Article protected by a thermal barrier coating having a surface enriched with a stabilization composition comprising an element selected from group 2 or 3 and an element of group 5 of the periodic table

摘要

A protected article (40) is prepared by providing the article (40), depositing a bond coat (60) onto an exposed surface (62) of the article (40), and producing a thermal barrier coating on an exposed surface (66) of the bond coat (60). The step of producing the thermal barrier coating includes the steps of depositing a primary ceramic coating (68) onto an exposed surface (66) of the bond coat (60), and depositing a stabilization composition onto an exposed surface (72) of the primary ceramic coating (68). The stabilization composition includes 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. The atomic ratio of the amount of the first element to the amount of the second element is at least 1:3, more preferably at least 1:1.