APPARATUS AND METHODS FOR FORMING MODIFIED METAL COATINGS

摘要

Methods and systems for forming modified metal coatings on a gas turbine engine component. The gas turbine engine component is placed inside a container having a known volume, along with a source material containing a secondary element. The container, gas turbine engine component, and the source material inside the container are placed into an oxygen-depleted space inside a reaction chamber. At least one temperature for the source material is determined based upon the known volume of the container and an amount of the source material. While in the oxygen-depleted space, the source material is heated to the at least one temperature sufficient to release a vapor phase reactant containing the secondary element. The vapor phase reactant is confined inside the container at an approximately constant pressure and the secondary element is deposited from the vapor phase reactant as a layer on the gas turbine engine component.

主权项

1. A deposition system comprising:
a reaction chamber enclosing a interior space; a vacuum pump in fluid communication with the interior space of the reaction chamber, the vacuum pump configured to evacuate the interior space so that the interior space in an oxygen-depleted state during deposition; a heating element configured to heat the reaction chamber; a container inside the reaction chamber and in fluid communication with the interior space, the container having an interior space of a known volume that is volumetrically smaller than the interior space of the reaction chamber, the container configured to hold a gas turbine engine component and a source material, and the container configured to maintain the interior space of the container at an approximately constant pressure; and a controller configured to heat the source material to at least one temperature based upon the known volume of the interior space of the container and an amount of the source material to release a vapor phase reactant containing the secondary element, wherein the vapor phase reactant is confined by the container in proximity to the gas turbine engine component.