Method of creating pasageways in niobium by CVD of niobium over

Details Method of creating pasageways in niobium by CVD of niobium over Method of creating pasageways in niobium by CVD of niobium over

1988-06-29

1990-09-11

Childs, Sadie

Coating processes

Solid particles or fibers applied

Interior or hollow article coating

427239, 427250, 427352, 4273766, 4273768, B05D 722, C23C 1606

Patent

active

049562010

ABSTRACT:
Method of producing a niobium component having passageways therein, including providing a refractory metal niobium alloy member having slots formed within its outer surface portions, inserting a paste of powdered vanadium into the slots, sintering the powdered vanadium paste, depositing a layer of niobium over the vanadium in the slots and over the outer surface portions of the member by chemical vapor deposition, and removing the vanadium from the slots by acid leaching to produce the niobium component.

REFERENCES:
patent: 3069847 (1962-12-01), Vest
patent: 3230613 (1966-01-01), Rechin et al.
patent: 4060693 (1977-11-01), Meyerhoff
patent: 4098920 (1978-07-01), Miller
patent: 4115916 (1978-09-01), Meyerhoff

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