Appeal 2006-2179
Application 10/735,369
12. A method for preparing a protected article, comprising the
steps of
providing a nickel-base superalloy article that is a
component of a gas turbine engine;
depositing a bond coat onto an exposed surface of the
article; and
producing a thermal barrier coating on an exposed surface
of the bond coat, wherein the step of producing the thermal
barrier coating includes the steps of
depositing a yttria-stabilized zirconia primary
ceramic coating onto an exposed surface of the bond coat,
infiltrating a stabilization composition into an exposed
surface of the primary ceramic coating, wherein the
stabilization composition comprises a first element
selected from Group 2 or Group 3 of the periodic table,
and a second element selected from Group 5 of the
periodic table, and wherein the atomic ratio of the amount
of the first element to the amount of the second element is
at least 1:3.
20. A method for preparing a protected article, comprising the
steps of
providing the article;
depositing a bond coat onto an exposed surface of the
article; and
producing a thermal barrier coating on an exposed surface
of the bond coat, wherein the thermal barrier coating comprises
a primary ceramic coating on the exposed surface of the bond
coat, and
a sintering-inhibitor region at a surface of the primary ceramic
coating, wherein the sintering-inhibitor region comprises a first
element selected from Group 2 or Group 3 of the periodic table,
and a second element selected from Group 5 of the periodic
table, and wherein the atomic ratio of the amount of the first
element to the amount of the second element is at least 1:3.
3
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 Next
Last modified: September 9, 2013