Structural models of dense aerogels

被引:20
作者
Esquivias, L [1 ]
Rodriguez-Ortega, J [1 ]
Barrera-Solano, C [1 ]
De la Rosa-Fox, N [1 ]
机构
[1] Fac Ciencias, Dept Fis Mat Condensada, Cadiz 11510, Spain
关键词
structural models; pore volume distributions; aerogels;
D O I
10.1016/S0022-3093(98)00123-9
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Gel structure is depicted as a hierarchy at several levels by means of models using the Monte-Carlo technique, on the basis of random close packing (RCP) premises. The pore volume distributions are calculated from the largest sphere radius inscribed within the interstices. These distributions are compared to the pore volume distributions of classic models and to pore volume distributions of a series of aerogels measured by means of the Brunauer-Emmett-Teller (BET) and Hg intrusion methods. Data on the pore volumes associated with micro-, meso-, or macropores were obtained. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:239 / 243
页数:5
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