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US 5,334,462 AGranted
Ceramic material and insulating coating made thereof
AssigneeUnited Technologies Corporation
InventorsRaymond W. Vine, Neal P. Anderson
Life of this patent
Estimating the term…
Abstract
A yttria strengthened ceria material is disclosed. The addition of a small amount of yttria (for example 0.5%) significantly strengthens the ceria. The yttria modified ceria is useful as a thermal barrier coating.
Claims4
A hard insulating single phase ceramic material consisting essentially of ceria and an amount of yttria sufficient to increase the room temperature hardness by at least 50% over the room temperature hardness of ceria when measured according to the Vickers Hardness test using a 500 gram load.
Dependencies are inferred from the claim text.