摘要:
Methods of fabricating coated components (100) using multiple types of fillers are provided. One method comprises forming one or more grooves (132) in an outer surface (112) of a substrate (110). Each groove has a base (134) and extends at least partially along the outer surface. A sacrificial filler (32) is deposited within the groove(s), a second filler (33) is deposited over the sacrificial filler (32), and a coating (150) is disposed over at least a portion of the outer surface and over the second filler. The method further includes removing the sacrificial filler and at least partially removing the second filler from the groove(s), to define one or more channels (130) for cooling the component.
摘要:
Methods of fabricating coated components (100) using multiple types of fillers are provided. One method comprises forming one or more grooves (132) in an outer surface (112) of a substrate (110). Each groove has a base (134) and extends at least partially along the outer surface. A sacrificial filler (32) is deposited within the groove(s), a second filler (33) is deposited over the sacrificial filler (32), and a coating (150) is disposed over at least a portion of the outer surface and over the second filler. The method further includes removing the sacrificial filler and at least partially removing the second filler from the groove(s), to define one or more channels (130) for cooling the component.
摘要:
Methods of fabricating coated components (100) using multiple types of fillers are provided. One method comprises forming one or more grooves (132) in an outer surface (112) of a substrate (110). Each groove has a base and extends at least partially along the outer surface of the substrate. The method further includes disposing a sacrificial filler within the groove(s), disposing a permanent filler (33) over the sacrificial filler, disposing a coating (150) over at least a portion of the substrate and over the permanent filler, and removing the first sacrificial filler from the groove(s), to define one or more channels (130) for cooling the component. A component (100) with a permanent filler is also provided.
摘要:
Methods of fabricating coated components (100) using multiple types of fillers are provided. One method comprises forming one or more grooves (132) in an outer surface (112) of a substrate (110). Each groove has a base and extends at least partially along the outer surface of the substrate. The method further includes disposing a sacrificial filler within the groove(s), disposing a permanent filler (33) over the sacrificial filler, disposing a coating (150) over at least a portion of the substrate and over the permanent filler, and removing the first sacrificial filler from the groove(s), to define one or more channels (130) for cooling the component. A component (100) with a permanent filler is also provided.
摘要:
Macrocyclic poly(alkylene dicarboxylate) oligomers are prepared in high yield by the reaction of a dicarboxylic acid chloride such as terephthaloyl chloride with at least one bis(hydroxyalkyl) ester such as bis(4-hydroxybutyl) terephthalate, in the presence of a highly unhindered amine or a mixture thereof with at least one other tertiary amine such as triethylamine, in a substantially inert organic solvent such as methylene, chlorobenzene or a mixture thereof. The concentration of the reagents in the reaction mixture are at least 0.08 M.