Substrate protected by superalloy bond coat system and microcracked thermal barrier coating

摘要

A protected article (20) includes a substrate (38) having a surface (32), and a protective system (36) overlying and contacting a first portion (30) of the surface (32) of the substrate (38). The protective system (36) has a nickel-base superalloy bond coat (40), an aluminide layer (42) overlying and contacting the bond coat (40), and a dense vertically microcracked ceramic thermal barrier coating (48) overlying and contacting the aluminide layer (42).