Porous titanium-aluminum alloy and method for producing the same

Details Porous titanium-aluminum alloy and method for producing the same Porous titanium-aluminum alloy and method for producing the same

1979-10-04

1982-05-25

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75222, 428566, B22F 300

Patent

active

043314775

ABSTRACT:
A porous, sintered Ti-Al alloy has specific surface area of 0.01-1 m.sup.2 /g, density of 20-80% of theoretical density and good mechanical strength, suitable for use in capacitor anode bodies, catalyzers, filters, etc. A mixed, press-shaped body of 10-90 atom. % Ti powder and 90-10 atom. % Al powder is processed by a first heat-treatment at 500.degree. to 665.degree. C. for 5 to 60 minutes to make it porous and then by a second heat-treatment at 700.degree. to 1300.degree. C. for 5 to 60 minutes to increase mechanical strength.

REFERENCES:
patent: 3260576 (1966-07-01), Gruene et al.
patent: 3407231 (1968-10-01), Dickinson et al.
patent: 3428490 (1969-02-01), Bravo et al.
patent: 3599053 (1971-08-01), Iida et al.

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