Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
The Effect of Defects on Surface-breakage Strength of Coke
Takashi ARIMA
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2001 Volume 87 Issue 5 Pages 274-281

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Abstract

Single coals were carbonized at different bulk densities in a pilot coke oven. DI6150, micro-strength indices and porosities of cokes were measured and polished coke samples were observed under a low magnification microscope. It is shown that the strength of coke matrix does not depend on the rank of parent coal and that the surface-breakage strength of coke is determined by defects such as non-adhesion grain boundaries and connected pores. The formation mechanism of these defects are discussed.

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© The Iron and Steel Institute of Japan
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