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Combustion of Uniformly Sized Glassy Carbon Particles

Levendis, Yiannis A. and Flagan, Richard C. (1987) Combustion of Uniformly Sized Glassy Carbon Particles. Combustion Science and Technology, 53 (2-3). pp. 117-136. ISSN 0010-2202. doi:10.1080/00102208708947023.

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A method for production of spherical particles of glassy carbon has been developed. The panicles exhibit some differences in surface structure, but are otherwise uniform in size and shape. In drop-tube combustion experiments at wall temperatures ranging from 1200 K to 1600 K, some panicles ignited and burned rapidly, reaching temperatures several hundred degrees higher than the wall temperature, while others burned as much as two orders of magnitude more slowly at temperatures only slightly higher than that of the reactor wall. In spite of these differences in ignition behavior, the particles burned with an intrinsic reaction rate that was in close agreement with the Nagle and Strickland-Constable rate for pyrolytic graphite as well as rates previously measured for carbon black and coal char oxidation. X-ray diffraction measurements show that graphitization occurs rapidly in a hot oxidizing atmosphere. Rapid anneal ing of the carbon structure might account for the similarity of the high temperature oxidation rates of carbons from different sources.

Item Type:Article
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Flagan, Richard C.0000-0001-5690-770X
Additional Information:© 1986 Gordon and Breach. (Received August 18, 1986; in final form January 5, 1987) This research was supported by U.S. Department of Energy University Coal Programs Grant Number DE-FG22-84PC70775. The authors gratefully acknowledge technical discussions and assistance from George Gavalis, Patrick Koen, Scott Northrop, Ranajit Sahu, and Adel Sarofim.
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Department of Energy (DOE)DE-FG22-84PC70775
Issue or Number:2-3
Record Number:CaltechAUTHORS:20150630-170642474
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Official Citation:Combustion of Uniformly Sized Glassy Carbon Particles Yiannis A. Levendis , Richard C. Flagan Combustion Science and Technology Vol. 53, Iss. 2-3, 1987, pp. 117-136
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58723
Deposited By: Irina Meininger
Deposited On:22 Jul 2015 19:49
Last Modified:02 Nov 2021 18:23

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