Back to results
US 2020/0254648 A1Published application
Repair process using networked ceramic nanofibers
AssigneeUnited Technologies Corporation
InventorZhongfen Ding
Life of this patent
Estimating the term…
Abstract
A repair process for an article such as an airfoil includes providing an article that has a substrate and a ceramic barrier coating disposed on the substrate, where the ceramic barrier coating has a damaged region, abrading the damaged region to provide dimple in the ceramic barrier coating, wherein a remaining region of the ceramic barrier coating adjacent the dimple remains intact, and depositing a patch of networked ceramic nanofibers in the dimple.
Claims23
A repair process comprising:
- providing an article that has a substrate and a ceramic barrier coating disposed on the substrate, wherein the ceramic barrier coating has a damaged region;
- abrading the damaged region to provide a dimple in the ceramic barrier coating, wherein a remaining region of the ceramic barrier coating adjacent the dimple remains intact;
- and
- depositing a patch of networked ceramic nanofibers in the dimple, wherein the networked ceramic nanofibers comprise filaments that are non-linear and intertwined so as to form a porous network, the filaments being bonded together at locations where the filaments contact each other.
1 more element
A repair process comprising:
- providing an airfoil that has a substrate and a ceramic barrier coating disposed on the substrate, wherein the ceramic barrier coating has a damaged region;
- abrading the damaged region to provide a dimple in the ceramic barrier coating, wherein a remaining region of the ceramic barrier coating adjacent the dimple remains intact;
- and
- depositing a patch of networked ceramic nanofibers in the dimple, wherein the networked ceramic nanofibers comprise filaments that are non-linear and intertwined so as to form a porous network, the filaments being bonded together at locations where the filaments contact each other.
1 more element
(canceled)
(canceled)
(canceled)
Dependencies are inferred from the claim text.