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Graphite fiber intercalation: Basic properties of copper chloride intercalated fibersIn situ resistance measurements were used to follow the intercalation of copper chloride in pitch-based fibers. Subsequent single fiber resistivity measurements reveal a large range of resistivities, from 13 to 160 micro-ohms cm. Additional density measurements reveal a bimodal distribution of mass densities. The dense fibers have lower resistivities and correspond to the stage III compound identified by X-ray diffraction. Neither resistivity nor density correlate with diameter. Both energy dispersive spectroscopy and mass density data suggest that excess chlorine resides in the intercalated fiber, resulting in a stoichiometry of C4.9n CuCl2.5 (where n is the stage number) for the denser fibers. Finally, thermogravimetric analysis shows a 33 percent loss in mass upon heating to 700C. This loss in mass is attributed to loss of both chlorine and carbon.
Document ID
19860008972
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Jaworske, D. A. (NASA Lewis Research Center Cleveland, OH, United States)
Miller, J. D. (Kenyon Coll. Gambier, Ohio, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1986
Subject Category
Chemistry And Materials (General)
Report/Patent Number
E-2877
NAS 1.15:87217
NASA-TM-87217
Meeting Information
Meeting: Spring Meeting of the American Physical Society
Location: Las Vegas, NV
Country: United States
Start Date: March 31, 1986
End Date: April 4, 1986
Accession Number
86N18442
Funding Number(s)
PROJECT: RTOP 505-55-72
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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