Patent ID: 8999226
Filing Date: 2015-04-07
Classification: B22F,C04B,C23C,F01D,Y10T

Abstract:
1. A method of forming a thermally insulated component, the method comprising: forming a first mold comprising an engineered surface exhibiting a first surface roughness characteristic; casting a first powder and binder mixture in the first mold to form a green body comprising a first surface having the first surface roughness characteristic; removing the green body from the first mold; forming a second mold comprising an engineered surface exhibiting a second surface roughness characteristic; inserting the green body into the second mold; casting a second powder and binder mixture in a space between the green body and the second mold to form a green body with a secondary coating comprising a second surface having the second surface roughness characteristic; removing the green body with the secondary coating from the second mold; and applying a layer of ceramic insulating material onto the second surface.