Patent ID: 7662489
Filing Date: 2010-02-16
Classification: C23C,F01D

Abstract:
1. A turbine engine component comprising: a substrate; and a thermal barrier coating system deposited on said substrate, said thermal barrier coating system reacting with molten sand deposits to form a barrier phase of at least one of oxyapatite and garnet to resist further penetration of said sand and said thermal barrier coating system comprising at least one layer consisting of a titanate mixed with at least one oxide comprising at least one oxide of a material selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, indium, and yttrium, each said layer having from about 25 to 99 wt % of said at least one oxide.