Method of selectively stripping an engine-run ceramic coating

Details Method of selectively stripping an engine-run ceramic coating Method of selectively stripping an engine-run ceramic coating

2006-11-29

2011-10-18

Deo, Duy (Department: 1713)

Etching a substrate: processes

Mechanically shaping, deforming, or abrading of substrate

C216S096000, C216S100000, C216S101000, C216S108000

Reexamination Certificate

active

08038894

ABSTRACT:
A process for selectively stripping a coating from a component of a turbomachine, and particularly a coating having a ceramic matrix that contains metallic particles dispersed therein that render the coating more difficult to remove from the component after the component has been subjected to elevated temperatures during operation of the turbomachine. The process generally includes immersing the component in an aqueous solution containing ferric chloride, nitric acid, and phosphoric acid, for a duration sufficient to attack the metallic particles in the coating. The component is then removed from the aqueous solution and its surface rinsed of the aqueous solution. The immersing and removing steps are then sequentially repeated a sufficient number of times to sufficiently attack the metallic particles to enable the coating to be mechanically removed from the component.

REFERENCES:
patent: 3544348 (1970-12-01), Boone et. al.
patent: 3779879 (1973-12-01), Scott
patent: 4302246 (1981-11-01), Brindisi et al.
patent: 4339282 (1982-07-01), Lada et al.
patent: 4425185 (1984-01-01), Fishter et al.
patent: 4655383 (1987-04-01), Fournes et al.
patent: 5723078 (1998-03-01), Nagaraj et al.
patent: 5944909 (1999-08-01), Reeves et al.
patent: 6238743 (2001-05-01), Brooks
patent: 6294072 (2001-09-01), Fairbourn
patent: 6379749 (2002-04-01), Zimmerman et al.
patent: 6758985 (2004-07-01), Brooks
patent: 6833328 (2004-12-01), Kool et al.
patent: 2005/0127039 (2005-06-01), Rosenzweig et al.
patent: 2006/0127694 (2006-06-01), Hazel et al.

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