Ceramic powders and methods therefor
AssigneeGeneral Electric Company
InventorsSurinder Singh Pabla, Joshua Lee Margolies, Padmaja Parakala
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Abstract
A ceramic powder and method of forming the ceramic powder capable of being used in coatings to allow components to survive in high temperatures environments, such as the hostile thermal environment of a gas turbine engine. The ceramic powder includes powder particles each having an inner core formed of a first material and an outer region formed of a second material. The inner core has a lower thermal conductivity than the outer region, and the outer region is more erosion resistance relative to the inner core.
Claims20
A ceramic powder containing powder particles, each of a plurality of the powder particles comprising an inner core formed of a first material and an outer region formed of a second material on the surface of the inner core, wherein the inner core has a lower thermal conductivity than the outer region and the outer region is more erosion resistance relative to the inner core.
A method of forming a ceramic powder containing powder particles, the method comprising:
- forming cores of the powder particles, wherein the cores are formed of a first material;
- and then
- surface coating the cores to form an outer region of the powder particles, wherein each the outer regions is formed of a second material, each of the cores has a lower thermal conductivity than the outer region thereof, and each of the outer regions is more erosion resistance relative to the core thereof.
Dependencies are inferred from the claim text.