Thermal barrier coating and article comprising same
AssigneeUniversity of Connecticut
InventorsMaurice Gell, Eric Jordan, Jeffrey Roth
Life of this patent
Estimating the term…
Abstract
A method for manufacturing a coating includes dissolving at least one salt in a mixture of water and ethanol to form a precursor solution, adding an additive to the precursor solution to form a fuel solution, and injecting the fuel solution into a plasma flame. The additive includes at least one of urea or ammonium acetate. The additive functions as a fuel to increase a temperature of the plasma flame. The method further includes manufacturing the coating on a substrate. The coating includes a garnet structure including a predetermined amount of yttrium-aluminum, one or more first cracks extending completely through a thickness of the coating, and a porosity greater than ten volume percent.
Claims21
1-18. (canceled)
A method for manufacturing a coating, the method comprising:
- dissolving at least one salt in a mixture of water and ethanol to form a precursor solution;
- adding an additive to the precursor solution to form a fuel solution, wherein the additive comprises at least one of urea or ammonium acetate;
- injecting the fuel solution into a plasma flame, wherein the additive functions as a fuel to increase a temperature of the plasma flame;
- and
- manufacturing the coating on a substrate, wherein the coating comprises:
- a garnet structure including a predetermined amount of yttrium-aluminum;
- one or more first cracks extending completely through a thickness of the coating;
- and
- a porosity greater than ten volume percent.
Dependencies are inferred from the claim text.