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AssigneeHamilton Sundstrand Corporation
InventorsBrent J. Merritt, Viktor Kilchyk
Estimating the term…
In one aspect, a rotor shroud for a rotary machine includes a disk portion extending along and oriented about a central axis of the rotary machine, a transition portion extending from the disk portion, and a flared portion extending axially from the transition portion. The disk portion, the transition portion, and the flared portion include a plastic substrate and metal plating disposed on at least apportion of an outer surface of the plastic substrate. The plastic substrate has a matrix material and fibers embedded in the matrix material. The fibers have a first coefficient of thermal expansion. The metal plating has a second coefficient of thermal expansion. The fibers are selected such that a bulk coefficient of thermal expansion of the plastic substrate at the outer surface of the plastic substrate substantially matches the second coefficient of thermal expansion of the metal plating.
A rotor shroud for a rotary machine comprising:
A method of forming a rotor shroud for a turbomachine, the method comprising:
The method of 16, wherein the plastic of the plastic substrate has a third coefficient of thermal expansion, the third coefficient of thermal expansion greater than the first coefficient of thermal expansion of the fibers.
The method of 18, wherein the first coefficient of thermal expansion of the fibers is less than the second coefficient of thermal expansion of the metal plating.
Dependencies are inferred from the claim text.