C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
149/13, 149/21
C04B 41/91 (2006.01) C23G 1/02 (2006.01)
Patent
CA 2330218
A method of removing a ceramic coating (18), such as a thermal barrier coating (TBC) of yttria- stabilized zirconia (YSZ), from the surface of a component (10), such as a gas turbine engine component (10). The method generally entails subjecting the ceramic coating (18) to an aqueous solution of ammonium bifluoride, optionally containing a wetting agent, such as by immersing the component (10) in the solution while maintained at an elevated temperature. Using the method of the invention, a ceramic coating (18) can be completely removed from the component (10) and any cooling holes, with essentially no degradation of the bond coat (16).
Méthode pour enlever un revêtement céramique (18), tel qu'un revêtement thermique (TBC) de zircone stabilisée par l'yttrium (YSZ), de la surface d'un composant (10), comme une turbine à gaz (10). Généralement, la méthode propose de soumettre le revêtement céramique (18) à une solution aqueuse de bifluorure d'ammonium, contenant en option un agent mouillant, par exemple en immergeant le composant (10) dans la solution tout en étant maintenue à une température élevée. En utilisant la méthode de cette invention, un revêtement céramique (18) peut être complètement retiré du composant (10) ainsi que tous les orifices de refroidissement, sans pratiquement aucune dégradation de la couche de liaison (16).
Company General Electric
Craig Wilson And Company
LandOfFree
Method of removing a thermal barrier coating does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of removing a thermal barrier coating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of removing a thermal barrier coating will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1806494