Rhodium, platinum, palladium alloy

Details Rhodium, platinum, palladium alloy Rhodium, platinum, palladium alloy

2006-01-03

2006-01-03

Kastler, Scott (Department: 1742)

Alloys or metallic compositions

Platinum base

Rhodium containing

C420S463000, C420S462000, C148S430000

Reexamination Certificate

active

06982059

ABSTRACT:
An alloy and a gas turbine engine component comprising an alloy are presented, with the alloy comprising:palladium, in an amount ranging from about 1 atomic percent to about 41 atomic percent;platinum, in an amount that is dependent upon the amount of palladium, such thata. for the amount of palladium ranging from about 1 atomic percent to about 14 atomic percent, the platinum is present up to about an amount defined by the formula (40+X) atomic percent, wherein X is the amount in atomic percent of the palladium, andb. for the amount of palladium ranging from about 15 atomic percent up to about 41 atomic percent, the platinum is present in an amount up to about 54 atomic percent; andthe balance comprising rhodium, wherein the rhodium is present in an amount of at least 24 atomic percent;wherein the alloy comprises a microstructure that is essentially free of L12-structured phase at a temperature greater than about 1000° C.

REFERENCES:
patent: 3622310 (1971-11-01), Reinacher et al.
patent: 3640705 (1972-02-01), Selman et al.
patent: 3779728 (1973-12-01), Hansen et al.
patent: 4285784 (1981-08-01), Flinn et al.
patent: 6071470 (2000-06-01), Koizumi et al.

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