Patent ID: 8017072

Claim:
An aluminum alloy having high strength, ductility and toughness, comprising: about 1 to about 10 weight percent nickel; at least one first element selected from the group consisting of; about 0.1 to about 6 weight percent erbium, about 0.1 to about 10 weight percent thulium, about 0.1 to about 15 weight percent ytterbium, and about 0.1 to about 12 weight percent lutetium; at least one second element selected from the group consisting of: about 0.1 to about 4 weight percent gadolinium, about 0.1 to about 4 weight percent yttrium, about 0.05 to about 2 weight percent titanium, about 0.05 to about 2 weight percent hafnium, and about 0.05 to 1 weight percent niobium; at least one ceramic selected from the group consisting of: about 5 to about 40 volume percent aluminum oxide, about 5 to about 40 volume percent silicon carbide, about 5 to about 40 volume percent aluminum nitride, about 5 to 40 volume percent titanium diboride, about 5 to about 40 volume percent titanium boride, and about 5 to about 40 volume percent titanium carbide; and the balance substantially aluminum.