| abstract |
A method of repairing a thermal barrier of a component coated with such a thermal barrier, said component being made of a high-performance alloy, said thermal barrier being adherent to the alloy and having a lower thermal conductivity than the alloy, the thermal barrier comprising at least less a ceramic, a region of the thermal barrier to be repaired, comprising the following steps: a) Delimitation of the region to be repaired, by a mask protecting the other regions of the thermal barrier; b) Injecting a carrier gas loaded with ceramic precursor droplets into a plasma discharge within a plasma reactor plasma chamber housing the component to be repaired while controlling the concentration of ceramic precursor in the carrier gas and at least one reactor parameter among: plasma chamber pressure, plasma generator power, precursor droplet diameter, for controlling the liquid-state, gel or solid of the ceramic precursor, c) Injection of a unloaded ceramic precursor gas in a plasma discharge within the plasma chamber, steps b) and c) being repeated. |