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Nanomaterials Work at NASA-Johnson Space CenterNanomaterials activities at NASA-Johnson Space Center focus on single wall carbon nanotube production, characterization and their applications for aerospace. Nanotubes are produced by arc and laser methods and the growth process is monitored by in-situ diagnostics using time resolved passive emission and laser induced fluorescence of the active species. Parametric study of both these processes are conducted to monitor the effect of production parameters including temperature, buffer gas, flow rate, pressure, laser fluence and arc current. Characterization of the nanotube material is performed using the NASA-JSC protocol developed by combining analytical techniques of SEM, TEM, UV-VIS-NIR absorption, Raman, and TGA. Efforts at JSC over the past five years in composites have centered on structural polymernanotube systems. Recent activities broadened this focus to multifunctional materials, supercapacitors, fuel cells, regenerable CO2 absorbers, electromagnetic shielding, radiation dosimetry and thermal management systems of interest for human space flight. Preliminary tests indicate improvement of performance in most of these applications because of the large surface area as well as high conductivity exhibited by SWCNTs.
Document ID
20070011629
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Arepalli, Sivaram
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2005
Subject Category
Solid-State Physics
Meeting Information
Meeting: Nano 2005: International Nano Conference
Location: Sivakasi
Country: India
Start Date: July 13, 2005
End Date: July 15, 2005
Funding Number(s)
CONTRACT_GRANT: NAS9-19100
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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