Refractory aluminides

Details Refractory aluminides Refractory aluminides

1989-09-01

1991-05-14

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder pretreatment

419 26, 419 28, 419 29, 419 45, 419 48, 419 60, G22F 100

Patent

active

050154400

ABSTRACT:
Light weight refractory aluminides, such as Al.sub.3 Nb and related aluminides may be produced from metallic powders by a high temperature exothermic reaction of refractory metals with molten aluminum. Mixtures of refractory metals and aluminum may be prepared and densified by powder metalurgy techniques. Applicant's process permits near net formations of stock shapes and parts by conducting the reaction in situ in a die.

REFERENCES:
patent: 4762558 (1988-08-01), German et al.

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