-
31浏览
-
0点赞
-
0收藏
-
0分享
-
69下载
-
0评论
-
引用
期刊论文
Mesophase formation of coal-tar pitches used for impregnant of C/C composites ①
,-0001,():
By a polarized light optical microscopy with a hot stage, liquid-phase nuclear magnetic resonance 13 C-NMR and 1H-NMR, X-ray diffractometry and scanning electron microscopy (SEM), the factors that affect the formation of mesophase in C/C composites, such as pressure, quinoline insolubles (QI) and heterocylic compounds, were analyzed. Further, the graphitizability of the resultant carbon was discussed. The results indicate that to some degree, QI contents accelerate the formation of mesophase at atmospheric pressure; while at high pressure, the coalescence and growth of mesophase spherules are impeded and the resultant coke produced from higher QI content pitch is harder to be graphitized. This is in agreement with the transfer of microstructure from domain anisotropy to fine-grained mosaics.
【免责声明】以下全部内容由[黄启忠]上传于[2009年04月05日 20时41分41秒],版权归原创者所有。本文仅代表作者本人观点,与本网站无关。本网站对文中陈述、观点判断保持中立,不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考,并请自行承担全部责任。
本学者其他成果
同领域成果