NTRS - NASA Technical Reports Server

Back to Results
A comparison of the bromination dynamics of various carbon and graphite fibersThe electrical resistance of four grades of pitch-based graphite fibers and three experimental organic vapor-derived fibers was determined in situ during bromination and subsequent exposure to ambient laboratory air. The results show that the least graphitic pitch-based fiber does not brominate significantly, and that bromination and debrominaton reactions proceed much slower for vapor-derived fibers than for pitch-based ones. It is suggested that this decreased reacton rate is primarily due to the differences in graphene plane orientation between the fiber types. The results also imply that the vapor-derived and pitch-based fibers produce true intercalation compounds.
Document ID
Document Type
Reprint (Version printed in journal)
Gaier, James R.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Publication Information
Publication: Synthetic Metals
Volume: 22
ISSN: 0379-6779
Subject Category
Nonmetallic Materials
Distribution Limits
No Preview Available