Research on carbonization mechanism of coal-tar pitch under high pressure

Lemin Sun, Yongzhen Zhang, Hejun Li

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

In this article, the carbonization rules of coal-tar pitch were studied under normal pressure (0.1Mpa) and different high pressure (40MPa, 80MPa, and 100MPa). It was found that, when coal-tar pitch carbonized under high pressure, there were pyrocarbon occurred during pitch's carbonizing. However, under normal carbonization pressure, there was no pyrocarbon occurred. It could be said that the high pressure was the reason of pyrocarbon occurring. The IR curves revealed that the substrate (on which pyrocarbon could deposited) had difference materials between normal and high pressure. This showed that, low molecules in pitch reacted in different ways under different carbonization situation. In this article, the reason that pyrocarbon produced was explained and the mechanism pitch carbonized under high pressure was analyzed. This work was useful to the fabrication of pitch-based carbon-carbon composites.

源语言英语
主期刊名Mechanics and Material Engineering for Science and Experiments
编辑Y. Zhou, Y. Ghu, Z. Li, Y. Zhou, Y. Gu, Z. Li
608-611
页数4
出版状态已出版 - 2003
活动Proceedings of the International Symposium of Young Scholars on Mechanics and Material Engineering for Science and Experiments - Changsha/Zhangjiajie, 中国
期限: 11 8月 200116 8月 2001

出版系列

姓名Mechanics and Material Engineering for Science and Experiments

会议

会议Proceedings of the International Symposium of Young Scholars on Mechanics and Material Engineering for Science and Experiments
国家/地区中国
Changsha/Zhangjiajie
时期11/08/0116/08/01

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