Pyrolysis Characteristic of Nitrogen in Carbon Fibers during High-Temperature Heat Treatment

Ai Jun Gao; Zuo Guang Zhang; Liang Hua Xu

doi:10.4028/www.scientific.net/AMM.723.752

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 723Pyrolysis Characteristic of Nitrogen in Carbon...

Pyrolysis Characteristic of Nitrogen in Carbon Fibers during High-Temperature Heat Treatment

Abstract:

Pyrolysis mechanism of nitrogen in carbon fibers, heat-treated at various temperatures, was investigated, in relation to the nitrogen chemical bonding states. Nitrogen content shows exponential decreasing with increased temperature and extended time. The pyrolysis of nitrogen exhibited time-temperature equivalence. Nitrogen atoms containing hydrogen in the amorphous region and at the edge of microcrystalline, and the double-bonded nitrogen in pyridine rings are easily pyrolyzed, while nitrogen atoms in the six-member ring of the graphite sheets are difficult to be pyrolyzed.

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Applied Mechanics and Materials (Volume 723)

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752-756

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.723.752

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Online since:

January 2015

Authors:

Ai Jun Gao*, Zuo Guang Zhang, Liang Hua Xu

Keywords:

Binding Energy, Carbon Fiber, Composition, Heat Treatment, Pyrolyze

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