A method and device for coating a component wherein the cooling fluid ducts contained in the component have to be reopened following the coating step. The component has a first region and a second region, where the first region includes at least one cooling fluid opening having an adjoining cooling fluid channel and where the first region is to be coated with a coating material which is not to be applied in the second region.

A method and device for coating a component wherein the cooling fluid ducts contained in the component have to be reopened following the coating step. The component has a first region and a second region, where the first region includes at least one cooling fluid opening having an adjoining cooling fluid channel and where the first region is to be coated with a coating material which is not to be applied in the second region.

A component for a semiconductor processing chamber includes a ceramic body having at least one surface with a first average surface roughness of approximately 8-16 micro-inches. The component further includes a conformal protective layer on at least one surface of the ceramic body, wherein the conformal protective layer is a plasma resistant rare earth oxide film having a substantially uniform thickness of less than 300 m over the at least one surface and having a second average surface roughness of below 10 micro-inches, wherein the second average surface roughness is less than the first average surface roughness.

A component for a semiconductor processing chamber includes a ceramic body having at least one surface with a first average surface roughness of approximately 8-16 micro-inches. The component further includes a conformal protective layer on at least one surface of the ceramic body, wherein the conformal protective layer is a plasma resistant rare earth oxide film having a substantially uniform thickness of less than 300 m over the at least one surface and having a second average surface roughness of below 10 micro-inches, wherein the second average surface roughness is less than the first average surface roughness.

A method of depositing a coating on a component of a turbine engine. The method includes forming a turbine component including at least one cooling flow passage in fluid communication with an aperture on a surface of the turbine component. A protective shield is formed on an inner surface of the at least one cooling flow passage and extending to an exterior of the turbine component via the aperture. During a coating process, the protective shield is configured to block the coating from being deposited in the at least one cooling flow passage via the aperture. Subsequent to coating, at least a portion of the protective shield is removed to provide for passage of a cooling fluid flow in the at least one cooling flow passage. The cooling fluid flow exits the turbine component through the aperture. A turbine component employing user of the protective shield is also disclosed.

A method of depositing a coating on a component of a turbine engine. The method includes forming a turbine component including at least one cooling flow passage in fluid communication with an aperture on a surface of the turbine component. A protective shield is formed on an inner surface of the at least one cooling flow passage and extending to an exterior of the turbine component via the aperture. During a coating process, the protective shield is configured to block the coating from being deposited in the at least one cooling flow passage via the aperture. Subsequent to coating, at least a portion of the protective shield is removed to provide for passage of a cooling fluid flow in the at least one cooling flow passage. The cooling fluid flow exits the turbine component through the aperture. A turbine component employing user of the protective shield is also disclosed.

Methods and systems are provided for filling surface pores of a cylinder inner surface coating with one or more fill materials to provide desired material and performance properties. In one example, a cylinder for an engine includes an inner surface including a coating having a plurality of surface pores, at least a portion of the plurality of surface pores filled with one or more fill materials, the one or more fill materials configured to decrease friction, increase tribofilm formation, adjust heat transfer, decrease material deposit, and/or decrease run-in duration.

A method for creating a three-dimensional (3D) mark in a protective coating including at least one of a TBC and a bond coating over a metal part, is provided. The method may include positioning a mask over the protective coating, the mask including an opening pattern therein; and performing an abrasive waterjet process on the protective coating using the mask. The abrasive waterjet erodes a first portion of the protective coating exposed through the first opening pattern to create the 3D mark. The mask is removed, leaving the 3D mark in the protective coating. The 3D mark only partially penetrates through the protective coating. A metal part may include a metal body, a protective coating over the metal body, and the 3D mark in the protective coating, is also provided. The 3D mark in the protective coating may include an opening having a width of between 30 and 300 micrometers.

Methods and systems are provided for filling surface pores of a cylinder inner surface coating with one or more fill materials to provide desired material and performance properties. In one example, a cylinder for an engine includes an inner surface including a coating having a plurality of surface pores, at least a portion of the plurality of surface pores filled with one or more fill materials, the one or more fill materials configured to decrease friction, increase tribofilm formation, adjust heat transfer, decrease material deposit, and/or decrease run-in duration.

A system according to various embodiments can include: a coating system configured to apply a thermal coating material to a component, the component having a plurality of cooling holes; an airflow system coupled with the coating system, the airflow system configured to force air through the component; and a control system coupled with the airflow system and the coating system, the control system configured to: detect coating instructions for the coating system, the coating instructions instructing the coating system to apply the thermal coating material to a subset of the plurality of cooling holes; and instruct the airflow system to force air through the subset of the plurality of cooling holes during application of the thermal coating material to the component in response to detecting the coating instructions.