Patent ID: 7429424
Filing Date: 2008-09-30
Classification: C04B,C23C,F01D,F05D

Abstract:
1. A thermal barrier coating in a thermal barrier coating/environmental barrier coating system (TBC/EBC system) located on a silicon containing material substrate, comprising a compound having a primary constituent portion and a stabilizer portion stabilizing said primary constituent, said primary constituent portion of said thermal barrier coating (TBC) consisting of a mixture of hafnia present in an amount of at least about 5 mol % of the primary constituent and zirconia, and said stabilizer portion of said thermal barrier coating comprises at least one metal oxide comprised of cations with a +2 or +3 valence present in the amount of about 10 to about 40 mol % of the thermal barrier coating, wherein the TBC compound has a cubic or a pycholore crystal structure.