爆轰制备纳米石墨片的微观形成过程研究

孙贵磊; 李晓杰; 闫鸿浩

doi:10.11858/gywlxb.2012.06.006

爆轰制备纳米石墨片的微观形成过程研究

doi: 10.11858/gywlxb.2012.06.006

1.
中国劳动关系学院安全工程系，北京 100048；
2.
大连理工大学工业装备分析国家重点实验室，辽宁大连 116023

详细信息

通讯作者:
孙贵磊 E-mail:sunguilei@126.com

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出版历程
- 收稿日期: 2011-04-13
- 修回日期: 2011-10-21
- 刊出日期: 2012-12-15

Microscopic Mechanism Research on Graphite Nanosheets Preparation by Detonation Technique

1.
Department of Safety Engineering, China Institute of Industrial Relations, Beijing 100048, China;
2.
State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116023, China

摘要

摘要: 石墨的层状结构使外来物质可进入层间，形成插入层；插入层在爆轰条件下分解后可将石墨层片推开，形成纳米石墨薄片。通过建立石墨层间化合物有限元模型，利用拟合法获取层间化合物的相关参数，基于Thomas-Fermi方程推导出相邻石墨层片分离时的层间作用力与层间距的函数关系；通过LS-DYNA模拟了石墨层片的分离过程，并给出石墨层间距随时间的变化关系，从而阐明薄片状无粘连纳米石墨的形成过程。
- 纳米石墨片 /
- 制备机理 /
- LS-DYNA /
- 石墨层间作用力
Abstract: According to the property that foreign materials can insert into graphite layers, nanometer graphite sheets with perfect performance can be prepared by detonation technique. This research, through establishing a finite element model of graphite intercalation compounds, obtained detonation parameters by fitting method, and revealed the functional relation between force and distance of the adjacent graphite interlayer with Thomas-Fermi equation. At last, the splitting process of adjacent graphite layer was simulated by LS-DYNA. Furthermore, the process of preparing graphite nanosheets by detonation technique was also described.
- graphite nanosheets /
- preparation mechanism /
- LS-DYNA /
- binding force between graphite layers

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参考文献(16)

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