Non-continuous abradable coatings
AssigneesROLLS-ROYCE plc, Rolls-Royce North American Technologies Inc.
InventorsAaron Sippel, Matthew R. Gold
Life of this patent
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Abstract
A system may include a component including a substrate and a non-continuous abradable coating on the substrate. The non-continuous abradable coating may include a plurality of respective physical segments. Each respective physical segment may be separated from an adjacent respective physical segment by a respective channel. A respective width of the respective channel between each respective segment and the adjacent respective segment may be greater than a combined maximum thermal expansion of the respective physical segment and the adjacent respective segment toward each other at a maximum design temperature of the component.
Claims20
A component comprising:
- a substrate;
- and
- a non-continuous abradable coating on the substrate, wherein the non-continuous abradable coating comprises a plurality of respective physical segments, wherein each respective segment is separated from an adjacent respective physical segment by a respective channel, wherein the channel extends through an entire thickness of the non-continuous abradable coating, and wherein the channel does not extend through any part of a layer underlying the non-continuous abradable coating.
A system comprising:
- a component comprising:
- a substrate;
- and
- a non-continuous abradable coating on the substrate, wherein the non-continuous abradable coating comprises a plurality of respective physical segments, wherein each respective segment is separated from an adjacent respective physical segment by a respective channel, wherein the channel extends through an entire thickness of the non-continuous abradable coating, and wherein the channel does not extend through any part of a layer underlying the non-continuous abradable coating;
- and
- a rotating component configured to contact an abradable surface defined by the non-continuous abradable coating with a portion of the rotating component.
A method comprising:
- positioning a template on a surface of a component;
- and
- depositing an abradable coating composition on the component, wherein the template causes the abradable coating composition to deposit on the component as a non-continuous abradable coating comprising a plurality of respective physical segments separated by the template, and wherein the template causes the abradable coating composition to not be deposited on portions of the surface of the component under the template.
Dependencies are inferred from the claim text.