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US 8,771,525 B2Granted
Rotary nanotube bearing structure and methods for manufacturing and using the same
AssigneeThe Charles Stark Draper Laboratory, Inc.
InventorsDavid J. Carter, Marc S. Weinberg, Eugene Cook, Peter Miraglia
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Abstract
In one embodiment, a rotary device includes a multiwall nanotube that extends substantially perpendicularly from a substrate. A rotor may be coupled to an outer wall of the multiwall nanotube, be spaced apart from the substrate, and be free to rotate around an elongate axis of the multiwall nanotube.
Claims12
A method for fabricating a rotary device, comprising:
- providing a multiwall nanotube on a substrate;
- growing a conformal release layer on the substrate and around at least a portion of the multiwall nanotube, wherein the conformal release layer is grown after providing the multiwall nanotube on the substrate;
- depositing rotor material on the conformal release layer and around at least a portion of the multiwall nanotube;
- and
- removing at least a portion of the conformal release layer between surfaces of the substrate and the rotor material so as to space the rotor material from the substrate, but such that the rotor material remains coupled to the multiwall nanotube and is free to rotate about a long axis of the multiwall nanotube.
2 more elements
Dependencies are inferred from the claim text.