Composite article having protective coating
AssigneeUnited Technologies Corporation
InventorWayde R. Schmidt
Life of this patent
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Abstract
A composite article includes a substrate and a protective coating on at least a portion of the substrate. The protective coating includes reinforcement particles dispersed within an elastomeric matrix that is modified with a silicon-containing modifier selected from polysilsesquioxane, polyhedral oligomeric silicate, polyhedral oligomeric silsesquioxane (POSS), and combinations thereof. The reinforcement particles are selected from carbon, nickel metal, and combinations thereof. The protective coating is multi-layered and includes a distinct first layer and a distinct second layer that is contiguous with the distinct first layer such that each of the distinct first layer and the distinct second layer have an exposed outer surface.
Claims18
A composite article comprising:
- a substrate;
- and
- a protective coating on at least a portion of the substrate, the protective coating comprising reinforcement particles dispersed within an elastomeric matrix that is modified with a silicon-containing modifier selected from the group consisting of polysilsesquioxane, polyhedral oligomeric silicate, polyhedral oligomeric silsesquioxane (POSS), and combinations thereof, the reinforcement particles being selected from the group consisting of carbon, nickel metal, and combinations thereof, and the protective coating being multi-layered and including a distinct first layer and a distinct second layer contiguous with the distinct first layer such that each of the distinct first layer and the distinct second layer have an exposed outer surface.
A composite article comprising:
- an airfoil having a body that extends between leading and trailing edges;
- and
- a protective coating disposed on the airfoil, the protective coating comprising reinforcement particles dispersed within a silicone matrix that is modified with a silicon-containing modifier selected from the group consisting of polysilsesquioxane, polyhedral oligomeric silicate, polyhedral oligomeric silsesquioxane (POSS), and combinations thereof, the protective coating being multi-layered and including a discrete first layer and a discrete second layer adjacent the discrete first layer such that both the discrete first layer and the discrete second layer have an exposed outer surface, and one, but not the other, of the discrete first layer and the discrete second layer is electrically conductive.
Dependencies are inferred from the claim text.