Thermal barrier coatings and processes for applying same

文件类型：PDF文档
文件大小：307K
A process for applying a coating upon an article (60) includes the steps of applying upon at least one surface (62) of an article (60) a bond coat layer (64) composed of a bond coat material and at least one metal selected from the group consisting of magnesium, calcium, strontium, silicon, rare earth metals, Group 3A of the Periodic Table of Elements and Group 4A of the Periodic Table of Elements; oxidizing the at least one metal to form at least one surface variation on an exposed surface of the bond coat layer and to form a thermally grown oxide layer (68) upon the bond coat layer (64); and applying a thermal barrier coating layer (70) upon said thermally grown oxide layer (68) to produce a coated article.