148538, 148549, 75368, 428614, C22C 2100
Patent
active
057359768
ABSTRACT:
A novel method for producing a ceramic phase particle dispersoid in metal and a novel product composed thereof are disclosed, including finely sized carbide phase particles formed in situ in a molten metal by salt-based liquid state reaction with Ti, B, Si, Sc, Hf, Nb, Ta, Zr, Mo, Al (when the molten metal matrix is not aluminum), or V and a halide salt containing carbon particles to form a uniform distribution of finely sized ceramic phase particles formed and dispersed in-situ in the metal matrix. The step of reacting includes vigorously stirring to form a reaction mixture at an elevated temperature for a residence time less than one hour to form a uniform distribution of particles sized less than 2.5 microns uniformly dispersed in-situ in the metal matrix.
REFERENCES:
patent: 4820339 (1989-04-01), Bienvenu et al.
patent: 4915908 (1990-04-01), Nagle et al.
patent: 5405427 (1995-04-01), Eckert
Chu Men Glenn
Ray Siba P.
Aluminum Company of America
Elve M. Alexandra
Glantz Douglas G.
Pearce-Smith David W.
Simmons David A.
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