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Record Details

Record 64 of 1379
Machine Phase Fullerene Nanotechnology: 1996
Author and Affiliation:
Globus, Al(MRJ, Inc., Moffett Field, CA United States)
Chancellor, Marisa K. [Technical Monitor]
Abstract: NASA has used exotic materials for spacecraft and experimental aircraft to good effect for many decades. In spite of many advances, transportation to space still costs about $10,000 per pound. Drexler has proposed a hypothetical nanotechnology based on diamond and investigated the properties of such molecular systems. These studies and others suggest enormous potential for aerospace systems. Unfortunately, methods to realize diamonoid nanotechnology are at best highly speculative. Recent computational efforts at NASA Ames Research Center and computation and experiment elsewhere suggest that a nanotechnology of machine phase functionalized fullerenes may be synthetically relatively accessible and of great aerospace interest. Machine phase materials are (hypothetical) materials consisting entirely or in large part of microscopic machines. In a sense, most living matter fits this definition. To begin investigation of fullerene nanotechnology, we used molecular dynamics to study the properties of carbon nanotube based gears and gear/shaft configurations. Experiments on C60 and quantum calculations suggest that benzyne may react with carbon nanotubes to form gear teeth. Han has computationally demonstrated that molecular gears fashioned from (14,0) single-walled carbon nanotubes and benzyne teeth should operate well at 50-100 gigahertz. Results suggest that rotation can be converted to rotating or linear motion, and linear motion may be converted into rotation. Preliminary results suggest that these mechanical systems can be cooled by a helium atmosphere. Furthermore, Deepak has successfully simulated using helical electric fields generated by a laser to power fullerene gears once a positive and negative charge have been added to form a dipole. Even with mechanical motion, cooling, and power; creating a viable nanotechnology requires support structures, computer control, a system architecture, a variety of components, and some approach to manufacture. Additional information is contained within the original extended abstract.
Publication Date: Jan 01, 1997
Document ID:
20020039864
(Acquired Apr 26, 2002)
Subject Category: GEOPHYSICS
Document Type: Preprint
Meeting Information: Electrochemical Society's 191st Meeting; 4-9 May 1997; Montreal, Quebec; Canada
Meeting Sponsor: Electrochemical Society, Inc.; United States
Contract/Grant/Task Num: RTOP 519-40-12
Financial Sponsor: NASA Ames Research Center; Moffett Field, CA United States
Organization Source: MRJ, Inc.; Moffett Field, CA United States
Description: 3p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: CARBON NANOTUBES; FULLERENES; MOLECULAR DYNAMICS; NANOTECHNOLOGY; GEAR TEETH; GEARS; SHAFTS (MACHINE ELEMENTS); MICROELECTROMECHANICAL SYSTEMS
Availability Source: Other Sources
Availability Notes: Abstract Only
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