GAS-TRANSPORT IN POROUS-MEDIA - SIMULATIONS AND EXPERIMENTS ON PARTIALLY DENSIFIED AEROGELS

被引：9

作者：

HASMY, A

BEURROIES, I

BOURRET, D

JULLIEN, R

机构：

[1] Laboratoire de Science des Matériaux Vitreux, Université Montpellier II Place Eugène Bataillon, Montpellier

来源：

EUROPHYSICS LETTERS | 1995年 / 29卷 / 07期

关键词：

D O I：

10.1209/0295-5075/29/7/010

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The experimental density dependence of gas (argon and nitrogen) permeability of partially densified silica aerogels in the Knudsen regime is quantitatively accounted for by a computer model. The model simulates both the structure of the sintered material and the random ballistic motion of a point particle inside its voids. The same model is also able to account for the density dependence of the specific pore surface as measured from nitrogen adsorption experiments.

引用

页码：567 / 572

页数：6

共 15 条

[1]

BEURROIES I, PREPRINT

[2] SMALL-ANGLE NEUTRON-SCATTERING INVESTIGATION OF LONG-RANGE CORRELATIONS IN SILICA AEROGELS - SIMULATIONS AND EXPERIMENTS [J].