THERMAL BARRIER COATING PROCESS

摘要

THERMAL BARRIER COATING PROCESS A process of providing a thermal barrier coating on a metal substrate comprises the steps of: a) applying a metallurgical bondcoat to the substrate; b) depositing a first zirconia layer on the bondcoat; c) depositing a second zirconia layer on the first zirconia layer; and d) controlling substrate temperature during steps b) and c) to provide the first zirconia layer with substantially zero porosity and to provide the second zirconia layer with between about 10% and 20% porosity. A product produced by the process is also disclosed.