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Self-assembled ultra fine carbon coils by wet electro-spinning
Faculty
Science
Year:
2006
Type of Publication:
Article
Pages:
2858-2862
Authors:
Ali, Ashraf A
DOI:
10.1016/j.matlet.2006.02.019
Journal:
MATERIALS LETTERS ELSEVIER SCIENCE BV
Volume:
60
Research Area:
Materials Science; Physics
ISSN
ISI:000239732800017
Keywords :
carbon filaments, carbonization, crystallite size, electron microscopy, Raman spectroscopy
Abstract:
Electro-spun polyacrylonitrile (PAN)/dimethylfonnamide (DMF) polymer solution has been found to produce coil like structures. Two heat treatment steps (stabilization and carbonization) have been used to enhance their mechanical and electrical properties. The relationship between coil morphology and processing conditions is discussed. Raman analysis after carbonization showed peaks at 1360 and 1580 cm(-1) for the D and G bands, respectively. The crystallite size of the carbonized coils was found to be within the same range as those in commercial PAN-based HMS4 carbon fibers. (c) 2006 Elsevier B.V. All rights reserved.
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