Abstract: An assembly is provided for a variable vane arrangement of a turbine engine. A platform extends circumferentially about a centerline and radially relative to the centerline between a first platform side and a second platform side. The platform includes a plurality of variable vane receptacles arranged in an annular array about the axial centerline, which variable vane receptacles include a first variable vane receptacle. The first variable vane receptacle is configured with a recess, a bore and a shelf. The recess extends longitudinally along a variable vane pivot axis into the platform from the first platform side to the shelf. The bore extends longitudinally along the variable vane pivot axis into the platform from the shelf. An insert includes a sleeve and a plate. The sleeve lines at least a portion of the bore. The plate is located within the recess adjacent the shelf.

Abstract: A vapor deposition apparatus includes a chamber configured to operate at vacuum and at least one crucible in the chamber. The crucible is configured to receive an ingot, a feeder operable to move the ingot with respect to the at least one crucible, and a heater in the chamber and configured to heat a hot zone between the at least one crucible and the feeder. A method for vapor deposition is also disclosed.

Abstract: An assembly is provided for a variable vane arrangement of a turbine engine. A platform extends circumferentially about a centerline and radially relative to the centerline between a first platform side and a second platform side. The platform includes a plurality of variable vane receptacles arranged in an annular array about the axial centerline, which variable vane receptacles include a first variable vane receptacle. The first variable vane receptacle is configured with a recess, a bore and a shelf. The recess extends longitudinally along a variable vane pivot axis into the platform from the first platform side to the shelf. The bore extends longitudinally along the variable vane pivot axis into the platform from the shelf. An insert includes a sleeve and a plate. The sleeve lines at least a portion of the bore. The plate is located within the recess adjacent the shelf.

Abstract: An apparatus for depositing a coating on a part comprises: a chamber; a source of the coating material, positioned to communicate the coating material to the part in the chamber; a plurality of thermal hoods; and means for moving a hood of the plurality of thermal hoods from an operative position and replacing the hood with another hood of the plurality of hoods.

Abstract: An apparatus for depositing a coating on a part comprises: a chamber; a source of the coating material, positioned to communicate the coating material to the part in the chamber; a plurality of thermal hoods; and means for moving a hood of the plurality of thermal hoods from an operative position and replacing the hood with another hood of the plurality of hoods.

Abstract: An apparatus for depositing a coating on a part comprises: a chamber; a source of the coating material, positioned to communicate the coating material to the part in the chamber; a plurality of thermal hoods; and means for moving a hood of the plurality of thermal hoods from an operative position and replacing the hood with another hood of the plurality of hoods.

Abstract: An apparatus for depositing a coating on a part comprises: a chamber; a source of the coating material, positioned to communicate the coating material to the part in the chamber; a plurality of thermal hoods; and means for moving a hood of the plurality of thermal hoods from an operative position and replacing the hood with another hood of the plurality of hoods.

Abstract: A vapor deposition apparatus includes a chamber configured to operate at vacuum and at least one crucible in the chamber. The crucible is configured to receive an ingot, a feeder operable to move the ingot with respect to the at least one crucible, and a heater in the chamber and configured to heat a hot zone between the at least one crucible and the feeder. A method for vapor deposition is also disclosed.

Abstract: A coating system includes a work piece, a coating delivery apparatus configured to apply a coating material to the work piece in a plasma-based vapor stream, and a first electron gun configured to direct a first electron beam at the plasma-based vapor stream for adding thermal energy to the coating material in the plasma-based vapor stream.

Abstract: An apparatus deposits a coating on a part. The apparatus comprises a chamber and a sting assembly for carrying the part. The sting assembly is shiftable between: an inserted condition where the sting assembly holds the part within the chamber for coating; and a retracted condition where the sting assembly holds the part outside of the chamber. The apparatus comprises a source of the coating material positioned to communicate the coating material to the part in the inserted condition. The apparatus comprises a thermal hood comprising a first member and a second member. The second member is between the first member and the part when the part is in the inserted condition. The second member is carried by the sting assembly so as to retract with the sting assembly as the sting assembly is retracted from the inserted condition to the retracted condition.

Abstract: An apparatus deposits a coating on a part. The apparatus comprises a chamber and a sting assembly for carrying the part. The sting assembly is shiftable between: an inserted condition where the sting assembly holds the part within the chamber for coating; and a retracted condition where the sting assembly holds the part outside of the chamber. The apparatus comprises a source of the coating material positioned to communicate the coating material to the part in the inserted condition. The apparatus comprises a thermal hood comprising a first member and a second member. The second member is between the first member and the part when the part is in the inserted condition. The second member is carried by the sting assembly so as to retract with the sting assembly as the sting assembly is retracted from the inserted condition to the retracted condition.

Abstract: A method includes generating a plasma plume with a plasma gun, delivering a plurality of coating materials to the plasma plume with a powder feeder assembly to vaporize the coating materials. The delivery includes delivering a first (bond coat) material from a first powder feeder to the plasma gun, ceasing delivery of the first material, increasing a rate of delivery of a second (rare earth stabilized zirconia) material from a second powder feeder to the plasma plume, increasing a rate of delivery of a third material (a rare earth stabilized zirconia material different from the second material) from a third powder feeder to the plasma plume, decreasing a rate of delivery of the second material, and decreasing a rate of delivery of the third material, and depositing the plurality of coating materials on a work piece to produce a layered coating with blended transitions between coating layers.

Abstract: A multilayer coating includes a bond coat layer, a first barrier layer applied on the bond coat layer, and a second barrier layer applied on the first barrier layer. The first barrier layer has a compositional gradient comprising a majority of a first rare earth stabilized zirconia material proximate the bond coat layer to a majority of a second rare earth stabilized zirconia material away from the bond coat layer. The first and second rare earth stabilized zirconia materials are different. The second barrier layer has a compositional gradient comprising a majority of the second rare earth stabilized zirconia material to 100 wt % of a third rare earth stabilized zirconia material away from the first barrier layer.

Abstract: An apparatus for coating a work piece includes a process chamber, a coating material supply apparatus located at least partially within the process chamber for delivering a coating material to the work piece, a pre-heater assembly adjoining the process chamber, and a support for holding the work piece. The pre-heater assembly includes a housing that opens to the process chamber, a thermal hood positioned within the housing and configured to reflect thermal energy for reflecting thermal energy toward the work piece. The support is movable to selectively move the work piece between a first position within the housing of the pre-heater assembly and a second position within the process chamber and outside the housing of the pre-heater assembly.

Abstract: A grit blast free method of removing a ceramic thermal barrier layer from a turbine component is described. The method comprises removing the layer in an autoclave with a caustic medium followed by a low pressure water jet wash. The component is dried in a stream of hot dry nitrogen and a new thermal barrier coating is applied before the component reenters product flow.

Abstract: A multilayer coating includes a bond coat layer and a first barrier layer applied on the bond coat layer. The first barrier layer has a compositional gradient comprising a majority of a first rare earth stabilized zirconia material proximate the bond coat layer to a majority of a second rare earth stabilized zirconia material away from the bond coat layer. The first and second rare earth stabilized zirconia materials are different.

Abstract: An apparatus includes a work piece support for holding and selectively rotating a work piece, a coating delivery apparatus configured to apply a coating material to the work piece, a susceptor positioned adjacent to the work piece support, and a first electron gun configured to direct a first electron beam at the susceptor such that the susceptor radiates heat toward the work piece.

Abstract: An apparatus deposits a coating on a part. The apparatus comprises a chamber and a sting assembly for carrying the part. The sting assembly is shiftable between: an inserted condition where the sting assembly holds the part within the chamber for coating; and a retracted condition where the sting assembly holds the part outside of the chamber. The apparatus comprises a source of the coating material positioned to communicate the coating material to the part in the inserted condition. The apparatus comprises a thermal hood comprising a first member and a second member. The second member is between the first member and the part when the part is in the inserted condition. The second member is carried by the sting assembly so as to retract with the sting assembly as the sting assembly is retracted from the inserted condition to the retracted condition.

Abstract: A multilayer coating includes a bond coat layer and a first barrier layer applied on the bond coat layer. The first barrier layer has a compositional gradient comprising a majority of a first rare earth stabilized zirconia material proximate the bond coat layer to a majority of a second rare earth stabilized zirconia material away from the bond coat layer. The first and second rare earth stabilized zirconia materials are different.

Abstract: A coating system includes a work piece, a coating delivery apparatus configured to apply a coating material to the work piece in a plasma-based vapor stream, and a first electron gun configured to direct a first electron beam at the plasma-based vapor stream for adding thermal energy to the coating material in the plasma-based vapor stream.