| 摘要 |
<p>A method for applying a protective coating to a gas turbine engine component comprises the steps of forming a saturated solution of nickel acetate tetrahydrate, applying a uniform thickness of the coating onto the thermal barrier coating of selected components of the gas turbine engine; and heat treating the coated component in air at a temperature sufficient to form a protective layer of NiO over the thermal barrier coating. The saturated solution of nickel-acetate tetrahydrate is applied as a liquid in an amount sufficient to form a uniform NiO layer over the thermal barrier coating and with sufficient solubility to penetrate into the microscopic cracks of the thermal barrier coating to form a "sacrificial mitigation layer" of NiO that substantially inhibits the reaction between vanadium pentoxide and yttria-stabilized compounds present in the thermal barrier coating.</p> |
