Fabrication of a rotary carbon nanotube bearing test apparatus
Name
Fabrication of a rotary carbon.pdf
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1.39 MB
Format
Adobe PDF
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0c93cb2fda8590d47a3291fd68e86100
Author(s)
Cook, E. H.
Weinberg, M. S.
Spakovszky, Zoltan S
Carter, David J
Date Issued
December 2015
Journal
Journal of Physics: Conference Series
Publisher
IOP Publishing
Citation
Cook, E H et al. “Fabrication of a Rotary Carbon Nanotube Bearing Test Apparatus.” Journal of Physics: Conference Series 660 (2015): 12081. © Copyright 2017 IOP Publishing
Version
Final published version
Abstract
Carbon Nanotubes (CNTs) are attractive elements for bearings in MicroElectro-Mechanical Systems (MEMS), because their structure comprises nested shells with no bonding and sub-nanometre spacing between them, enabling relative motion with low friction and wear. A reliable bearing technology is critical to bringing rotating MEMS machines from laboratory demonstrations to common use. We report here the
design and fabrication of a test rotor, a testing apparatus and testing attempts, and integration of CNTs with MEMS. The device improves on existing CNT bearing demonstrators by establishing a vertical bearing orientation (enabling superior rotor balance and speed, and drive mechanism placement flexibility) and a manufacturable process (employing CNTs grown in place by chemical vapour deposition (CVD)). The main outstanding challenge to demonstrating rotation is available CVD CNT quality.
MIT Department
Charles Stark Draper Laboratory
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
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Creative Commons Attribution 3.0 Unported licence
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DOI of Published Version
https://doi.org/10.1088/1742-6596/660/1/012081
