System and method of repairing a multi-layer component of an engine
A method of repairing a multi-layer component of an engine in-module includes identifying a damage location on the multi-layer component. The damage location extends at least partially into a ceramic-based top layer of the multi-layer component. The method further includes depositing a material composition onto the damage location at a first temperature range so as to cover the damage location. The material composition includes one or more sintering additives. Further, the method includes applying localized curing to the material composition deposited at the damage location at a second temperature range, the second temperature range being higher than the first temperature range.
1 . A method of repairing a multi-layer component of an engine in-module, the method comprising:
identifying a damage location on the multi-layer component having at least one defect, the at least one defect extending at least partially into a ceramic-based top layer of the multi-layer component, wherein the multi-layer component comprises one or more seal teeth of a seal of the engine;
depositing a material composition at a first temperature range onto the damage location so as to cover the damage location, the material composition comprising one or more sintering additives and a nucleating agent; and
applying localized curing via a heat source at a second temperature range to the material composition deposited at the damage location, the second temperature range being higher than the first temperature range, wherein the second temperature range comprises temperatures equal to or less than about 650 degrees Celsius (° C.), further wherein the heat source comprises a heater, a heat exchanger, or a heated light.
2 . The method of claim 1 , further comprising positioning a protective layer around the damage location before depositing the material composition onto the damage location at the first temperature range.
3 . The method of claim 2 , further comprising removing the protective layer from around the damage location after depositing the material composition onto the damage location.
4 . The method of claim 1 , wherein the one or more sintering additives comprise low melting glass.
5 . The method of claim 1 , wherein depositing the material composition onto the damage location at the first temperature range further comprises at least one of spackling or slurry spraying.
6 . The method of claim 1 , wherein, after applying the localized curing to the material composition deposited at the damage location at the second temperature range, the multi-layer component comprises a uniform density across the multi-layer component.
7 . The method of claim 1 , wherein the first temperature range comprises temperatures ranging from about 15 degrees Celsius (° C.) to about 30° C.
8 . The method of claim 1 , wherein the ceramic-based top layer is constructed of an alumina-based alloy.