Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate
2008-04-29
2008-04-29
Zimmerman, John J (Department: 1794)
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
C428S472000, C428S702000, C501S103000, C427S419200, C416S24100B
Reexamination Certificate
active
07364802
ABSTRACT:
Ceramic compositions comprising at least about 91 mole % zirconia and up to about 9 mole % of a stabilizer component comprising a first metal oxide having selected from the group consisting of yttria, calcia, ceria, scandia, magnesia, india and mixtures thereof. This stabilizer component further comprises a second metal oxide of a trivalent metal atom selected from the group consisting of lanthana, gadolinia, neodymia, samaria, dysprosia, erbia, ytterbia, and mixtures thereof. These ceramic compositions are useful in preparing thermal barrier coatings having reduced thermal conductivity for the metal substrate of articles that operate at, or are exposed to, high temperatures.
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Boutwell Brett Allen
Bruce Robert William
Gorman Mark Daniel
Spitsberg Irene
Venkataramani Venkat Subramanian
Andes William Scott
General Electric Company
Hartman Domenica N.S.
Hartman Gary M.
Zimmerman John J
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