Insulating ceramic based on partially filled shapes
AssigneeSiemens Power Generation, Inc.
InventorMichael Anthony Burke
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Abstract
An insulating ceramic made up of a plurality of partially filled shapes (e.g., 101), such as oblate spheroids, spheres, and shapes free of corners, is provided. Each partially filled shape may include an inner skeleton (e.g., 102) and an outer skin (e.g., 104). The inner skeleton may be stabilized at a higher temperature relative to the outer skin. The shapes may be disposed in a binding matrix. The thickness of the outer skin may be very thin in view of the support provided by the inner skeleton, thereby improving the abradability characteristics of the ceramic.
Claims23
An insulating ceramic comprising a plurality of partially filled three dimensional shapes having an outer skin that encapsulates the shapes disposed in a binding matrix.
An insulating ceramic comprising a plurality of partially filled shapes disposed in a binding matrix, wherein each partially filled shape comprises an inner skeleton and an outer skin, and wherein the outer skin of the shape ranges from about 0.1 mm to about 5 mm in thickness.
An insulating ceramic comprising a close-packed array of partially filled spheroids, wherein any spheroid is partially deformed to at least partially fill a void otherwise formed between adjacent spheroids.
Dependencies are inferred from the claim text.