Turbine ring sector having an environmental barrier doped with an electrically-conductive element
AssigneeSafran Ceramics
InventorsMaxime Carlin, Lisa Pin
Life of this patent
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Abstract
A turbine ring sector made of ceramic matrix composite material has a portion forming an annular base with an inner face for defining the inner face of a turbine ring when the ring sector is mounted on a ring support structure and an outer face from which there extends an attachment portion for attaching the ring sector to the ring support structure, the ring sector further including inter-sector faces, each for facing a neighboring ring sector when the ring sector is mounted on the ring support structure; wherein the inter-sector faces are coated in an environmental barrier that is doped with an electrically-conductive compound and that presents at least one slot.
Claims13
A turbine ring sector made of ceramic matrix composite material having a portion forming an annular base with an inner face for defining the inner face of a turbine ring when the ring sector is mounted on a ring support structure and an outer face from which there extends an attachment portion for attaching the ring sector to the ring support structure, the ring sector further comprising inter-sector faces, each for facing a neighboring ring sector when the ring sector is mounted on the ring support structure;
- wherein the inter-sector faces are coated in an environmental barrier that is doped with an electrically-conductive compound and that presents at least one slot slot, and wherein the slot extends through only a fraction of the thickness of the environmental layer.
A turbine ring sector made of ceramic matrix composite material having a portion forming an annular base with an inner face for defining the inner face of a turbine ring when the ring sector is mounted on a ring support structure and an outer face from which there extends an attachment portion for attaching the ring sector to the ring support structure, the ring sector further comprising inter-sector faces, each for facing a neighboring ring sector when the ring sector is mounted on the ring support structure;
- wherein the inter-sector faces are coated in an environmental barrier that comprises a first layer doped with an electrically-conductive compound and a bonding layer arranged between the first layer and the ceramic matrix composite material of the ring sector, the environmental barrier presenting at least one slot, and wherein the slot extends through the first layer, the bonding layer and terminates in the ceramic matrix composite material of the ring sector.
Dependencies are inferred from the claim text.