TY - JOUR
T1 - Development of tensile test method for high-density coal under carbonization
AU - Suzuki, Akira
AU - Ueki, Makoto
AU - Aoki, Hideyuki
AU - Miura, Takatoshi
AU - Kato, Kenji
AU - Fukuda, Koichi
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1998
Y1 - 1998
N2 - A new tensile test method under carbonization for high-density coal that would be used in coke making process in next century was developed to estimate the appearance mechanism of coke strength. This method can clarify the appearance mechanism of coke strength under carbonization. We obtained the result that the tensile strength and Young's modulus become large in proportion to the final temperature. In case of large heating rate, the tensile strength and Young's modulus were large. From the microscope observation, coal particles agglomerated to each other among the softening temperature and the strength increased with an increase of heating rate. We also estimated factors related with the appearance mechanism of the strength using a coal pyrolytic model, which was previously developed by authors. The results showed that the large strength is caused by the progress of coke graphitization and an increase of internal tar contributing to sticking on each particle.
AB - A new tensile test method under carbonization for high-density coal that would be used in coke making process in next century was developed to estimate the appearance mechanism of coke strength. This method can clarify the appearance mechanism of coke strength under carbonization. We obtained the result that the tensile strength and Young's modulus become large in proportion to the final temperature. In case of large heating rate, the tensile strength and Young's modulus were large. From the microscope observation, coal particles agglomerated to each other among the softening temperature and the strength increased with an increase of heating rate. We also estimated factors related with the appearance mechanism of the strength using a coal pyrolytic model, which was previously developed by authors. The results showed that the large strength is caused by the progress of coke graphitization and an increase of internal tar contributing to sticking on each particle.
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U2 - 10.2355/tetsutohagane1955.84.5_321
DO - 10.2355/tetsutohagane1955.84.5_321
M3 - Article
AN - SCOPUS:0032072281
VL - 84
SP - 321
EP - 326
JO - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
JF - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
SN - 0021-1575
IS - 5
ER -