Densification of expanded graphite

被引:98
作者
Celzard, A [1 ]
Schneider, S [1 ]
Marêché, JF [1 ]
机构
[1] Univ Henir Poincare Nancy 1, Lab Chim Solide Mineral, CNRS, UMR 7555, F-54506 Vandoeuvre Les Nancy, France
关键词
exfoliated graphite; modeling; X-ray diffraction; density; porosity;
D O I
10.1016/S0008-6223(02)00077-5
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A brief theoretical investigation of the behavior of exfoliated graphite (EG) undergoing compaction is presented. Simple arguments and assumptions allow one to calculate the density of the initial individual worm-like particles of EG for any final porosity of the resultant consolidated blocks. These results as well as excluded volume considerations are used to derive the mean disorientation angle of the graphite sheets within the blocks of compressed EG. X-ray experiments were performed on such autoconsolidated samples, The overall mosaic spreads thus obtained are shown to be in a very good agreement With the model developed in this paper. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2185 / 2191
页数:7
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