Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2007-11-06
2007-11-06
Zimmerman, John J. (Department: 1775)
Stock material or miscellaneous articles
Composite
Of inorganic material
C416S24100B, C428S633000, C428S632000, C428S699000, C428S701000
Reexamination Certificate
active
10641585
ABSTRACT:
A ceramic material having particular utility as a thermal insulating or thermal barrier coating on metallic substrates is provided. The ceramic material broadly comprises at least one oxide and the balance comprising a first oxide selected from the group consisting of zirconia, ceria, and hafnia. The at least one oxide has a formula A2O3where A is selected from the group consisting of La, Pr, Nd, Sm, Eu, Tb, In, Sc, Y, Dy, Ho, Er, Tm, Yb, Lu, and mixtures thereof. The present invention also broadly relates to an article having a metal substrate and a thermal barrier coating as discussed above.
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Litton David A.
Maloney Michael J.
Trubelja Mladen F.
Ulion Nicholas E.
Warrier Sunil Govinda
Austin Aaron
Bachman & LaPointe
United Technologies Corporation
Zimmerman John J.
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