Oxide coating foundation for promoting TBC adherence

摘要

A process for improving the adherence of a thermal barrier coating to a substrate includes the steps of providing a substrate, depositing a masking layer of aluminum, an aluminum alloy, or titanium alloy, or titanium on a surface of the substrate, depositing a non-thermally grown oxide layer of alumina or titania on the masking layer, and depositing a thermal barrier coating on the oxide layer.